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CMM1-800L

AC MCCB

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CMM1-800L

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Application

CMM1 series moulded case circuit breaker is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 500 and 800V and used for the circuit of AC 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1 600A for infrequently changing over and starting of the motors. The products conforms to IEC60947-2 standard.

Main Technical Specification

Type	Rated Rated	Rated	Rated insul-ating volt-age(V)	Rated operat-ing volt-age(V)	Arcing-ove distance(mm)	Ultimate short circuit breaking capacity (kA)	Service short circuit breaking capacity(kA)	Operation perform-ance		Utiliza-tion cat-egory
								Load	Unload
CMM1-63L	（6），10，16，20 ，25，32，40，50，63	3，4	500V	400V	0	25	18	1500	8500	A
CMM1-63M			800V		0	50	35
CMM1-125L	（10），16，20，25 ，32，40，50，63，80，100，125				0（≤50）	35	22
CMM1-125M					0（≤50）	50	35
CMM1-250L	100，125，160，180，200，225				≤50	35	22	1000	7000
CMM1-250M					≤50	50	35
CMM1-400L	225，250，315，350，400				≤50	50	35	1000	4000
CMM1-400M					≤100	65	42
CMM1-630L	400 500 600				≤100	50	35
CMM1-630M					≤100	65	42
CMM1-800M	630，700，800				≤100	75	50
CMM1-1250M	1000，1250				≤100	100 150	6 80
CMM1-1600M	1600				≤100

Note: 6A without thermal protection

The N-pole of four-poles breaker is sited at the right side of the product has four types:

Type A: Without current trip-release on N pole which making all the time, not closing and opening with the other three poles.

Type B: Without current trip-release on N pole which closing and opening with the other poles.

Type C: With current trip-release which closing and opening with the other three poles.

Type D: With current trip-release which making all the time not closing and opening with the other threepoles.

Protection Characteristic

The thermodynamic release of a circuit breaker provides the feature of inverse time-delay,while the magnetic release is the instantaneous operation as shown on table 2(distribution cir-cuit breaker) and table 3 (motor protection circuit breaker).

Rated current of release (A)	Thermodynamic release( ambient temperature land +40°C marine +45°C )		Operating current of magnetic release (A)
Rated current of release (A)	1.05In(cold state) Inoperative time(h)	1.30In(heat state) Operative time(h)	Operating current of magnetic release (A)
10≤In≤63	≥1	<1	10\|n+20%
63< In≤100	≥2	<2	10\|n+20%
100< In≤800	≥2	<2	5ln+20% 10ln+20%

Rated current of release(A)	Thermodynamic release(ambient temperature land+40℃ marine+45℃）				Poerating cirremt pf ,agmetoc release(A)
	1.0In(cold state)non-trip time(h)	1.20In(heat state)trip time(h)	1.50In(heat stater trip time(m)	7.2In(cold state)trip time(s)
10≤In≤250	≥2	<2	≤4 ≤8	4 < t≤10	12ln+20%
250< In < 630				6<t≤20