BQJ51 series explosion-proof star delta starter box (IIB) Scope of application:

1. Zone 1 and Zone 2 hazardous areas.
2. Class IIA and IIB explosive gas environment.

Product Features:
1. This product is suitable for infrequent starting and stopping of 3-55KW three-phase asynchronous motors.
2. Aluminum alloy or steel plate welded shell, surface sprayed with plastic.
3. Equipped with circuit breakers, AC contactors, time relays, thermal relays, current transformers, voltmeters, ammeters, transfer switches, and indicator lights.
4. Delay automatic control time relay (adjustable within 0-60 seconds).
5. Suitable for uninterrupted long-term work system or repeated short-term work system, the operating frequency under repeated short-term work system is 30 times/hour, and the interval between two consecutive starts is not less than 90 seconds.
6. It has functions such as overload, short circuit, and phase failure protection.
7. It can be customized according to user requirements.
8. Both steel pipes and cables can be used for wiring.
9. Aluminum alloy shell is used below 55kW, and steel plate welded shell is used above 55kW (including 55kW).

BQJ51 series explosion-proof star delta starter box (IIB) model meaning:



Main technical parameters:

BQJ51 series explosion-proof star delta starter box (IIB)
BQJ51 series explosion-proof star delta starter box (IIB)