Fixed Indoor High-Voltage Vacuum Circuit Breaker

Deyan Electric is a professional supplier with rich manufacturing experience in industrial electrical appliances. The Fixed Indoor High-Voltage Vacuum Circuit Breaker designed for 12kV systems. Utilizing advanced vacuum interruption technology, it ensures reliable current breaking, minimal maintenance, and enhanced safety. Compact and versatile, it is ideal for power distribution and protection in various industrial and utility applications.

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Product Description

The Fixed Indoor Vacuum Circuit Breaker is a three-phase AC 50Hz, 12KV indoor switchgear. It is suitable for the control and protection of industrial enterprises, power plants, substations, and electrical facilities, and is suitable for frequent operation sites. The operating mechanism and the circuit breaker body are integrated. It can be designed as a fixed installation unit or be equipped with a dedicated actuating mechanism to form a drawer unit for use. The main circuit part of the Fixed Indoor Vacuum Circuit Breaker can adopt an integral solidified terminal pole to achieve miniaturization, high reliability, and maintenance-free of the circuit breaker. It can be equipped with KYN28-12(GZS) type medium-mounted drawer-type switch cabinets, and the fixed type can also be used in XGN fixed-type switch cabinets.

Product Parameter ( Specification )

Serial Number	Name		Unit	Data
1	Rated voltage		kV	12
2	Maximum operating voltage		KV	12
3	Rated current		A	630 1250	630 1250 1600 2000 2500 3150		1250 1600 2000 2500 3150 4000
4	Rated Short-Circuit Breaking Current (Rated Thermal Stability Current - RMS)		KA	20/25	31.5		40
5	Rated Short-Circuit Closing Current (Peak)		KA	50/63	80		100
6	Rated Peak Withstand Current (Rated Dynamic Stability Current - Peak)		KA	50/63	80		100
7	4S Rated Short-Circuit Withstand Current		KA	20/25	31.5		20/25
8	Rated Insulation Level	Working Voltage Withstand (Before and After Rated Breaking)/1 min Power Frequency Voltage Withstand	KV	Ground 42 (Break 48)
		Withstand Voltage (Before and After Rated Breaking) / Peak Rated Lightning Impulse Withstand Voltage		Ground 75 (Break 85)
9	Rated Thermal Stability Time		S	4
10	Rated Operating Sequence			Separate -0.3S - Combined -180S - Combined
11	Mechanical life		Second	20000
12	Rated Short-Circuit Breaking Current Number of Breaks		Second	50
13	Operating Mechanism Rated Closing Voltage (DC)		v	AC、DC 110,220
14	Operating Mechanism Rated Opening Voltage (DC)		v	AC、DC 110,220
15	Contact gap		mm	11±1
16	Overstroke (contact spring compression length)		mm	3.5±0.5
17	Three-phase closing and opening bounce time		ms	≤2
18	Contact bounce time during closing		ms	≤2
19	Average tripping speed		m/s	0.9~1.2
	Average closing speed		m/s	0.5-~0.8
20	Opening time	At the maximum operating voltage	S	≤0.05
21		At minimum operating voltage		≤0.08
22	Closing time		S	0.1
23	Resistance of each phase main circuit		μΩ	630 ≤50		1250 ≤ 45
24	Allowable cumulative wear thickness for moving and stationary contacts		mm	3

Product Feature And Application

Advanced Vacuum Interruption

Fixed & Compact Design

High Safety & Reliability

Spring Operating Mechanism

Versatile Application Range

◇ Compact secondary substations

◇ Small industrial and mining enterprises

◇ Wind power plants

◇ Hotels, shopping malls, office buildings, commercial centers, etc.

◇ C- Load switch unit

◇ D-Direct cable connection unit

◇ De- Direct cable connection unit with grounding switch

◇ F- Load switch-fuse combination unit

◇ V- Vacuum circuit breaker unit

Fixed Indoor High-Voltage Vacuum Circuit Breaker

Hot Tags: Fixed Indoor High-Voltage Vacuum Circuit Breaker, Manufacturer, Supplier, Custom, Wholesale

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Contact Info

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Address

No.60, Binhai South Second Road, Economic Development Zone, Yueqing City, Zhejiang Province, China
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Tel

+86-15088597733
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Email

sales@deyanele.com

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