VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker

The VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker offers reliable circuit protection for 24kV power systems. Designed for side-mounted installation, this VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker features a 1600A rated current, high breaking capacity, and robust performance in diverse conditions. It operates reliably in temperatures from -15°C to +40°C, at altitudes up to 2000m, and in high humidity environments. Ideal for industrial and grid applications, the VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker ensures safety with minimal maintenance.

product details

Type Designation

1	Vacuum Circuit Breaker (VCB)
2	Design Number
3	Rated Voltage (kV)
4	Side-mounted
5	Rated Current (A)
6	Rated Short-circuit Breaking Current (kA)

Normal use environment

◆Ambient air temperature: upper limit +40°C, lower limit -15°C;

◆Daily average relative humidity of air not more than 95%, monthly average not more than 90%;

◆Altitude: ≤2000m;

◆Seismic intensity: not exceeding 8 degrees;

◆Locations without fire, explosion hazard, severe pollution, chemical corrosion, and violent vibration.

Note: If clients have any special requirements, they may propose them when placing orders, and we will do our utmost to meet their needs.

product Display

VS1-12C Indoor HV Vacuum Circuit Breaker (1)

VS1-12C Indoor HV Vacuum Circuit Breaker (2)

Technical Parameters

Item		Unit	Parameter
Rated Voltage		kV	12
Maximum Operating Voltage		kV	12
Rated Current		A	630	1250		1600
Rated Short-Circuit Breaking Current		kA	20	25		31.5
Rated Short-Circuit Making Current		kA	50	63		80
Rated Peak Withstand Current		kA	50	63		80
4S Rated Short-Time Withstand Voltage		kA	20	25		31.5
Rated Operating Sequence			O-0.3s-CO-180s-CO
Rated Insulation Level	Power-Frequency Withstand Voltage(Before and After Rated Breaking)	kV	42(section 48)
	Impulse Withstand Voltage (Before and After Rated Breaking)		75(section 85)
Mechanical Life		time	10000
Rated Short-Circuit Current Breaking Operations		time	50
Operating Mechanism Rated Closing Voltage (DC)		V	110,220
Operating Mechanism Rated Opening Voltage (DC)		V	110,200
Contact Gap		mm	11±1
Over-Travel(Contact Spring Compression Length)		mm	4.5±0.5
Three-Phase Contact Bounce Time (During Opening/Closing)		ms	≤2
Contact Bounce Time During Closing		ms	≤2
Average Opening Speed		m/s	0.9±1.2
Average Closing Speed		m/s	0.4±0.8
Opening time	At Maximum Operating Voltage	s	≤0.05
	At Minimum Operating Voltage		≤0.08
Colsing time		s	0.1
Resistance of each main circuit		uΩ	60		50