24RCM-24DMQFK [BEL]
150 /300 W DC-DC Converters;
| 型号： | 24RCM-24DMQFK |
| 厂家： | 
BEL FUSE INC. |
| 描述： | 150 /300 W DC-DC Converters |
| 文件： | 总14页 (文件大小：3455K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RCM Series Data Sheet
150 /300 W DC-DC Converters
Features
Description
• RoHS lead-free-solder product
The RCM Series converters are reliable power supplies for
railway and transportation systems. There are 2 input voltage
ranges covering all common railway batteries. The output
delivers 150 or 300 W at 12 or 24 V. The converters are
designed for chassis mounting and exhibit a closed housing
with cooling openings.
• 2 input voltage ranges, covering all railway batteries
• Single output, 12 or 24 V
• Closed housing for chassis mounting
• Extremely high efficiency and high power density
• Low inrush current
Many options are available, such as an output ORing FET for
redundant operation, output voltage adjustment, interruption
time of 10 ms (class ST2), shutdown input, and an output
voltage monitor controlling a relay (change-over contact).
• 3 connectors: Input, output, auxiliary
• Overtemperature, overvoltage, overcurrent, and overload
protection
• Many options available
• Compliant to EN 50155, EN 50121-3-2, AREMA
• Fire and smoke: compliant to EN 45545 and NFPA 130
• Warranty 5 years.
Safety-approved to the latest edition of IEC/EN 60950-1
and UL/CSA 60950-1
1
1
1 pending
Table of Contents
Page
Page
Description ............................................................................ 1
Model Selection .................................................................... 2
Functional Description .......................................................... 3
Electrical Input Data.............................................................. 4
Electrical Output Data ........................................................... 6
Description of Options ......................................................... 8
Electromagnetic Compatibility (EMC) .................................. 9
Immunity to Environmental Conditions.............................. 11
Mechanical Data ................................................................. 12
Safety and Installation Instructions .................................... 13
Accessories........................................................................ 14
Copyright © 2018, Bel Power Solutions Inc. All rights reserved.
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 1 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Model Selection
Table 1: Model Selection
Input voltage
Output
Power
Ponom
[W]
Efficiency2
Model
[%]
Options
1
1
Vi min
[V]
Vi cont
[V]
Vi max
[V]
Vonom
Ionom
ηmin
ηtyp
[V]
[A]
[%]
14.4
43.2
14.4
43.2
16.8 (24)
45
50.4
12
24
12.5
6.25
150
150
88
90
90
91
24RCM150-12
24RCM150-24
D, M, Q, F, K
50.4 (110) 137.5
154
50.4
154
12
24
12.5
6.25
150
150
91
92
92.5
93
110RCM150-12
110RCM150-24
16.8 (24)
45
12
24
25
12.5
300
300
89
90
90.5
91
24RCM300-12
24RCM300-24
50.4 (110) 137.5
12
24
25
12.5
300
300
91
92
92.5
93.5
110RCM300-12
110RCM300-24
1
2
Short time; see table 2 for details.
Efficiency at TA = 25 °C, Vi nom, Io nom, Vo nom, only option D fitted.
Part Number Description
110 RCM 150 -24 D M Q F K
Operating input voltage Vi cont (continuously):
16.8 – 45 VDC .......................................................... 24
50.4 – 137.5 VDC .................................................... 110
Series ........................................................................... RCM
Output power:
150 W .................................................................... 150
300 W .................................................................... 300
Nominal output voltage:
12 V .......................................................................... -12
24 V .......................................................................... -24
Auxiliary functions and options:
Out OK, output voltage adjust, shutdown 1 ..................D
Interruption time ..........................................................M
ORing FET ...................................................................Q
Fuse built-in................................................................. F
Pluggable Connectors ................................................ K
1
Opt. D requires the auxiliary connector.
Note: The sequence of options must follow the order above.
Note: All models are RoHS-compliant for all six substances.
Available combinations of options:
24/110RCMxxx-xx (K)
24/110RCMxxx-xxD (K)
24/110RCMxxx-xxDF (K)
24/110RCMxxx-xxDMQ (K)
24/110RCMxxx-xxDMQF (K)
Example: 110RCM150-24DMQ: DC-DC converter, input
voltage range 50.4 to 137.5 V continuously, output
providing 24 V /6.25 A, monitoring relay, output
voltage adjust, shutdown input, interruption time
10 ms, integrated ORing FET, operating ambient
temperature TA = –40 to 70 °C, RoHS-compliant
for all six substances.
Input voltage range and input current, nominal output voltage
and current, degree of protection, batch no., serial no., and
data code including production site, version (modification
status) and date of production.
