Fkn12 Fn12-12D630 12kv 33kv 630A Lbs Indoor High Voltage Load Break Switch

• Customization: Available
• Type: High-voltage
• Structure: Three-column Disconnector
• Model NO.: FKN12
• Installation: Indoor High-voltage
• Operation: Manual
• Number of Poles: Three Pole
• Structure of Operating: Manual
• Certification: ISO, ISO9001
• Brand: Sk
• Rated Current: 630A
• Rated Voltage: 12kv
• Rated Frequency: 50Hz
• Opening Time of Fuse Trigger: 30-40ms
• Opening Time of Tripper Trigger: 40-50ms
• Trademark: SK
• Origin: China
• HS Code: 8536909000
• Production Capacity: 5000

Product Description

Description:

FN12-12 3 poles indoor high voltage load switch with fuse holder & earthing

Application
It is used in the ring network city distribution and industrial equipment of 12KV and three-phase AC 50Hz to cortrol load and
short-circuit. Because the switch with fuse protecting transformer etc more reliably than circuit breaker. It is especialy
suitable for ring network clouble radial distribution and package substation.
Standard
a. GB3804-90 <<3-63KV AC H.V load switch>>.
b. GB16926-1997 <>(eqv, IEC62271-2002).
c. GB1995-89 <>.

Operating environmental conditions:
1.Altitude: ≤1000m
2.ambient air temperature: not higher than +40°C,not lower than-25°C
3.Relative humidity: daily mean is not more than 95%, monthly mean is not more than 90%
4.Earthquake intensity: not more than 8°
5.no fire, explosion hazard, chemical etching and intense vibration
6.Pollution grade: II
7. Ambient air shouldn't be polluted by corrosive or flammable gas and vapor.

 

NO.	Items		Unit	Data
				FN12-12D/630	FN12-12(R)D/630
1	Rated voltage		KV	12
2	Rated frequency		Hz	50
3	Rated Current		A	630	1250
4	Lightning impulse withstand voltage		KV	To earth and phase to phase 75, isolation fracture 85
5	1 min power frequency withstand voltage		KA	To earth and phase to phase 42, isolation fracture 48
6	Rated thermal stability current		KA	20(4s)
7	Rated dynamic current		KA	50
8	Rated dosing current (peak)		KA	50	50
9	Rated short circuit breaking current (Expected value)		KA		31.5
10	Maximum at critical breaking current		A2S	According to the fuse characteristic curve
11	Minimum breaking current		KA	According to the fuse characteristic curve
12	Rated transfer current		KA		1.5
13	Maximum breaking current (reference value)		KA	1.8
14	Breaking the capacity of the no-load transformer		KVA	1250
15	Rated cable charging current		A	10
16	Rated active load current breaking times		Times	>100
17	The impactor touches the load switch opening time		S		>0.06
18	Earthing switch thermal stability current		KA	20(2S)
19	Earthing switch thermal stability current (peak)		KA	50
20	Motor operating power supply voltage		V	AC DC 110, 220