CNC Ycw3-2000 Series Air Circuit Breaker

Product Description

CNC Ycw3-2000 Series Air Circuit Breaker Product Description
YCW3 series air circuit breaker(hereinafter called ACB) is suitable for the circuit of AC 50Hz/60Hz with rated service voltage 400V, 690V and rated service current between 200A and 6300A. It is mainly used to distribute electric energy and protect circuits and electric equipment against over-load, under-voltage, short-circuit and single- phase earthing fault.
With intelligent and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure. The breaker is applicable for power stations, factories, mines(for 690V) and modern high-buildings, especially for the distribution system of intelligentized building.
Standard: IEC/EN 60947-2.
Breaking capacity

Rated current In(A)		1600	2000	3200	4000	6300
Rated ultimate short circuit breaking capacity Icu(kA)	400/415V	65	80	100	120	135
	660/690V	50	65	85	85	100
Rated service short circuit breaking capacity Ics(kA)	400/415V	55	65	80	100	135
	660/690V	42	65	70	85	100
Rated short time withstand current Icw.1s(kA)	400/415V	50	65	80	100	135
	660/690V	42	65	70	85	100
Rated short circuit making and breaking capacity Icm(kA)	400/415V	110	176	220	264	297
	660/690V	77	143	154	187	220
Electric life		8000	8000	8000	6000	1500
Mechanical life (Maintenance)		30000	30000	20000	20000	5000
Mechanical life (Non-maintenance)		20000	15000	12500	10000	2500
Dimension(mm) W×H×L
Drawout type	3P	285×345×351	375×451×432	435×486×439	435×486×439	930×486×439
	4P	352×345×351	470×451×432	550×486×439	550×486×439	/
Fixed type	3P	254×251×320	362×362×395	426×378×395	426×378×395	/
	4P	324×251×320	457×362×395	537×378×395	537×378×395	/

Note: 6300A only has 3P drawout type
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