Product Marking
Type designation, applicable safety approval and recognition
marks, CE mark, pin allocation, and product logo.
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 2 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
An auxiliary converter supplies all circuits with a stable bias
voltage.
Functional Description
The converters are designed as active clamp forward con-
verters with a switching frequency of approximately 120 kHz.
The built-in high-efficient input filter together with a small input
capacitance generates very low inrush current of short
duration. An antiparallel diode acts as reverse polarity pro-
tection together with the external circuit breaker or fuse.
An output ORing FET is available (option Q) and allows for a
redundant power supply system. If there are no external circuit
breakers, it is possible to order the converter with incor-
porated fuse (opt. F). Because this fuse is not accessible, a
serial diode provides reverse polarity protection (only with
option F or M).
The circuitry providing the interruption time (opt. M) is located
after the input filter.
Opt. D encompasses an additional auxiliary connector and
allows for output voltage adjust and a primary shutdown. An
output voltage monitor controls a relay with a change-over
contact.
The rectification on the secondary side is provided by syn-
chronous rectifiers, in order to keep the losses as low as
possible. The output voltage control logic is located on the
secondary side and influences the primary logic through
magnetic feedback.
R–
R
R
R+
JM194f
OK1
OK2
Secondary
control logic
Primary
control logic
SD
Isolated
driver
SD0
OK0
Fuse
(option F)
Vi+
NTC
1
Opt. M
Vo+
Vo–
2
Opt. Q
Input
filter
Output
filter
+
C
hu
Vi–
PE
Auxiliary
converter
Cy
Cy
Cy
1 Series diode, only fitted with opt. F or M
2 Bipolar suppressordiode with opt. F or M
Auxiliary connector (only with option D)
Fig. 1
Block diagram
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 3 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Electrical Input Data
General Conditions:
– TA = 25 °C, unless TC is specified.
Table 2a: Input data of RCM150
Input
24RCM150
typ
110RCM150
typ
Unit
Characteristics
Conditions
Io = 0 – Io max
min
max
min
max
Vi cont
Operating input voltage
16.8
(24)
45.0
50.4
(110)
137.5
V
continuous
TC min – TC max
Vi 2s
Vi nom
Vi abs
Ii
for ≤ 2 s
without shutdown
14.4
0
50.4
55
43.2
0
154
Nominal input voltage
Input voltage limits
Typical input current
No-load input power
Idle input power
24, (36)
(72), (96), 110
165
3 s without damage
Vi nom, Io nom
6.8
2.5
0.7
40
1.5
4 2
A
Pi 0
Pi SD
Ci
Vi min – Vi max, Io = 0
Vi min – Vi max, VSD = 0 V
4
6
W
1.5
0.72
1.5
Input capacitance1
10
µF
mΩ
A
Ri
Input resistance
100
75
100
100
0.5
Iinr p
tinr d
ton
Peak inrush current
Duration of inrush current
Start-up time at switch on
Vi = Vi max, Po nom
0.5
ms
0 → Vi min, Po nom
1000
300
1000
300
Start-up time after removal
of shutdown
Vi min, Po nom
VSD = 0 → 5 V
Table 2b: Input data of RCM300
Input
24RCM300
typ
110RCM300
typ
Unit
Characteristics
Conditions
min
max
min
max
Vi cont
Operating input voltage
Io = 0 – Io max
16.8
(24)
45.0
50.4
(110)
137.5
V
continuous
TC min – TC max
Vi 2s
Vi nom
Vi abs
Ii
for ≤ 2 s
without shutdown
14.4
0
50.4
55
43.2
0
154
Nominal input voltage
Input voltage limits
Typical input current
No-load input power
Idle input power
24 (36)
(72) (96) 110
3 s without damage
Vi nom, Io nom
165
13.9
4
3
4
A
Pi 0
Pi SD
Ci
Vi min – Vi max, Io = 0
Vi min – Vi max, VSD = 0 V
6
6
W
1.5
1.5
Input capacitance1
6
12
µF
mΩ
A
Ri
Input resistance
140
120
0.5
140
150
0.5
Iinr p
tinr d
ton
Peak inrush current
Duration of inrush current
Start-up time at switch on
Vi = Vi max, Po nom
ms
0 → Vi min, Po nom
1000
300
1000
300
Start-up time after removal
of shutdown
Vi min, Po nom
VSD = 0 → 5 V
1
Not smoothed by the inrush current limiter at start-up (for inrush current calculation)
Typ. value at Vi max. At lower Vi, the idle and low-load input power are smaller.
2
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 4 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
not reach stable operating conditions. Worst case conditions
are at lowest Vi and highest output power Po.
