3-Phase Earthing Device
Ref. SS 428 91 01, EN 61230
Line clamp JK 27 is for connection to ball-bolts Ø 20, Ø 25, Ø 30, T-bolt, busbar 1-25 mm, line/tube Ø 6-25 mm. Insulating poles MGV, MDV/MSV and operating socket JGS are used to operate the line clamps.
The line clamps conducting parts are made of aluminium bronze. Steel components are made of stainless steel. The earthing cable is connected to the clamp with a cable lug, M8 (25-50 mm2/ M12 (70-95mm2). Connecting cluster JFG 4 (rubber insulated) is made of hot pressed electrolytic copper. The earthing cable, made of highly flexible ESTPR-insulated copper strands, has sealed cable connections, which prevent humidity from penetrating the cable.
Earth clamp JK 250 is used on steel constructions with a thickness up to 30 mm and is also approved for use on painted surfaces. The screw on this clamp is insulated.
E-nr:
|
E-No.
|
Type
|
Line Clamp
|
Cable shoe/
Earth Clamp
|
Earthing cable
area
mm2
|
Rated Current
max. kA/1s
|
Weight kg/unit
|
| E1658919 | JK27-X-JK250 | JK 27 |
JLA 34
|
25 – 95 |
21,0
|
4,7* |
*Incl. cable connection for max earthing cable 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 |
