3-phase JK27-X1-JK250

3-phase earthing device

Ref. SS 428 91 01, SS-EN 61230
Conductor clamp JK 27 is connected to ball bolt Ø 20, Ø 25, Ø 30, T-bolt, rail 1-25 mm, rope/pipe Ø 6-25 mm. To operate the clamp, insulating rods MGV, MDV/MSV and grip locators JGS are used.
The conductive parts of the clamp are made of aluminum bronze. Steel parts are made of stainless steel. The wire rope is connected to the clamp with cable lug and M8 (25-50mm2) / M12 (70-95 mm2) screw connection. For the 95 mm2 wire rope, the JFG 4 branch piece is used (see JK27-X-JK250).
The cable is made of highly flexible ESTPR-insulated copper conductor and is equipped with tight cable connections, which prevent moisture penetration into the cable. The sheath of the branch piece (JFG 4L) is made of insulating plastic.
Earth clamp JK 250 is used, among other things, on steel structures with a maximum thickness of 30 mm. 30 mm and is also approved for use on painted surfaces. The screw of this clamp is provided with insulation to prevent the passage of current.

3-phase JK27-X1-JK250

excl. donlina

E-number

No E-number available
Earthing connectors excl. wire rope
E-number
Type
Articulated clamp
Cable lugs/
Earth clamp
Donlin area
mm2
Märkström
max. kA/1s
Weight kg/st
JK27-X1-JK250 JK 27
JLA 34
25 – 70
16,0
4,7*

*Including cable connection for max. donlin area.

 

Earthing Cables for Earthing- and Short-circuiting devices

Type
Earthing Cable area

mm2
Rated
current
kA/1s
Weight
kg/m
ESTPR25 

25
5,7
0,3
ESTPR35 35
8,0
0,4
ESTPR50
50
11,5
0,5
ESTPR70 70
16,0
0,7
ESTPR95 95
21,0
1,0
ESTPR120 120
27,0
1,2
ESTPR150 150
34,0
1,5
ESTPR185 185
42,5
1,9