Input Transient and Reverse Polarity Protection
A suppressor diode and a symmetrical input filter form an
effective protection against input transients, which typically
occur in many installations, but especially in battery-driven
mobile applications.
Recommended values for Cext for different batteries are listed
in table 3, which should allow for stable operation up to an
input inductance of 2 mH. Ci is specified in table 2.
If the input voltage has the wrong polarity, the incorporated
antiparallel diode causes the external input circuit breaker or
fuse to trip. With option M or F (incorporated fuse), an active
reverse-polarity protection circuit prevents from any damage.
Efficiency
The efficiency depends on the model and on the input voltage.
η [%]
110RCM150-12DMQ
Input Under-/Overvoltage Lockout
JM217
100
If the input voltage is out of range, an internally generated
inhibit signal disables the converter to avoid any damage.
V = 50 V
V = 110 V
i
i
90
80
70
60
Inrush Current and Stability with Long Supply Lines
V = 137 V
i
The converter operates with relatively small input capacitance
Ci resulting in low inrush current of short duration.
If a converter is connected to the power source through supply
lines with reasonable length, no additional measures are
necessary to ensure stable operation.
Po / Po nom
0.8
0
0.2
0.4
0.6
Only in the case of very long supply lines exhibiting a con-
siderable inductance Lext, an additional external capacitor Cext
connected across the input pins improves the stability and
prevents oscillations; see fig. 2.
Fig. 3a
Efficiency versus Vi and Po (110RCM150-12DMQ)
JM085d
η [%]
110RCM150-24DMQ
Converter
Lext
JM210b
Rext
Ri
100
Vi+
Vi–
Vo+
Vo–
V = 50 V
V = 110 V
i
i
+
ri
Cext
Ci
90
V = 137 V
i
80
Fig. 2
Input configuration
70
60
Actually, an RCM Series converter with its load acts as
negative resistor ri, because the input current Ii rises, when
the input voltage Vi is decreased. It tends to oscillate with a
resonant frequency determined by the line inductance Lext and
the input capacitance Ci + Cext, damped by the resistor Rext
The whole system is not linear at all and eludes a simple
calculation. One basic condition is given by the formula:
Po / Po nom
0.8
0
0.2
0.4
0.6
Fig. 3b
.
Efficiency versus Vi and Po (110RCM150-24DMQ)
η [%]
110RCM300-24DMQ
Lext•Po max
Ci + Cext > ——————————
ext • Vi min
dVi
( ri = ——— )
dIi
JM218
100
R
²
V = 50 V
V = 110 V
i
i
Rext is the series resistor of the voltage source including
90
supply lines. If this condition is not fulfilled, the converter may
V = 137 V
i
80
Table 3: Recommended values for the capacitor Cext
VB nom
24 V
RC150
1500 µF
1000 µF
220 µF
100 µF
RCM300
3000 µF
2000 µF
440 µF
Rated voltage
40 V
70
36 V
63 V
60
Po / Po nom
0.8
0
0.2
0.4
0.6
72 V
125 V
Fig. 3c
110 V
200 µF
200 V
Efficiency versus Vi and Po (110RCM300-24DMQ)
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 5 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Electrical Output Data
General Conditions:
– TA = 25°C, unless TC is specified.
– R input not connected
Table 4a: Output data of RCM150
Output
12 V
typ
12
24 V
typ
24
Unit
Characteristics
Conditions
min
max
12.12
12.36
min
max
24.24
24.72
Vo
Output voltage 1
Vi nom, 0.5 Io nom
11.88
11.64
23.76
23.28
V
Vow
Worst case output
voltage
Vi min – Vi max
TC min – TC max, 0 – Io nom
Vodroop Voltage droop
–20
14
–40
28
mV/A
Vo L
Vo P
Io nom
Io L
Overvoltage shutdown 6
Overvoltage protection 2
Nominal output current
Output current limit
14.3
13.0
15
15.8
15
28.5
6.5
30
31.5
7.2
V
A
12.5
6.25
TC min– TC max
vo
Output
noise 3
Switch. frequ.
