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Start-up­ suppression­ for DC motors

The starting resistor of a DC motor has to be bypassed for regular operations, but no additional control voltage is available
Industry:
Energy generation
Series/Measures
Time
Product:
G2ZE20 400VDC
Data sheet:
Task:
The starting resistor of a DC motor has to be bypassed for regular operations, but no additional control voltage is available.
Solution
The on-delayed timing relay controls the bypass of the starting resistor of a DC motor and switches off the protective relay and, thus, the resistor after a defined period of time. The timing relay is operated using the motor operating voltage ranging from 150 to 440V DC.
Use/value:
- Timing relay supplied with power directly via the motor’s supply
- No additional costs for a power supply unit
- Space savings

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