Zw43-12g 12kv 630A Outdoor High Voltage Vacuum Circuit Breaker Switchgear Autoreclose Circuit-Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Model NO.: ZW43
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: ISO9001-2000, CE, CCC
• Rated Frequency: 50/60Hz
• Rated Voltage: 12kv
• Rated Currrent: 630-1250A
• Rated Short Circuit Breaking Current: 16-20ka
• Rated Insulation Level: 42-75kv
• Rated Short Circuit Making Current: 40-50ka
• Rated Operation Sequence: 0-0.3s-Co-180-Co
• Mechanical Life: 10000 Times
• Rated Peak Withstand Current: 40-50ka
• Rated Short Time Withstand Current: 16-20ka
• Rated Short Circuit Duration: 4s
• Weight: 90kg
• Transport Package: Wooden Box Shipping
• Specification: 806*223*695mm
• Trademark: CNKC
• Origin: China
• Production Capacity: 2000PCS/Monthly

Product Description

Product Description

ZW43-12G outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with three-phase AC 50Hz and rated voltage of 12KV. The switch is mainly used as a substation 10KV outgoing switch and a 10KV three-phase AC power system as a line protection switch for dividing and combining load current, breaking overload current and short-circuit current.
The circuit breaker conforms to technical standards such as GB1984-2003 (high voltage AC circuit breaker), DL/T402-2007 (high voltage AC circuit breaker ordering technical conditions) and DL/T403-2000 (12KV-40.5 high voltage vacuum circuit breaker ordering technical conditions).

Model Description



Product technical parameters and external dimensions



Installation renderings 



Product structure features 
Three-phase pillar type fully enclosed structure with high sealing performance:
1. The breaking performance is stable and reliable, there is no danger of burning and explosion, maintenance-free, small size, light weight and long service life.
2. It has strong moisture-proof and anti-condensation properties, especially suitable for use in cold or humid areas.
3. Imported materials have good insulation performance, high temperature resistance, UV resistance and aging resistance.
Efficient and reliable miniaturized spring operating mechanism:
1. The power of the energy storage motor is small, the energy consumption of opening and closing is low, the mechanism transmission adopts the direct transmission mode, the number of parts is small, and the reliability is high.
2. The operating mechanism is placed in a sealed box, which can effectively prevent corrosion and improve the reliability of the mechanism.
Convenient and flexible control and free combination performance:
1. Manual opening or electric opening and closing and remote control operation can be used.
2. It can be matched with intelligent controller to realize power distribution automation, or combined with recloser controller to form automatic recloser and sectionalizer.
3. Two-phase or three-phase current transformers can be installed for over-current or short-circuit protection.
4. It can provide the current acquisition signal for the intelligent controller, and can install the current transformer for metering according to the user's requirements.
5. The three-phase linkage isolating switch can be taken out, with the anti-mistake interlocking device, and the arrester pillar insulator can be connected, which is convenient for maintenance.



Environment condition

1. Ambient air temperature: -5~+40 and the average temperature should not exceed +35 in 24h.
2. Install and use indoors. Altitude above sea level for operation site should not exceed 2000M.
3. Relative humidity should not exceed 50% at max temperature +40. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20. But in view of the temperature change, it is possible that moderate dews will produce casually.
4. Installation gradient not exceed 5.
5. Install in the places without fierce vibration and shock and the sites insufficient to erode the electrical components.
6. Any specific requirement, consult with manufactory.

Product details


Products real shot

A corner of the production workshop


Product packaging



Product application case