Totalincl.spikes
Vi nom, Io nom
40
60
80
mVpp
BW = 20 MHz
120
vo d
Dynamic
load
regulation
Voltage
Vi nom
0.1 ↔ 0.9 Io nom
700
1000
deviation5
4
t d
Recovery time
5
5
ms
αVo
Temp. coefficient of Vo (NTC) 0 – Ionom,TC min – TC max
–0.02
0
–0.02
0
%/K
Table 4b: Output data of RCM300
Output
12 V
typ
12
24 V
typ
24
Unit
Characteristics
Conditions
min
max
12.12
12.36
min
max
24.24
24.72
Vo
Output voltage 1
Vi nom, 0.5 Io nom
Vi min – Vi max
11.88
11.64
23.76
23.28
V
Vow
Worst case output
voltage
TC min – TC max, 0 – Io nom
Vodroop Voltage droop
–20
14
–40
28
mV/A
Vo L
Vo P
Io nom
Io L
Overvoltage shutdown6
Overvoltage protection 2
Nominal output current
Output current limit
14.3
27
15
15.8
30
28.5
13.5
30
31.5
15
V
A
25
12.5
TC min – TC max
vo
Output
noise 3
Switch. frequ.
Totalincl.spikes
Vi nom, Io nom
60
80
80
mV
pp
BW = 20 MHz
120
vo d
Dynamic
load
regulation
Voltage
Vi nom
0.1 ↔ 0.9 Io nom
100
1200
deviation 5
4
t d
Recovery time
5
5
ms
αVo
Temp. coefficient of Vo (NTC) 0 – Io nom,TC min – TC max
–0.02
0
–0.02
0
%/K
1
If the output voltage is increased above Vo nom through R-input control, the output power should be reduced accordingly, so that Po max
and TC max are not exceeded.
2
3
4
5
6
Breakdown voltage of the incorporated suppressor diode at 1 mA . Exceeding this value might damage the suppressor diode.
Measured according to IEC/EN 61204 with a probe described in annex A
Recovery time until Vo returns to ±1% of Vo; see fig. 4.
No overshoot at switch on.
Output overvoltage protection by an electronic circuitry.
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 6 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Output Voltage Regulation
Output Current Limitation
Line and load regulation of the output is so good that input
voltage and output current have virtually no influence to the
output voltage.
The output is continuously protected against open-circuit (no
load) and short-circuit by an electronic current limitation with
rectangular characteristic; see fig. 5.
Vo
Vo nom
Vo
Vod
Vo 1%
Vo 1%
0.98
0.5
Vod
td
td
t
Io/Io nom
1
0.5
JM219
Io
Io nom
0
≥ 10 µs
≥ 10 µs
IoL
0.5
1.0
0
t
05102c
Fig. 6
Rectangular current limitation
Fig. 4
Typical dynamic load regulation of output voltage
Series and Parallel Connection
Thermal Considerations and Protection
The outputs of several RCM Series converters may be con-
nected in series.
A temperature protection is incorporated in the primary and
secondary control logic each. It generates an internal inhibit
signal, which disables the converter in case of overtempera-
ture. The converter automatically recovers, when the tempera-
ture drops below the limit. See fig. 5. The relationship between
TA and TC depends heavily upon the conditions of operation
and integration into a system.
Note: If the sum of the output voltages is greater than 60 V, it
cannot be considered as SELV (Safety Extra Low Voltage)
according to the safety standards.
Several RCM models of the same type can be operated in
parallel connection. To ensures proper current sharing, the
load lines should have equal length and section. The output
voltage exhibits a slight droop characteristic, which facilitates
current sharing. In addition, the output voltage tends to be
lowered with increasing temperature.
Caution: The installer must ensure that under all operating con-
ditions TC remains within the limits stated in table 8.
Po [W]
Redundant Systems
110RCM300
300
For redundant systems, we recommend the options Q and D,
see Options.
Convection
cooling
240
180
120
60
LED Indicator
The converters exhibit a green LED "Out OK", signaling that
the output voltage is within the specified range.
110RCM150
TC max
JM245
0
TA [°C]
50
60
70
80
90
100
Fig. 5
Typical output power derating versus temperature;
vertical mounting position, free convection cooling.
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 7 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
The output response is shown in fig. 8.
Description of Options
Note: In systems consisting of several converters, this feature may
be used to control the activation sequence by logic signals or to
enable the power source to start up, before full load is applied.
Option D: Output Monitor, Output Adjust, Shutdown
Option D consists of several auxiliary functions and en-
compasses an additional auxiliary connector.
Option M: Interruption Time
Output VoltageAdjust (R)
The interruption time thu is specified in the railway standard
EN 50155:2017 clause 5.1.1.4: It is tested at the nominal
battery voltage for interruption and short-circuit of the input.
After such an event, the system is ready for another such event
after 10 s. Fig. 8 shows the output voltage Vo with option M.
Note: With open R-input, Vo = Vo nom
.
The converter allows for adjusting the output voltage in the
range of 80 to 105% of Vo nom. The adjust is accomplished by
an external resistor Rext1 or Rext2, connected to the R-input;
see fig. 7.
thu = 10 ms (Class S2) in all other cases.
