Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf

Shop our high-quality Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf. Manufactured in our factory for reliable performance.
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PRODUCTS DETAILS

Basic Info.

Model NO.
FN18-12DR
Contact Type
as Specification
Detection Method
as Specification
Pole
3
Rated Continuous Current
as Specification
Number of Switch
as Specification
Brand
Liyond
Certification
ISO9001, GB
Product Name
Fn18 Load Break Switch
Voltage Level
Medium Voltage
Rated Current
630A
Application
High Voltage Switchgear
OEM
Accept
Transport Package
Standard Export Packaging
Specification
as specification
Trademark
Liyond
Origin
China

Packaging & Delivery

Package Size
100.00cm * 100.00cm * 100.00cm
Package Gross Weight
40.000kg

Product Description

Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf



 

FN18 12kV 3 Phase Gang Operated Air Load Break Switch With Earthing Device And Fuse Switch Nalf 

Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf

FN18 is a general purpose, three-pole, load break switch that offers switchgear owners and assemblers the advantages of an advanced interrupting technology and proven, dependable performance in a compact design. The switch is available to switchgear assemblers as a building block for metal-enclosed and pad-mounted switchgear applications in ratings from 12-40.5 kV.
The standard FN18 switch includes a heavy-duty steel frame with stand-off insulators, a unique puffer-type arc extinguishing system, an operating mechanism and current-carrying components, including blade-type interrupters with cast hinges and jaw connectors.
Optional accessories and features include a variety of operating handles, a motor operator, auxiliary switches, a shunt trip device, fuse bases, mechanical fuse tripping, grounding switches, mechanical door interlocking and key interlocking.

FN18 series indoor high-voltage load switch has the advantages of easy design, operation, compact structure, small volume, full function, light weight, fast breaking and closing speed and high reliability. It is suitable for AC 50Hz, rated voltage 12kV, 24kV, rated current 630A and three-phase distribution system, especially for city network construction and renovation projects, high-rise buildings, ring network power supply of public facilities, and is an ideal product for box-type substation and transformer protection.

Technical parameter
 

Rated voltage Unit 12kV 17.5kV 24kV 36kV 40.5kV
Rated current A 400 630 1250 400 630 1250 400 630 1250 630 800 1000 630 800 1000
Max. rated current A 400 630 1250 400 630 1250 400 630 1250 630 800 800 630 800 800
Short circuit making capacity KA peak 67 50 50 50 50
Peak withstand current KA peak 82 82 82 66 66
Short time current 1 sec. KA eff

31.5

25

20

31.5

25

20

31.5

25

20

31.5

25

31.5

25

31.5

25

25

25

16

25

25

16

31.5

25

16

25 25 25 25 25 25
2 sec.
3 sec.
Mainly active load breaking capacity 21 (test duty 1 and, IEC 60265-1( 265)) A 400 630 1250 400 630 1250 400 630 1250 630 800 630 800 630 800
Mainly capacitive breaking capacity (test duty 4, IEC 60265-1 (IEC 265)) A 150 45 80 50 50
Mainly inductive breaking capacity cosφ=0.15 A 16 16 16 16 16
Max. breaking capacity in co-operation with fuses IEC 62271-105(IEC 420 1990-11) A 1600 1600   1600 1600   900 900   300 300 300 300 300 300

Power frequency withstand voltage 50 Hz 1 min.

-to earth and between poles

-across isolating distance

kV

42

45

45

60

55

70

80

88

95

120

Impulse withstand voltage 1.2/50 μs

- to earth and between poles

- across isolating distance

kV

75

85

95

110

125

145

170

195

190

220

Pole distance mm 150, 170, 210 170, 210 170, 235, 275 360 360

Max. operating torque at:

-closing K/A mech.

-opening K/A mech.

Nm 115-120 Nm
K-mech.120 Nm/A-mech. 3Nm
80-100 Nm
K-mech.80-100 Nm
Operating angle on the shaft degree 130 120
Opening time ms 40-60 60



Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf

Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf
Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf

 

 

Structure

Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf

 

Fn18 12kv 3 Phase Gang Operated Air Load Break Switch with Earthing Device and Fuse Switch Nalf

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