Product Details

FZN25-11D 11kv Indoor Vacuum Circuit Breaker

1. Epoxy resin and silicone rubber 11kv vacuum circuit breaker
2. High strength, moisture-proof. anti-condensation 11kv vacuum circuit breaker

3. Suitable for hot and humid place 11kv vacuum circuit breaker

1. Prodcut Overview

1.1. Function: FZN25 series indoor AC high voltage vacuum load break switch is a controlling and protecting device for three phases AC 50HZ 24KV electrical power distribution system. Such vacuum load break switches are widely used in industrial and mining enterprises and power stations of big urban office buildings.

1.2.Standards: IEC 62271-105

1.3. Parameters: Rated voltage: 24kV.
Rated current: 630A .
Rated frequency: AC 50HZ.

2.Technical Data

Item		Unit	Data
Item		Unit	FZN25-24D /T630-20	FZRN25-24 D/125-31.5
Rated voltage		kV	24
Rated frequency		Hz	50
Rated current		A	630	125
Rated insulation level	1min power frequency withstand voltage	kV	arc-extinguishing chamber clearance: 65, between earth and pole: 65, isolation clearance: 79
Rated insulation level	Rated lightning impulse withstand voltage(peak value)	kV	between earth and pole: 125, isolation clearance: 145
Rated short time withstanding current		kA	20
Rated short-circuit duration time		S	4	/
Rated Peak withstand current		kA	50	/
Rated breaking current	Power load breaking current	A	630	/
	Close loop breaking current	A	630	/
	Breaking cable charge current	A	31.5	/
	Breaking no-load transformer capacity	kVA	1250	1250
	Rated short-circuit breaking current	kA	/	31.5
	Short-circuit breaking current	A	/	2000
Fuse type			/	SDLAJ-12,SFLAJ-12
Shocking input energy		J	/	3-5
Rated short-circuit making current		kA	50	80(expected)
Earthing switch rated withstand current(peak)		kA	50	50
Earthing switch 4S rated short-time withstand current		kA	20	20
Auxiliary circuit rated voltage		V	220:110	220:110
Mechanical life(grade M2)		times	20000

3. Product Show

4. Dimension and mounting