NA8 Air Circuit Breaker

• Frame size (A): 1600 , 2500, 4000, 7500

• Two kinds of breaking capacity: N, H (for 7500)

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

• Number of poles: 3 or 4 poles

• Mounting mode: draw-out type or fixed type

• Mode of connection: horizontal connection, vertical connection, mixed connection

Operating Conditions and Environmental Suitability

• NA8 products can operate normally at the following temperature. Electric and mechanical characteristic applicable for ambient temperature -5℃~+40℃ (certified), and also peripheral ambient temperature -45℃~+70℃ (M type ), -20℃~+70℃ (H type ).

• For specific derating factor, see P23. Storage conditions: Applicable for -45℃~+70℃.

• NA8 may resist against the following electromagnetic interference: EMI-generated overvoltage; Overvoltage caused by environmental disturbance or distribution system; Radio wave (radio, interphone, radar, etc.) Static discharge of terminal users.

• NA8 circuit breakers have successfully accredited through the EMC test specified in the following standards: IEC/ EN 60947-2 The above tests may ensure: no false tripping fault, tripping time not interrupted.

• Protection grade Front IP20 , other sides IP00.