The phase clamps for electrical installations of the transport networks are made in two types adjusted to the mounting conditions:
– special clamp for connection at the 3rd rail of the subway installations;
– classic reduced clamp CrTf type for the railway installations
The special clamp for connection at the 3rd rail has a casted body from cooper-aluminum alloy and provided with a tightening screw that has a ring for maneuvers made with the hook-bayonet adapter mounted in the coupling system of the insulating stick PMU-20-1-B/baS.
The classic reduced clamp CrTf type contains an extruded body made of alluminium alloy and a tightening screw with a bayonet coupling system.
Classic phase clamp for connection at the 3rd rail
Reduced phase clamp CrTf type for railway
|Nominal short-circuiting current for t = 1s Isc (kA)|
|Nominal peak currrent for t = 0,02 s Isd (kA)|
|Testing short-circuiting current for t = 1s (kA)|
Testing peak current for t = 0,02 s (kA)
232 x 123 x 50
|120 x 158 x 50|
Type of 3rd rail for electric traction
|Dimensions of the conductor on which it can be applied (mm)||–||Ø 5 – Ø 32|
Earthing cable length (m)