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High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V

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High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V

Name: High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V
Brand: Metalwork
Price: 1 USD

High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V Manufactures

Brand Name : Metalwork

Model Number : 3AV5-12/1250-31.5

Certification : CE, ISO, CCC

Place of Origin : China

MOQ : 1 set

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 100 sets per month

Delivery Time : 20 days

Packaging Details : Plywooden package

Model : 3AV5-12/1250-31.5

Breaking Capacity : 31.5KA

Rated Voltage : 12KV

Rated Current : 1250A

Mechanical Life : 10000 times

Motor Voltage : DC/AC 110V 220V

Types : withdrawable, stationary, side-mounted

Warranty : 1 year

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3AV5-12/1250-31.5 Indoor High-voltage Vacuum Circuit Breaker

3AV5 series indoor AC high-voltage vacuum circuit breaker is an indoor switching equipment with three-phase AC 50HZ and rated voltage 12KV. There are three kinds, withdrawable type, stationary type and side-mounted type.

3AV5-12 indoor high-voltage vacuum circuit breaker adopts solid sealing insulation technology of ABB and SIEMENS. The vacuum arc extinguishing chamber and other parts of the primary circuit are sealed with epoxy resin material to form high insulation and high mechanical strength pole, which avoids the influence of harsh operating environment on the outer insulation of the primary circuit and realizes complete maintenance-free. Optimized spring operation mechanism, simple structure, stable performance, for industrial and mining enterprises, power plants and substations as electrical equipment control and protection, and suitable for frequent operation places.

3AV5 type side mounted vacuum circuit breaker adopts fixed installation, mainly used for fixed switchgear, such as ring network cabinet, box type substation or various non-standard power supply system. The main loop adopts solid sealing pole, miniaturized operation panel, and saves space in the cabinet.

High Voltage Vacuum Circuit Breaker Withdrawable Three Phase AC 50HZ 1250A 220V

Technical Parameters:

Items	Unit	Date
Rated voltage	KV	12
Rated impulse withstand voltage		75
Rated short-time power frequency withstand voltage (1min)		42
Rated frequency	Hz	50~60
Rated short-circuit breaking current	KA	20	25	31.5	40
Rated current	A	630 1000 1250	630 1000 1250 1600	1250 1600 2000 2500	1600 2000 2500 3150 4000
Rated short-time withstand current	KA	20	25	31.5	40
Rated peak tolerable current		50	63	80	100
Rated short-circuit making current (peak value)		50	63	80	100
Secondary circuit power frequency withstand voltage (1min)	V	2000
Rated operation sequence		O－0.3S－CO－180S－CO O－180S－CO－180S－CO (at 40KA)
Rated single/back-to-back capacitance bank breaking current Set breaking current	A	630/400 (40KA 800/400)
Rated short-circuit breaking current DC flow percentage		≤35%
Opening time (rated voltage)	ms	20-50
Closing time (rated voltage)	ms	30-70
Mechanical life	times	20000
Rated short-circuit breaking current breaking times	times	50 (40KA 30)
Allowable wear accumulate thickness of moving and static contacts	mm	3
Rated closing operating voltage	v	AC110/220 DC110/220
Rated opening operating voltage	v	AC110/220 DC110/220
Rated voltage of energy storage motor	v	AC110/220 DC110/220
Rated power of energy storage motor	w	80
Contact opening distance	mm	11±1
Contact stroke	mm	3.5±1
Contact bounce time	ms	≤2 (40KA ≤3)
Three - phase opening and closing heterogeneity	ms	≤2
Average closing speed *1	m/s	0.9-1.3
Average closing speed*2	m/s	0.4-0.8
Main circuit resistance	μΩ	≤50 (630A) ≤45 (1250A) ≤35 (1600-2000A) ≤25 (above 2500A)

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