Zn85 Series Indoor Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Withdrawable
• Structure: Vcb
• Model NO.: ZN85-40.5
• Poles Number: 3 Pole
• Type: Circuit Breaker
• Function: Short-Circuit
• Certification: ISO9001-2000, CCC
• Transport Package: Plywood
• Trademark: Talent
• Origin: China
• HS Code: 8535210000
• Production Capacity: 5000 Pieces/Year

Product Description

ZN85 Series Inoor Vacuum Circuit Breaker
Description
ZN85-40.5/T2000-31.5  type indoor high voltage vacuum circuit breaker for three-phase AC 50Hz, 40.5kv power system, for  industrial and mining enterprises, power plants and substations as the division and load current, overload current fault current perposes, and occasions for frequent operation. The circuit breaker arrangement with upper and lower structure, effectively reduce the depth of circuit b,reakers. And the use of composite structure, three-phase interrupter and associated charged body by the three independent phase separation of epoxy resin insulation casing, using a composite structure, the circuit breaker to meet the air under normal  operating conditions from the required distance and climb and effectively reduce the size of circuit breakers, electrical circuit interrupter, a leading and dynamic and static conductive connection installed in the insulating tube, so that the distance only 300mm. All main circuit electrical connection fixed to connect with high reliability.
Parameters
Technical Information

Techinical Specification
Rated voltage	KV				40.5
Rated short circuit breaking capacity 4sec.	KA	25		31.5		25	31.5
Rated current	A		1250			1600	2000 2500
Rated power frequency	Hz				50/60
Power frequency withstand voltage 50Hz 1 min,:	KV				95
Imulse withstand voltage 1.2/50μs:	KV				185
Peak withstand current	KA Peak.	63	80			63
Making capacity	KA	63	80			63
Operation sequence	times/h			0-0.3-CO-180S-CO
Mechanism endurance	cycles				10000

Overall and installation dimensions