B128724060 [ETC]
Timers Delay on Release; 延时定时器上发布
| 型号： | B128724060 |
| 厂家： | 
ETC |
| 描述： | Timers Delay on Release |
| 文件： | 总2页 (文件大小：65K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Timers
Delay on Release
Types B 128, B 121
• Time ranges: 0.15 s to 60 s
• Automatic start after drop out of power supply
• Knob-adjustable time within range
• Repeatability deviation: ≤ 1%
• Output: 10 A SPDT relay
• Plug-in type module
• Scantimer housing
• LED-indication for supply on
• AC or DC power supply
Product Description
Ordering Key
Function
Output
Type
Power supply
Time range
B 128 220 006
Mono-function, plug-in, delay used to switch on an exhaust
on release, miniature time re- fan and keep it running for a
lays up to 60 s covering 2 certain period of time after
individual time ranges. These disconnection of power sup-
economical timers are often ply.
Type Selection
Plug
Output Time ranges
Supply: 24 VAC
Supply: 120 VAC
Supply: 220 VAC Supply: 24 VDC
Circular
8 pins
SPDT
SPDT
0.15 - 6 s
1.5 - 60 s
B 128 024 006
B 128 024 060
B 128 120 006
B 128 120 060
B 128 220 006
B 128 220 060
B 128 724 006
B 128 724 060
Circular
11 pins
0.15 - 6 s
1.5 - 60 s
B 121 024 006
B 121 024 060
B 121 120 006
B 121 120 060
B 121 220 006
B 121 220 060
B 121 724 006
B 121 724 060
Time Specifications
Output Specifications
Output
SPDT relay
250 VAC (rms)
(contact/electronics)
Time ranges
0.15 -
1.5
6 s
60 s
Basic electrical insulation
-
Time range accuracy
0 to +20% on max.
min. actual time ≤ min.
set time
Contact ratings (AgCdO)
Resistive loads
µ (micro gap)
AC 1
DC 1
or
10 A/250VAC (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
Repeatability deviation
Time variation
Within rated power supply
and ambient temperature
≤ 1%
Small inductive loads AC 15
DC 13
≤ 0.05%/V
≤ 0.2%/°C
Mechanical life
Electrical life
Reset
Time and/or relay
Power supply interruption
≥ 500 ms
AC 1
≥ 2.5 x 105 operations
(at max. load)
Operating frequency
≤ 7200 operations/h
Insulation voltages
Rated insulation voltage
≥ 2.0 kVAC (rms) (cont./elec.)
Rated transient protection volt. 4 kV (1.2/50 µs) (cont./elec.)
(IEC 60664)
Specifications are subject to change without notice (25.10.99)
1
B 128, B 121
General Specifications
Supply Specifications
Power ON time
Indication for
Power supply ON
≥ 200 ms
Power supply AC types
Installation cat. III (IEC 60664)
Rated operational voltage
Through pins 2 & 10
or pins 2 & 7
220
220 VAC ±15%,
45 to 65 Hz
120 VAC ±15%,
45 to 65 Hz
24 VAC ±15%,
45 to 65 Hz
≥ 10 ms
LED, red
Environment
Degree of protection
Pollution degree
Operating temperature
Storage temperature
120
024
IP 20 B
2 (IEC 60664)
-20° to +50°C (-4° to +122°F)
-50° to +85°C (-58° to +185°F)
Dropout tolerance
Rated insulation voltage
Weight
85 g
None
Rated transient protection volt. 4 kV (1.2/50 µs) @ 220 VAC
2.5 kV (1.2/50 µs) @ 120 VAC
Approval
UL, CSA
800 V (1.2/50 µs) @ 24 VAC
(line/neutral)
Power supply DC type
Rated operational voltage 724 24 VDC + 15/- 20% (pin 2 pos.)
Rated insulation voltage None
Rated transient protection volt. 800 V (1.2/50 µs)
Installation cat. III (IEC 60664)
Consumption
AC supply
DC supply
60 mA @ 50 Hz/70 mA @ 60 Hz
1 W
Mode of Operation
Wiring Diagrams
The relay operates immedi- B 121/B 128 monitor that
ately after power supply is power supply is applied. If
SPDT
8 pin
SPDT
11 pin
applied.
power supply is interrupted,
the relay starts e.g. an alarm
When power supply is inter- (battery driven) after the time
rupted, the time period starts period has expired.
and at the end of the set time
the relay releases.
Please note
B 128 and B 121 should not
If power supply is reapplied be operated by pulses shorter
before the relay releases, the than 500 ms.
time is reset and the relay
Power supply
B 128
Power supply
B 121
remains on.
Time Setting
Knob-adjustable on scale in
Accessories
Sockets◊
S 408, S 411
HF
SM 13
BB 4
Hold down spring◊
Mounting rack
Socket cover
seconds.
Potentiometer lock
PL 1
For further information refer "Accessories".
Operation Diagram
Power supply
Relay on
2
Specifications are subject to change without notice (25.10.99)
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