PRODUCT SHORT DESCRIPTION
JBL special-shaped aluminum parallel groove clamp for spanning 16-120 / 50-240mm² conductors, bimetal transition and branch tapping. Corrosion-resistant, low contact resistance, bolted connection.

PRODUCT DESCRIPTION

The JBL special-shaped (irregular) parallel groove clamp is an aluminum bolted connector used to join two parallel conductors or to tap a branch line from a main conductor. Its offset, stepped groove geometry accommodates a wide span of conductor sizes from 16-120 mm² up to 50-240 mm², including aluminum-to-aluminum and aluminum-to-copper transition with bimetal inserts. The clamp is manufactured from high-strength aluminum alloy with a smooth, precision-machined groove that maximizes contact area and keeps contact resistance low and stable over years of service.

Key Features
• Wide Conductor Span — Special stepped groove accepts 16-120 mm² and 50-240 mm² conductors in one clamp.
• Irregular / Offset Body — The shaped profile reaches parallel and slightly offset conductors and cross-line taps.
• Bimetal Capable — Optional copper-aluminum insert prevents galvanic corrosion in Cu-Al transitions.
• Low Contact Resistance — Large precision-machined contact area keeps joints cool under continuous load.
• High-Strength Alloy — Aluminum alloy body combines light weight with mechanical and thermal stability.
• Secure Bolted Grip — Galvanized or stainless bolts with washers provide a lasting, torque-controlled clamp.
• Anti-Corrosion Finish — Smooth treated surface resists oxidation in coastal and industrial environments.
• No Tool Heating — Designed for cold bolting, avoiding the need for hydraulic compression on site.

Specifications
• Model: JBL series special parallel groove
• Conductor range: 16-120 mm² / 50-240 mm²
• Body material: High-strength aluminum alloy
• Hardware: Hot-dip galvanized / stainless steel bolts
• Option: Bimetal copper-aluminum insert
• Connection: Bolted parallel / branch tap
• Standard: GB/T 2314 / IEC 61284 power fittings

Applications Overhead distribution line splicing and branch tapping, transformer lead connections, and copper-to-aluminum transition joints on LV and MV networks.