For less critical applications, option M is not required (class
S1, no interruption time).
Depending on the value of the required output voltage, the
resistor shall be connected:
either: Between the R-pin and R– to adjust the output
tr
Vo/Vo nom
thu
tf
voltage to a value below Vo nom
:
1
Vo
td on
Rext1 ≈ 4 kΩ • ––––––––– – 15.8 kΩ
Vo nom – Vo
0.1
0
Note: Rext1 = 0 Ω reduces Vo to 80%.
t off
ton
or: Between the R-pin and R+ to adjust the output voltage to
SD
1
a value greater than Vo nom
:
(Vo – 2.5 V)
Rext2 ≈ 4 kΩ • –––––––––––––––––– – Ra
2.5 V • (Vo/Vo nom – 1)
JM193a
t
0
Note: Rext2 = 0 Ω increases Vo to 105%.
Fig. 8
Ra = 300 kΩ for Vo nom = 12 V Ra = 680 kΩ for Vo nom = 24 V
Typical output response to the SD-signal. If option M is not
fitted, thu = 0 ms.
JM244
Ra
Vi+
R+
R
Option Q: ORing FET for Redundant Systems
Bias
The outputs of 2 parallel connected converters are separated
with ORing diodes (built by FETs). If one converter fails, the
remaining one must be capable to still deliver the full power to
the load. If more power is needed, the system may be
extended to more parallel converters (n+1 redundancy).
Rext2
4 kΩ
Vref = 2.5 V
+
Rext1
Control
logic
15.8 kΩ
R–
Current sharing must be ensured by load lines of equal
section and length. In addition, a slight droop characteristic of
the output voltage and a negative temperature coefficient are
helpful as well.
Vi–
Vo–
Fig. 7
Output voltage control via R-input
To keep the losses as small as possible, the ORing diode is
replaced by a FET. The voltage drop is approx. 22 mV (not
dependent of Io).
Output Voltage Monitor (D)
The output voltage Vo is monitored. When Vo is in range, a relay
with a change-over contact is activated, connecting OK0 with
OK1.
Note: In the case of a failing converter, the output voltage is
maintained by the redundant converters. However, the failing item
should be identified and replaced. We recommend the Out OK
function (option D).
Note: The trigger levels are typ. ±5 % of Vonom (with open R-input).
Data of relay contacts: 0.4 A /150 VDC
Primary Shutdown (SD)
Option F: Incorporated Fuse
The railway standard EN 50155 disadvises fuses in the con-
verters. Consequently, the installer must preview an external
fuse or circuit breaker. However, when this is not possible, an
incorporated fuse is available (option F). This fuse is not
accessible and will not trip, except if the converter is defect.
The output of the converter may be enabled or disabled by a
logic signal (e.g. CMOS) applied between the shutdown pin
SD and SD0 (= Vi–). If the shutdown function is not required,
pin SD can be left open-circuit. Voltage on pin SD:
Note: Converters with option F or option M are protected against
input reverse polarity by a series diode.
Converter operating:
Converter disabled:
12 to 154 V or open-circuit
–2 to +2 V
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 8 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Table 5:Recommended external fuses (same as with option F)
Option K: Pluggable Connectors
Converter
Specification
Ordering number
This option allows the use of preassembled pluggabale
connectors; for details see Accessories.
24RCM150-12, -24 15 A fast acting BEL 0ADE (P) 15-R
24RCM300-12, -24 25 A fast acting BEL 0ADE (P) 25-R
110RCM150-12, -24 5 A fast acting Littelfuse 0507 005.MXEP
110RCM300-12, -24 8 A fast acting Littelfuse 0507 008.MXEP
Note: Female connectors must be ordered separately.
Electromagnetic Compatibility (EMC)
Electromagnetic Immunity
Table 6: Electromagnetic immunity (type tests)
Phenomenon
Standard Level
Coupling
mode1
Value
applied
Waveform
Source
imped.
Test
procedure
In
Perf.
oper. crit.2
Electrostatic
discharge
(to case)
IEC/EN
61000-4-2
4 3
contact discharge
air discharge
6000 Vp
8000 Vp
1/50 ns
330 Ω
150 pF
10 positive and
10 negative
discharges
yes
A
Electromagnetic
field
IEC/EN
61000-4-3
x4
antenna
antenna
20 V/m
20 V/m
10 V/m
5 V/m
AM 80% /1 kHz
AM 80% /1 kHz
n.a.
n.a.
