CIRCUIT BREAKER

CIRCUIT BREAKER

• Frame size (A): 1600, 2000, 3200, 4000, 6300

• Breaking capacity: N,S,H

• Rated operational voltage Ue (VAC): 380/400/415, 440/525/690

• Number of poles: 3P, 4P

• Installation method: draw-out type, fixed type

Operation conditions and environment adaptability

• Operation temperature:

The electrical and mechanical characteristics are applicable to the ambient temperature

of -5°C – +40°C. NXA can also operate in the ambient temperature of -45°C-+70°C (M type,

A type), -20°C-+70°C (P type, H type, CD-1), the derating factor is seen in P23-24.

• Storage conditions: apply to -45°C ~ +70°C

• NXA can resist the following electromagnetic interference

– Overvoltage generated by electromagnetic interference

– Overvoltage caused by environment interference or a power distributing system

– Electrostatic discharge of radio waves (radio, intercom, radar and the like)

• NXA has successfully passed the test for electromagnetic compatibility specified according to

the following standards (EMC) IEC/EN 60947-2

Annex F

The test can guarantee no false tripping and no interference on tripping time

• Protection grade:

Front IP 20, other side IP 00

Connection

● Rear connection

Horizontal connection, vertical connection

• Optional accessories

Interphase barrier

Lock

• Padlocks of “Making” and “Breaking” push button

• Position padlock (for locking the circuit breaker at disconnected position)

• Chassis padlock

• Door interlock: the circuit breaker is arranged at the connected or test part so as to

prohibit to open the door

Indication contact

Standard contact

Making and breaking indication contacts

Fault tripping indication contact

• Optional accessories

Position indication contact

Spring charged indication contact