FZRN21-12 Indoor AC High Voltage Vacuum Load Break switch 12KV LBS|Indoor LBS|MV Load Break Switch (LBS)|Products|JGGY Electrical.com

FZRN21-12 Indoor AC High Voltage Vacuum Load Break switch 12KV LBS

FZRN21 series AC and HV indoor vacuum load break switch, this product has a breaking capacity, safety and reliability, long life, can operate frequent, compact structure, small size, light weight, the basic no need to maintain.

Category: Switchgear & Medium Voltage LBS

Brand: JGGY Electric

Model: FZRN21-12/FZN21-12

Power: 12KV/ 630A

FOB Port: Ningbo/Shanghai

Terms of Pyament: Western Union,T/T,Paypal

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Product Description

FZN21-12/T630-20 and FZN21-12(R)D/T125-31.5 type Indoor AC high voltage load switch- fuse combination units appliances for three-phase AC 12kV, 50Hz power system, or with the complete power distribution equipment and loop-network switch cabinet , combined substation and other ancillary uses, is widely used in urban network construction and transformation engineering, industrial and mining enterprises, high-rise buildings and public facilities ,can be used as ring power supply unit or terminal equipment, play power distribution, control and protection. Technical performance of the products meet the IEC publication 60265-1/FDIS <<high voltage switches, Part 1: Rated voltages below 1kV over 52kV high voltage load switch>>, IEC60420<<High Voltage AC load switch – fuse combination units>>; and CB16926<<AC High-voltage load switch - fuse combination units>>, GB3804<<3-63kV AC high voltage switches>>requirement.

Breaking with rated current, overload current (FZRN21-12D/T125-31.5 can short-circuit breaking current) and to prevent equipment missing running ability to switch a visible fracture of isolation, with combined installed capacity of the ground with the relevant switches and electrical spring agencies, to remote control.

The use of environmental conditions

1.Air temperature: -25°C ~ +40°C;

2.Altitude: ≤1000m;

3.Relative humidity: daily average is not more than 95%,

4.Installation places: No fire, explosion hazard, serious filthy places.

5.Contamination level: II

Mainly technical parameters

No	Item		Unit	Value
1	Rated voltage		KV	12
2	Rated frequency		Hz	50
3	Rated current		A	630	1250
4	Rated insulation level	1min power frequency withstand voltage	KV	Arc-quenching chamber fracture 48
		(effective value)		Earth , phase 42, insulating fracture 48
		Lightning impulse withstand voltage (peak)		Earth , phase 75, insulating fracture 85
5	Rated dynamic current (peak)		KA	50	50
6	4S thermal current		KA	20	20
7	Rated power load breaking current		A	630	1250
8	Rated closed-loop breaking current		A	630	1250
9	Rated cable charge breaking current		A	10	10
10	Rated breaking no-load transformer capacity		KVA	1250
11	Rated breaking AC current		A	3150
12	Rated short-circuit closed current		KA	50
13	Rated current breaking times		times	2000
14	Mechanical life		times	10000
15	Permitted wear-thickness of vacuum arc-quenching chamber contact		mm	2
16	Manual operating torque		Nm	>200