
Copper & Brass Jointing Clamp — WCJB Series
WCJB Brass & copper Jointing Clamp Clamp for mechanical and electrical connection of conductors in power distribution systems.
Available in high-conductivity copper (T2) or brass alloy for corrosion resistance and mechanical strength.
Designed with twin bolts for secure clamping and consistent contact pressure.
Suitable for copper or tinned conductors from 16–240 mm²
Overview — WCJB Copper & Brass Jointing Clamp
The WCJB Series is designed for jointing and connecting copper conductors in
distribution networks, switchgear, and grounding systems. It uses a heavy-duty clamping structure
with serrated grooves for secure grip and stable conductivity. The series is offered in two
material versions: pure copper (T2) for maximum electrical performance and
brass for enhanced corrosion resistance in harsh environments.
Material: T2 Copper or Brass Alloy |
Finish: Natural / Tin-plated / Nickel-plated optional |
Fasteners: Steel bolts with corrosion-resistant coating |
Conductor Range: 16 mm² – 240 mm²
Dimensional Data
| Type | Conductor (mm²) | L | L1 | B | B1 | H | H1 | D | M |
|---|---|---|---|---|---|---|---|---|---|
| WCJB-1 | 16–25 | 39.5 | 15 | 25 | 16.5 | 13 | 13 | 8.5 | 5 |
| WCJB-2 | 16–25 | 45 | 15 | 22 | 18 | 13 | 13 | 8.8 | 5 |
| WCJB-3 | 25–35 | 52.5 | 15 | 24.5 | 21.2 | 13.5 | 13.5 | 10.5 | 5 |
| WCJB-4 | 50–70 | 61 | 21 | 31 | 23 | 18.5 | 18.5 | 10.5 | 6 |
| WCJB-5 | 70–95 | 69 | 24 | 35 | 23.5 | 20 | 20 | 10.5 | 6 |
| WCJB-6 | 95–120 | 74 | 20.5 | 42 | 28.5 | 22.5 | 22.5 | 13.5 | 7 |
| WCJB-7 | 120–150 | 73.5 | 30 | 41 | 27 | 24 | 24 | 13.5 | 8 |
| WCJB-8 | 150–185 | 76 | 30 | 42 | 28 | 24.5 | 24.5 | 13.5 | 8 |
| WCJB-9 | 185–240 | 80 | 32 | 44 | 30 | 25 | 25 | 13.5 | 8 |
Application & Features
- Used for connecting or branching copper conductors in substations, busbars, and grounding networks.
- Available in brass version for outdoor or corrosive environments.
- Dual-bolt tightening design ensures uniform contact pressure and vibration resistance.
- Meets IEC 61238-1 mechanical connector standard.




