SM170380 [ETC]
Current and Voltage Controls 3-Phase Voltage Sequence Control; 电流和电压控制3相电压序列控制
| 型号： | SM170380 |
| 厂家： | 
ETC |
| 描述： | Current and Voltage Controls 3-Phase Voltage Sequence Control |
| 文件： | 总2页 (文件大小：75K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Current and Voltage Controls
3-Phase Voltage Sequence Control
Type SM 170
• 3-phase monitoring relay for phase
sequence/phase loss
• Measures when all 3 phases are present and
have the correct phase sequence
• Output: 10 A SPDT relay
• Plug-in type module
• S-housing
• LED-indication for power supply and output ON
• Power supply is the 3-phased measuring voltage
Product Description
Ordering Key
SM 170 400
3-phase plug-in monitoring running on only 2 phases or Housing
and phase sequence/phase- to secure the right phase se- Function
loss relay. Frequently used to quence when connecting a Output
prevent a 3-phase motor from load to the mains.
Type
Power supply
Type Selection
Plug
Output
Supply: 220 VAC
SM 170 220
Supply: 380 VAC
SM 170 380
Supply: 400 VAC
SM 170 400
Supply: 415 VAC
SM 170 415
Circular
SPDT
Input Specifications
Output Specifications
Input
Pin 5
Pin 6
Pin 7
Pin 11
Output
SPDT relay
250 VAC (rms)
(cont./elect.)
Phase L1
Phase L2
Phase L3
Neutral (optional connection)
measures on own supply
Rated insulation voltage
Contact ratings (AgCdO)
Resistive loads
µ (micro gap)
AC 1
DC 1
or
10 A/250 VAC (2500 VA)
1 A/250 VDC (250 W)
10 A/25 VDC (250 W)
2.5 A/230 VAC
5 A/24 VDC
≥ 30 x 106 operations
Small inductive loads AC 15
DC 13
Supply Specifications
Power supply AC types
Rated operational voltage
Through pins 5, 6, 7 & 11
Mechanical life
Electrical life
Overvoltage cat. III (IEC 60664)
(IEC 60038)
AC 1
≥ 2.5 x 105 operations
(at max. load)
Operating frequency
Dielectric strength
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 µs) (cont./elect.)
(IEC 60664)
≤ 7200 operations/h
220
380
400
415
3 x 220 VAC ± 15%, 45 to 65 Hz
3 x 380 VAC ± 15%, 45 to 65 Hz
3 x 400 VAC ± 15%, 45 to 65 Hz
3 x 415 VAC ± 15%, 45 to 65 Hz
≥ 2 kVAC (rms) (cont./elect.)
Internal measuring circuit is
connected to pins 5 & 7
Voltage interruption
Dielectric voltage
Rated impulse withstand volt.
≤ 40 ms
None (supply/elect.)
4 kV (1.2/50 µs) (line/neutral,
line/line), direct connection
to electronics
Rated operational power
2.5 VA
Specifications are subject to change without notice
1
SM 170
General Specifications
Mode of Operation
The relay measures on its own phase does not exceed 70%
3-phased power supply and of the nominal voltage. If it
operates when all phases are exceeds this value the con-
present and the phase se- nection cannot be recom-
Reaction time
τ = 0.5 s, worst case reac-
tion time may be up to 5 x τ
Indication for
Power supply ON
Output ON
LED, green
LED, red
quence is correct.
mended (see description ex.
3). The regenerated voltage
will be a lower phase voltage
Environment
Degree of protection
Pollution degree
(IEC 60947-1)
IP 20 B (IEC 60529)
(IEC 60664)
Example 1
The relay is for monitoring combined with a phase angle
that the power supply has a failure.
correct phase sequence and
that all phase voltages are Example 3
present. The relay is a 3-phase If the value of the regene-
power supply monitoring re- rated voltage is slightly higher
1: SM 170 380/400/415
2: SM 170 220
-20° to +50°C (-4° to +122°F)
-50° to +85°C (-58° to +185°F)
Operating temperature
Storage temperature
lay.
than 70% of the nominal volt-
age, the relay releases when
neutral is connected to pin 11
Weight
Approvals
200 g
UL, CSA, SEV
(SEV only 3 x 220 VAC)
Example 2
The relay releases in case of as sensitivity is improved.
interruption of one of the
phases, provided that the
voltage regenerated by elec-
tric motors on the interupted
Wiring Diagrams
Example 1
Example 2 and 3
Accessories
Sockets◊
S 411
HF
SM 13
BB 4
FRS 2
Hold down spring◊
Mounting rack
Socket covers
Front mounting bezel
For further information refer to "Accessories".
Operation Diagram
Phase L1, pin 5
Phase L2, pin 6
Phase L3, pin 7
Relay ON
2
Specifications are subject to change without notice
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