80 – 800 MHz
800 – 1000 MHz
1400 – 2000 MHz
2000 – 2700 MHz
5100 – 6000 MHz
yes
yes
A
A
5
3 V/m
Electrical fast
transients/burst 61000-4-4
IEC/EN
3
capacitive, o/c
2000 Vp bursts of 5/50 ns
2.5/5 kHz over
50 Ω
60 s positive
60 s negative
transients per
coupling mode
yes
A
3 6
i/c, +i/–i
direct coupling
15 ms; burst
period: 300 ms
Surges
IEC/EN
61000-4-5
3 7
i/c
2000 Vp
1000 Vp
1.2/50 µs
42 Ω
0.5 µF
5 pos. and 5 neg.
surges per
coupling mode
yes
yes
A
A
+i/–i
Conducted
disturbances
IEC/EN
61000-4-6
38
i, o, signal wires
10 VAC
(140 dBµV)
AM 80%
1 kHz
150 Ω
0.15 – 80 MHz
1
i = input, o = output, c = case
2
3
4
5
6
7
8
A = normal operation, no deviation from specs.; B = normal operation, temporary loss of function or deviation from specs possible
Exceeds EN 50121-3-2:2016 table 5.3
Corresponds to EN 50121-3-2:2016 table 5.1
Corresponds to EN 50121-3-2:2016 table 5.2 (compliance with digital communication devices).
Corresponds to EN 50121-3-2:2016 table 3.2
Covers or exceeds EN 50121-3-2:2016 table 3.3
Corresponds to EN 50121-3-2:2016 table 3.1 (radio frequency common mode).
MELCHER
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BCD.00791 Rev AE, 28-Mar-2018
Page 9 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Radiated emissions have been tested according to EN 55011,
group 1, class A . These limits are similar to the requirements
of EN 50121-3-2:2016 and EN 50121-4:2016, both calling up
EN 61000-6-4+A1:2011, table 1. The tests were executed with
horizontal and vertical polarization. The worse result is shown
in fig. 10.
Electromagnetic Emissions
All conducted emissions (fig. 9) have been tested as per
EN 55011, group 1, class A. These limits are much stronger
than requested in EN 50121-3-2:2016, table 2.1, and coincide
with EN 50121-4:2016, table 1.1. The values in fig. 9 are
quasipeak values, which are always lower then peak values.
The average values must respect a margin of 10 dBµV below
the limits for quasipeak.
VUS EMC Labatory, 110RCM150-24DMQF; Vi
Testdistance 10 m, Class A, 3-Oct-2016; ESVS 30, Rhode
=
110 VDC, Vo
=
24
&
V
/
6.25
A
dBµV/m
60
Schwarz
JM212
110RCM150-24DMQF; Vi
Class A, 3-Oct-2016
=
110 V, Vo
=
24 V; Io = 6.25 A
dBµV
80
50
40
30
20
EN 55011 A qp
EN 55011 A av
60
40
10
20
0
0
30
50
100
200
500
1000 MHz
0.2
0.5
1
2
5
10
20 MHz
Fig. 10a
110RCM150-24: Typ. radiated disturbances in 10 m distance
(Vi = 110 V, Ii nom, resistive load, quasi peak).
Fig. 9a
110RCM150-24: Typ. disturbance voltage at the input (Vi
= 110 V, Ii nom, resistive load, quasi peak and average)
VUS EMC Labatory, 300RCM150-24DMQF; Vi
Testdistance 10 m, Class A, 21-Apr-2017; ESVS 30, Rhode
=
110 VDC, Vo
=
24
&
V
/
12.5
A
dBµV/m
60
Schwarz
JM221
50
40
30
20
110RCM300-24DMQF; Vi
Class A, 20-Apr-2017
=
110 V, Vo
=
24 V; Io = 12.5 A
dBµV
80
EN 55011 A qp
EN 55011 A av
60
40
10
0
30
50
100
200
500
1000 MHz
20
0
0.2
0.5
1
2
5
10
20 MHz
Fig. 10b
110RCM300-24: Typ. radiated disturbances in 10 m
distance (Vi = 110 V, Ii nom, resistive load, quasi peak).
