Swtich Disconnector NDW1G Series Swtich Disconnector AC 400V/690V; DC 1000V

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Product Description:


· Standard: IEC60947-3:2005

· Certificates: TÜV, CE, CCC, CB, DIN

· Rated voltage: AC 400V/690V; DC 1000V

· Rated current: 400A~6300A

· Number of poles: 3, 4

· Rated short-circuit making capacity Icm: 84kA~143kA (@AC 400V/690V); 50kA~85kA (@DC 1000V)

· Rated short-time withstand current Icw (1s): 50kA~100kA (AC 400V); 40kA~75kA (AC 690V)

· Break-time: ≤30ms;  Closing time: ≤60ms

· Installation type: Fixed type; Drawout type

· Mechanical Endurance: 20000 times (for NDW1G-2000, NDW1G-3200)

10000 times (for NDW1G-3200 4000A, NDW1G-6300).

· Electrical Accessories: Auxiliary Contact, Shunt Release, Closing Release, Undervoltage Release, Motor Operator for Electrical Charging



· High breaking capacity and zero arc.

· Compact contacts system, separate arcing chamber, more reliable operation.

· Various configuration of 3-pole and 4-pole, fixed type and drawout type, vertical wiring and horizontal wiring, multi-choice.

· Switch disconnector can be supplied from both the top and the bottom.

· Reliable interlock and insulation protection, high safety performance.

· Module structure, extendable with various accessories.

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Q:What is the capacity of the circuit breaker
the maximum short-circuit current of the circuit breaker can ensure the breaking current is the rated breaking current.
Q:Circuit breaker main circuit control power, how to wiring?
Otherwise you should use a larger capacity circuit breaker or technical transformation, reduce the installation of short-circuit capacity. Or on the circuit breaker capacity transformation
Q:How to switch from the circuit breaker switch button, the difference is short circuit protection or overload protection?
It acts as a knife switch. Fuse thermal relay and other electrical appliances
Q:Is the zero line going through the circuit breaker?
Three-phase four-wire zero line is absolutely not allowed to go through the circuit breaker, because the zero line is broken, the line of all 220V appliances will withstand 380V line voltage and burned.
Q:The specific function and operation mode of the auxiliary switch on the circuit breaker switch
circuit breakers and disconnectors of the electrical latch circuit and all low-voltage circuit.
Q:Where will the circuit breaker auxiliary contacts be used? ,
Molded case circuit breaker is the grounding wire terminal contact, interrupter, release and operating mechanism are installed in a plastic shell,
Q:How is the total switch breaker in the distribution box correctly
such as leakage or physical impact is achieved through the sensing element to its leakage or electric shock leakage
Q:Frame circuit breaker, molded case circuit breaker difference
and they usually buy some of the experience to sum up, here that under the molded case circuit breaker and Frame circuit breaker difference between the two,
Q:The difference between air switch and circuit breaker
So the air circuit breaker can also fault in the state (load short circuit, load over current, low voltage, etc.) cut off the electrical circuit
Q:How is the circuit breaker different from the air circuit breaker?
can not turn on the current, you can disconnect the short-circuit current below the current (by fuse).

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