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| 型号： | 84873222 |
| 厂商： | Crouzet USA |
| 文件页数： | 3/4页 |
| 文件大小： | 0K |
| 描述： | M3US 208-480VAC UN-OVER VOLTAGE |
| 其它有关文件： | Declaration of Conformity |
| 标准包装： | 1 |
| 系列： | * |
10/04/2014
www.crouzet.com
Operating principle
M3US
The relay monitors its own supply voltage. It controls :
- Undervoltage, adjustable from -20 to -2 % of Un (-12 to -2 % over the 3 x 208 V AC range and -17 % to -2 % for the 3 x 220 V AC range due to the minimum voltage 183 V AC)
- ?Overvoltage,?adjustable?from?+2?→+20?%??(+2?→+10?%??over?the?3?x?480?V?AC?range?due?to?the?maximum?voltage?528?V?AC).
An adjustable time delay from 0.3 to 30s can be used to disable the output relay during a transient fault.
In the event of a voltage fault, the relay opens at the end of the time delay set by the user.
In the event of phase failure, the relay opens instantaneously, without waiting for the end of the time delay.
When the unit is powered up with a measured fault, the relay stays open.
N o
Legend
Overvoltage
Hysteresis
Undervoltage
Phases L1, L2, L3
Relay
Over and undervoltage threshold delay
Dimensions (mm)
M3US
mm
Connections
M3US
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
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