Fig. 9b
110RCM300-24: Typ. disturbance voltage at the input (Vi
= 110 V, Ii nom, resistive load, quasi peak and average)
MELCHER
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BCD.00791 Rev AE, 28-Mar-2018
Page 10 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Immunity to Environmental Conditions
Table 7: Mechanical and climatic stress. Air pressure 800 – 1200 hPa
Test method
Standard
Test conditions
Conv. Status
Ad
Low temperature
start-up test
EN 50155:2017, clause 13.4.4
IEC/EN 60068-2-1
Temperature, duration
Performance test
–40 °C, 2 h
+25 °C
Not operating
Be
Dry heat test,
cycle A
EN 50155:2017, clause 13.4.5
IEC/EN 60068-2-2
Temperature:
Duration:
70°C
6 h
Operating
perf. crit. A
Db 2 Cyclic damp heat
test
EN 50155:2017, clause 13.4.7
IEC/EN 60068-2-30
Temperature:
Cycles (respiration effect):
Duration:
55 °C and 25 °C
2
2× 24 h
Not operating
--
--
--
--
Functional random
vibration test
EN 50155:2017 clause 13.4.11.4 Acceleration amplitude:
0.1 gn = 1.01 m/s2
5 – 150 Hz
30 min (10 min in each axis)
Operating
perf. crit. A
EN 61373:2010 clause 8,
class B, body mounted1
Frequency band:
Test duration:
Simulated long life
testing
EN 50155:2017 clause 13.4.11.2 Acceleration amplitude:
0.58 gn = 5.72 m/s2
5 – 150 Hz
15 h (5 h in each axis)
Not operating
EN 61373:2010 clause 9,
class B, body mounted1
Frequency band:
Test duration:
Shock testing
EN 50155:2017 clause 13.4.11.3 Acceleration amplitude:
5.1 gn
30 ms
18 (3 in each axis)
Operating
perf. crit. A
EN 61373:2010 clause 10,
class B, body mounted1
Bump duration:
Number of bumps:
Vibration
sinusoidal
AREMAPart. 11.5.1
class C, D, E, I, J
Acceleration amplitude:
0.3" (5 – 20 Hz)
1.5 gn =14.7 m/s2
10 – 200 Hz
Operating
perf. crit. A
Frequency
Test duration:
12 h (4 h in each axis)
--
Mechanical
Shock
AREMAPart. 11.5.1
class C, D, E, I, J
Acceleration amplitude:
Bump duration:
10 gn = 98 m/s2
11 ms
Operating
perf. crit. A
Number of bumps:
18 (3 in each direction)
1
Body mounted = chassis of a railway coach
Temperatures
Table 8: Temperature specifications, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar)
Temperature
EN 50155:2017 Class OT4
min max 10 minutes
Unit
Characteristics
Conditions
TA
TC
TS
Ambient temperature
Case temperature1
Converter operating
–40
–40
–55
70
90
85
85
°C
Storage temperature
Not operational
1
Measured at the measurement point TC; see Mechanical Data.
Reliability
Table 9: MTBF and device hours
Ratings at specified
case temperature
between failures
Model
MTBF
Demonstrated hours 1
Accord. to IEC 62380
110RCM150-24DMQF
110RCM300-24DMQF
1 137 600 h
1 126 000 h
1
Statistical values, based upon an average of 4300 working hours per year and in general field use over 5 years; upgrades and
customer-induced errors are excluded.
MELCHER
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BCD.00791 Rev AE, 28-Mar-2018
Page 11 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
Measuring
point of case
temperatureTC
Mechanical Data
76.45
European
Projection
Dimensions in mm.
Measuring
point of case
temperatureTC
48
JM203b
98
78
96
116
75.45
68.2
40.9
29.5
11.7
11.15
JM205b
Standard
models
Standard
models
RCM150
RCM300
74.5
67.5
29.5
40.9
11
13.1
RCM300
with
option K
RCM150
with
option K
Fig. 11a
Fig. 12a
Case of RCM150 (RCM01)
weight approx. 520 g,
Case of RCM300 (RCM02)
weight approx. 820 g,
Aluminum, EP-powder coated
Aluminum, EP-powder coated
pluggable
connector
pluggable
connector
JM246
JM247
Fig. 11b
Fig. 12b
Plugged connector for
RCM150 with option K
Plugged connector for
RCM300 with option K
17.7
5.9
MELCHER
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BCD.00791 Rev AE, 28-Mar-2018
Page 12 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
- Output connector, 2 pins: Wago 745-602/006, Vo–, Vo+
wire section: 0.2 – 16 mm2, 24 – 10 AWG
Safety and Installation Instruction
with option K: Weidmüller 1048390000
Connectors and Pin Allocation of RCM150
- Auxiliary connector: Phoenix Contact 1713883; pin
allocation see fig. 14.
- Input connector, 3 pins: Wago 236-403: Vi+, Vi–, PE;
wire section: 0.08 – 2.5 mm2, 28 – 12 AWG;
with option K: Phoenix Contact 1923762
Installation Instruction
- Output connector, 2 pins: Wago 236-402: Vo+, Vo–;
wire section: 0.08 – 2.5 mm2, 28 –12 AWG
with option K: Phoenix Contact 1923759
These converters are components, intended exclusively for
inclusion by an industrial assembly process or by
a
professionally competent person. Installation must strictly
follow the national safety regulations in respect of the
enclosure, mounting, creepage distances, clearances,
markings and segregation requirements of the end-use
application.
