Plum Blossom Thread Clip

Plum Blossom Thread Clamps (WCJB/WCJC/JTL Series) are heavy-duty bolted connectors shaped like a plum blossom, designed for connecting copper/aluminum cables to transformer, switchgear, and substation equipment terminals. They feature multi-bolt design for uniform pressure, low contact resistance, and easy field installation. Widely used in LV/MV power distribution systems.

Key Features

• ✅ Plum Blossom Multi-Bolt Design: Even clamping force, reliable connection, no loose wires

• ✅ High-Grade Material: WCJB (pure copper/tin-plated), WCJC (H62 brass), JTL (copper-aluminum transition)

• ✅ Superior Conductivity: Low contact resistance, minimal power loss, high current carrying capacity

• ✅ Anti-Corrosion Finish: Tin-plated copper/brass for oxidation and rust resistance

• ✅ Wide Conductor Range: 16–400 mm² for copper, aluminum, or ACSR conductors

• ✅ Easy Installation: Bolted design, reusable, no special tools required

• ✅ High Mechanical Strength: Withstands vibration and thermal cycling in outdoor environments

Technical Specifications

• Material: Pure Copper (WCJB), H62 Brass (WCJC), Copper-Aluminum (JTL)

• Surface Finish: Tin-plated (anti-corrosion)

• Voltage Rating: ≤ 35kV (Medium Voltage)

• Temperature Range: -40°C to 125°C

• Standard: GB/T 2314, DL/T 759, IEC 61238

• Conductor Type: Copper, Aluminum, LGJ/ACSR (steel-reinforced aluminum)

• Installation: Bolted connection (torque wrench recommended)

• Application: Indoor/Outdoor, Transformer, Switchgear, Substation

Applications

• Transformer low-voltage terminal connections

• Switchgear and distribution panel cable terminations

• Substation busbar to equipment tapping

• Industrial power plant and renewable energy systems

• Outdoor electrical distribution networks and grounding systems

 Product Specifications

• Product Name: Plum Blossom Thread Clip / WCJB/WCJC/JTL Series

• Model: WCJB-1/2/3/4/5/6; WCJC series; JTL series

• Material: Pure Copper / H62 Brass / Copper-Aluminum

• Conductor Range: 16–400 mm² (Copper/Aluminum/LGJ/ACSR)

• Voltage Rating: ≤ 35kV

• Standard: GB/T 2314, DL/T 759

• Type: Bolted (Plum Blossom Shape)

• Finish: Tin-plated (Anti-corrosion)

• Application: Transformer, Switchgear, Substation, Power Distribution

Tags / Keywords

Plum blossom thread clip, WCJB copper clamp, WCJC brass connector, JTL copper-aluminum clamp, bolted wire terminal, transformer cable clamp, substation equipment connector, tin-plated copper fitting, power line hardware, plum blossom wire clamp

Collection / Category

• Main Category: Power Line Hardware

• Subcategory: Equipment Connectors & Terminals

• Optional: Copper/Brass Fittings, Substation Hardware