Specifications CM1L-225/4300B
Number of poles: 3P, 4P Rated frequency: 50HZ
Rated insulation voltage: 400V-690V Rated current of release: 200A 400A
Product Certification: ISO9001 Installation: Fixed
Speed: ordinary type arc extinguishing medium: air type
Rated current: 200A
Features: Contact system
Each phase contact is mounted in insulated cell. Contact system is structured with multi-chip contact in parallel, reducing the inertia of the contact system and ensuring high breaking capacity of the circuit breaker.
Operating mechanism
Installed in the center of the circuit breaker, isolated from the main circuit; circuit breaker closing operation is controlled by the energy-storage spring release mechanism, with fast closing speed. The operating mechanism has both electric and manual modes for energy storage for closing and breaking.
All accessories are universal to all series.
Drawer pedestal
Three working positions of circuit breaker can be achieved by shaking the handles on the beam at the lower part of the drawer pedestal (with position indicator beside the handle);
“Connected” position: the main circuit and the secondary circuit are connected, then the isolator is opened;
“Test” position: the main circuit is disconnected and separated by an insulating spacer, only the secondary circuit is switched on for necessary action test;
“Isolated” position: the main circuit and the secondary circuit are both disconnected, the isolator is closed at this time;
Drawer-type circuit breaker has reliable mechanical interlock device, only in the positions of “connected” and “test” can the circuit breaker be closed;
The circuit breaker has a total of 47 secondary circuit terminals;
Drawer-type circuit breakers with same rated current (including drawer and drawer pedestal ) are interchangeable.
Product description: Changshu circuit breaker is mainly installed in the low-voltage distribution cabinet as the main switch to control and protect the distribution network, its technical performance has reached the international advanced level of similar products in the nineties, meeting the standard of IEC947-2, GB14048.2 “l(fā)ow-voltage circuit breaker”.
Service conditions of CM1L-225/4300B
Ambient air temperature: -5 °C ~ +40 °C, and the 24h average does not exceed +35 ° C (excluding special orders);
The altitude of installation site does not exceed 2000m;
Air relative humidity does not exceed 50% at maximum temperature of +40 °C; higher relative humidity is allowed at lower temperatures, the monthly average minimum temperature of the wettest month does not exceed +25 °C, and the monthly average maximum relative humidity shall be less than 90%, taking into account the condensation on the product surface due to temperature changes;
Pollution level: Level 3