- Auxiliary connector: Phoenix Contact 1713883;
pin allocation see fig. 13.
Connection to the system shall only be effected with cables
with suitable wire section.
The auxiliary connector shall be connected via the suitable
female connector; see Accessories.
Other installation methods may not meet the safety requi-
rements. Check that PE is safely connected to protective earth.
No fuse is incorporated in the converter (except for option F).
An external circuit breaker or a fuse in the wiring to one or both
input pins.
Fig. 13
Pin allocation of RCM150
Do not open the converters, or the warranty will be invalidated.
Make sure that there is sufficient airflow available for
convection cooling and that the temperature of the bottom
plate is within the specified range. This should be verified by
measuring the case temperature at the specified measuring
point, when the converter is operated in the end-use
application. TC max should not be exceeded. Ensure that a
failure of the converter does not result in a hazardous
condition.
Connectors and Pin Allocation of RCM300
- Input connector, 3 pins: Wago 745-353: Vi–, Vi+, PE
wire section: 0.2 – 6 mm2, 24 – 10 AWG
with option K: Weidmüller 1048500000
Standards and Approvals
The RCM Series converters are approved according to the last
edition of IEC/EN 60950-1 and UL/CSA 60950-1.
They have been evaluated for:
• Class I equipment
• Building in
• Double or reinforced insulation based on 250 VAC or 240
VDC between input and output, and between input and the
relay contacts (OK0, OK1, OK2)
Fig. 14
Pin allocation of RCM300
• Pollution degree 2 environment.
Table 10: Isolation
Characteristic
Input to
case+output
Output
to case
OK contacts to
Unit
output1
4.2
input
2.86
2.0
case
2.86
2.0
outputs
Electric
strength
test
Factory test >1 s
2.86 2
2.0
2.86
2.0
2.86
2.0
kVDC
kVAC
AC test voltage equivalent
to actual factory test
3.0
Insulation resistance
>3003
5.0
>3003
3.5
>300
3.5
>300
3.5
>300
3.5
>300
3.5
MΩ
Creepage distances
mm
1
Pretest of subassemblies in accordance with IEC/EN 60950
Additional test with 1500 VDC during 10 s as per EN 50155:2017.
Tested at 500 VDC
2
3
MELCHER
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BCD.00791 Rev AE, 28-Mar-2018
Page 13 of 14
RCM Series Data Sheet
150 /300 W DC-DC Converters
The converters are subject to manufacturing surveillance in
accordance with the above mentioned UL standards and with
ISO 9001.
The converters comply with the fire & smoke standard EN
45545:2013 + A1:2015, HL1 to HL3.
Insulation Test
Cleaning Liquids and Protection Degree
The electric strength test is performed in the factory as routine
test in accordance with EN 50514, EN 50155:2017, and
AREMA. It should not be repeated in the field, and the
Company will not honor warranty claims resulting from
incorrectly executed electric strength tests.
The converters are not hermetically sealed. In order to avoid
possible damage, any penetration of liquids shall be avoided.
The converters correspond to protection degree IP 30.
Railway Applications
The RCM Series converters have been designed observing
the railway standards EN 50155:2017, EN 50121-3-2:2016,
and AREMA. All boards are coated with a protective lacquer.
For converters RCM150 with option K, use (see fig. 16):
Accessories
• HZZ00300-G (3 poles, Phoenix Contact 1942167)
• HZZ00301-G (2 poles, Phoenix Contact 1942154).
Wire section: 0.2 – 2.5 mm2, 24 – 12 AWG.
Female Connectors
A suitable female auxiliary connector HZZ00145-G (Phoenix
Contact 1790344) is available; see fig. 15.
Wire section: 0.2 – 1.5 mm2, 24 – 16 AWG.
Fig. 16
Female connectors for RCM150 with option K
For converters RCM300 with option K, use (see fig. 17):
• HZZ00303-G (3 poles, Weidmüller 1060580000)
• HZZ00302-G (2 poles, Weidmüller 1060550000).
Wire section: 0.5 – 10 mm2, 24 – 8 AWG.
Fig. 15
Female connector 14 pins, HZZ00145-G
(Phoenix Contact 1790344)
Fig. 17
Female connectors for RCM300 with option K
NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
Copyright © 2018, Bel Power Solutions Inc. All rights reserved.
belfuse.com/power-solutions
MELCHER
The Power Partners.
BCD.00791 Rev AE, 28-Mar-2018
Page 14 of 14
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