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2 Phase Moulded Case Circuit Breaker

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Product:	Views:4592 Phase Moulded Case Circuit Breaker
Unit price:	Negotiable
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Delivery date:	Since the payment date Days delivery
Valid until:	Long-term effective
Last updated:	2019-07-05 17:01

Details

1. Application Of Moulded Case Circuit Breaker

ZQM1 series moulded case circuit breaker is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 550 and 800V and used for circuit of AC 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1600A for infrequent changing over and starting of the motors. The products conforms to IEC60947-2 standard.

2. Main Technical Specification (Table1)

Type	Rated current (A)	Polenum-ber	Ratedinsui-atingvolt-age (V)	Rated operat-ingvolt-age (V)	Arcing- over distance (mm)	Ultimate short circuit breaking capacity (KA)	Servies short circuit breaking capacity (KA)	Operation perform - ance		Utiliza - tioncat - egory
Type	Rated current (A)	Polenum-ber	Ratedinsui-atingvolt-age (V)	Rated operat-ingvolt-age (V)	Arcing- over distance (mm)	Ultimate short circuit breaking capacity (KA)	Servies short circuit breaking capacity (KA)	Load	Unload	Utiliza - tioncat - egory
ZQM1-63L	(6),10 16,20 25 ,32 40,50 63	3, 4	500V	400V	0	25	18	1500	8500	A
ZQM1-63M	(6),10 16,20 25 ,32 40,50 63		500V		0	50	35
ZQM1-100L	(10),16 20,25 32,40 50,63 80,100		800V		0(≤50)	35	22
ZQM1-100M					0(≤50)	50	35
ZQM1-100H					0(≤50)	85	50	1000	7000
ZQM1-225L	100,125 160,180 200,225				≤50	35	22
ZQM1-225M					≤50	50	35
ZQM1-225H					≤50	85	50	1000	4000
ZQM1-400L	225,250 315,350 400				≤50	50	35
ZQM1-400M	225,250 315,350 400				≤100	65	42
ZQM1-630L	400,500 630				≤100	50	35
ZQM1-630M					≤100	65	42
ZQM1-630H					≤100	100	65
ZQM1-800M	630,700 800	3			≤100	75	50
ZQM1-800H	630,700 800				≤100	100	65
ZQM1-1250M	1000,1250				≤100	100	65
ZQM1-1250H	1000,1250				≤100	125	75
ZQM1-1600M	1600				≤100	150	80

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-lease 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 three poles.

3. 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 circuit breaker) and table 3 (motor protection circuit breaker).

Table 2 Of MCCB

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	10In±20%
63<In≤100	≥ 2	< 2	10In±20%
100≤In≤800	≥ 2	< 2	5In±20% 10In±20%

Table 3 Of MCCB

Rated current	Thermodynamic release (ambient temperature) land +40°C marine +45°C				Operating current of magnetic release (A)
Of release (A)	1.0In (cold state) non-trip time (h)	1.20In (heat state) trip time (h)	1.50In (heat state) trip time (h)	7.2In (cold state) trip time (h)	Operating current of magnetic release (A)
10 ≤ In ≤ 225	≥ 2	<2	≤ 4min	4s < Tp ≤ 10s	12In±20%
225 ≤ In ≤ 630	≥ 2	<2	≤ 8min	6s < Tp ≤ 20s	12In±20%

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