China ZN63M(VCM1)-12 Manufacture and Factory

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ZN63M(VCM1)-12

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ZN63M(VCM1)-12

1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln

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Product Details

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ZN63M	-	12	P	M	630	-	25	HT	P210
Name		Rated voltage(KV)	Pole type	Operating mechanism	Rated current(A)		Rated short-circuit breaking current(KA)	Installation	Phase spacing
Indoor vacuum circuit breaker		12:12KV	No mark: Insulating cylinder type P Solid -sealing type	M: Insulating cylinder type permanent magne	630, 1250,1600, 2000,2500, 3150,4000		20,25,31.5,40	HT: Handcart FT: Fixed type	P150, P210, P275

Note:
The phase spacing of ZN63-12□M is usually P210mm, which is not marked on the model

Operating conditions

1. Ambient temperature: upper limit +40°C; lower limit -25°C.
2. Altitude: altitude not higher than 1000m.
3. Relative humidity: daily average value is not more than 95%, monthly average value is not more than 90%; saturated vapor pressure : The daily average value is not greater than 2.2kPa, and the monthly average value is not greater than 1.8kPa.
4. Earthquake intensity: less than 8.
5. The amplitude of electromagnetic interference induced in the secondary system does not exceed 1.6kV. This product complies with relevant national standards and The industry standard requires that it be installed in a place without fire, explosion hazard, corrosive gas and severe vibration.

Features

1. The arc extinguishing chamber and operating mechanism of the circuit breaker are arranged in a front-to-back configuration and connected as a single unit through a transmission mechanism.
2. The operating mechanism employs a permanent magnet mechanism and has functions for electrically closing and opening the circuit as well as manually emergency tripping.
3. The permanent magnet mechanism adopts a dual stable state form, characterized by intelligence, high reliability, long lifespan, and maintenance-free operation.
4. During the operation of the circuit breaker, the energy of the permanent magnet mechanism is transferred to the linkage mechanism,which then transmits it to the moving contact part.
5. The control circuit module exhibits high reliability and can withstand harsh conditions such as lightning strikes and surges during operation.
6. The energy storage module adopts capacitor energy storage, characterized by short energy storage time and long lifespan.
7. The mechanical lifespan is not less than 20,000 cycles.

Technical data

Technical datas are shown in Table 1

Item		Unit	Value
Rated voltage		kV	12
Rated insulation level	Rated lightning impulse withstand voltage (peak)		75
	1min power frequency withstand voltage		42
Rated current		A	630		630, 1250, 1600,	1250, 1600, 2000,
			1250		2000, 2500, 3150	2500, 3150, 4000
Rated short circuit breaking current(KA)		KA	20	25	31.5	40
Rated thermal stable current (effective value)		KA	20	25	31.5	40
Rated dynamicstable current (peak value)			50	63	80	100
Rated short-circuit making current (peak value)			50	63	80	100
Rated short-circuit breaking current breaking times		Times	30		30	30
Secondary circuit power frequency withstand current		V	2000
Rated operating sequence		/	Opening -0.3s - closing and opening -
			180s - closing and opening -180s - closing
			and opening -180s - closing and opening (40kA)
Rated thermal stability time		s	4
Rated single/back to back capacitor bank breaking current		A	630/400			800/400
Mechanical life		Times	20000			10000

The mechanical characteristic parameters are shown in Table 2

Item	Unit	Parameter
Contact travel	mm	11±1(Solid-sealing 9±1)
Contact overtravel	mm	3.0±0.5
Closing speed	m/s	0.6±0.2
Opening speed	m/s	1.0±0.2
Contact closing bounce time	ms	≤2
Three phase closing and opening asynchrony	ms	≤2
Closing time	ms	20≤t≤75
Opening time	ms	13≤t≤65
Permanent magnet drive power supply voltage	V	DC220
Energy storage time	s	＜10
Closing control voltage	V	AC/DC 110，AC/DC 220
Opening control voltage	V	AC/DC 110，AC/DC 220
Main circuit resistance	μΩ	≤45
Phase spacing	mm	150/210/275(40kA)