YCW1 se「ies intelligent air circuit breakers (hereinafte「called ACB) are applied for the netwo「K circuit of AC SOHz, rated voltage 400V, 690V and rated current between 630A and 6300A. Mainly used fo「distributing energy and protecting the circuit and power supply device against short-circuit, undervoltage, single-phase ground fault, etc. The ACB has intelligent protection function and the key parts adopt intelligent release. The release can make the accurate selective protection, which can avoid cutting off the power and improve the reliability of power supply. The products conform with IEC60947-1,IEC60947-2 standards.
Pole number 3-default, 4 4 pole
Installation Fixed type-horizontal, vertical Draw out type ho「izonal, vertical Note: 2000 type have vertical wiring, others are horizontal wiring
Control unit L type protection of overload long time delay, short circuit short time delay, short circuit instantaneous and function of current flash columns instruction. M type protection of ove「load long time delay, short circuit short time delay, short circuit instantaneous, earth fault and function of digital current display, and self-diagnosis, fault memory. H type protection of overload long time delay, sho「t circuit short time delay, short circuit instantaneous, earth fault and function of digital cu「rent display, and self-diagnosis, fault memory and load monitoring (communication)
Common use accesso「y Shunt release-AC230V, AC400V, DC220V Und E 「voltage release-AC230V, AC400V, undervoltage instantaneous, unde「voltage time-delay Release (close) magnetic iron AC230V, AC400V, DC220V Elect「ic operation mechanism-AC230V, AC400V, DC110V, DC220V Auxiliary switch standard type (4a4b), special type (SaSb, 6a6b) Note: a-normal open, b-no「mal close
Optional accessory Mechanical inter lock: one circuit breaker (1 lock+ 1 key) two circuit b「eake「（steel cable inter lock, connecting rod inter lock, 21ock+ 1 key) three circuit breakers (31ocks+2keys, connecting 「od inter lock) Automatic power transfer system Current transformer connected with neutral lead