RING MAIN UNIT FZN25 12E load break switch

Product Overview

Description

RING MAIN UNIT FZN25-12E load break switch

 

 

Our FZN25-12D series alternating current vacuum contactor have adopted international prevalent up-down layout, convenient to use and maintain for the reason of small size, light weight and low noise, easily apt to make-up F-C circuit complete set of equipment. They are especially appropriate to frequent operation places to direct or distance connect or break the main circuit in the area of coal, petroleum, chemical industry, metallurgy, electric power, mechanical, transportation and so on.

 

Ambient condition

1 Ambient temperature: max +40°C min -15°C(conveyance under -30°C is allowed)

2 Altitude: ≤1000m

3 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%; daily average saturated vapor pressure ≤2.2*10^-3 MPa; monthly average value   ≤1.8*10^-3 MPa

4 Earthquake intensity: ≤8 degree

5 The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution

 

Order instruction

Complete model and order quantity of the product

Rated current, rated voltage, operation voltage  

Required accessory and quantity

Other requirement please contact with us directly

Main Technical Data
Rated voltage	Kv	7.2(12)
Rated current	A	160	250	400	630
Rated connect ability(100 times)	A	1600	2500	4000	6300
Rated breaking ability(25 times)	A	1280	2000	3200	5000
Ultimate breaking ability(3 times)	A	4000	4000	5000	6300
Rated short-time power frequency withstand voltage of fracture	kv	32(42)
Inter phase and over ground power frequency withstand voltage	kv	32(42)
Rated lighting impulse withstand voltage	kv	60(42)
Contact resistor of main circuit	μΩ	≤200
Rated operation frequency	times/h	600
Lock catch  operation frequency	times/h	60
Mechanical life	times	100
Lock catch life	times	30
Terminal pressure of contactor	N	>100
Rated contact stroke	mm	5±0.5(6±0.5)
Over travel	mm	1.5±0.5
Weight	kg	25(30)

 

 

 

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Different kinds of circuit breakers of our company