nader NDW3 Series Manual page 134

7.3 Electrical wiring diagram of voltage-check closing device
Power
Source
Check-for-voltage Closing Device
1) 6, 7 - The voltage-check closing device needs to monitor the status of the circuit breaker or disconnect the
contact output function with the circuit breaker. Please note that voltage-check module 6 and 7 need to
connect to the passive normally-closed contact of the circuit breaker;
2) 12 & 13 and 14 & 15 - Select one of the dedicated under-voltage release controlled by the voltage-check
closing device, dedicated photovoltaic under-voltage (no-voltage) release (adjustable within 0-10s) and signal
unit function;
3) 33, 34 - The customer may connect to the power supply for voltage-check closing device or that for normal
under-voltage release based on the actual need (but only AC220V/230V and AC380V/AC400V are allowed);
4) 37, 38 - When the voltage-check closing device function is selected, the power supply of the closed
electromagnet is 37 and 38. Rotate the closing voltage knob of the voltage-check closing device to non-OFF
position, the closed electromagnet will be automatically controlled by the voltage-check closing device;
connecting to wire a-b is not recommended;
5) To separately and manually control the closed electromagnet, rotate the closing voltage knob of the
voltage-check closing device to OFF position, and wire a-b (including SB2) needs to be connected;
6) If the voltage-check closing device is not selected, the power supply of the closed electromagnet is still 37
and 38, and the wire should be connected according to the electrical wiring diagram of the air circuit breaker;
7) 6, 7, 12, 13, 14, 15 and 38 are connected to wire number of the secondary terminal via a wiring harness;
8) Dotted lines are connected by users, while solid lines are within the product.
Internal & confidential file
File No.:NDT2920202
Check-for-voltage
Wiring Harness
(Optional)
第 134 页 共 149 页
Secondary
Terminals of
Circuit Breaker
File Version:4
Power
Source