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.
E-number
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 |