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LC-40HDM - Lenco LC-40HD Male Welding Cable Connector (3/0 - 4/0 Capacity)

Packaging: 1 per each
$18.50/ea $13.21/1 per each only $13.21/eaSave 29%

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OVERVIEW

Heavy-Duty Power Transmission for Industrial Welding

The Lenco LC-40HD Male Cable Connector is a premium-grade welding accessory engineered for high-amperage applications requiring robust power transmission. Designed specifically for heavy-duty usage, this connector accommodates large-gauge welding cables ranging from 3/0 to 4/0 (approximately 70mm² to 95mm²). It features a substantial amperage rating of 500 Amps, ensuring it can handle the thermal and electrical stresses of continuous industrial welding operations without overheating or degrading.

At the core of the LC-40HD is a precision-machined brass alloy body that utilizes a cam-action design. This mechanism ensures a tight, vibration-resistant lock when mated with a corresponding female connector, minimizing electrical resistance and voltage drop across the connection. The cable is secured within the connector body using a single oval-point screw system, which provides a strong mechanical bond and excellent electrical contact. A copper shim is typically included to protect the wire strands from damage during tightening, ensuring maximum conductivity.

The external housing is crafted from a special high-impact, heat-resistant compound that offers superior protection against the harsh environment of a welding shop. It is resistant to oil, grease, solvents, and abrasion, ensuring long service life even in rugged conditions. The insulator fits snugly over the metal body, preventing accidental arcing and protecting the operator from electrical shock. This connector is fully compatible with other Lenco-style LC-40 connectors, making it a versatile choice for extending leads or repairing equipment in mixed-fleet environments.

Additional Information
Cable Size:3/0 to 4/0 AWG
Receptacle Type:Male
Packaging Description:1 per each
Amperage Capacity:500A
Connection Style:Cam Action
Material:Brass Alloy, Rubber
Cable Connection:Single Oval Point Screw

INCLUDED

  • 1 x Lenco LC-40HD Male Cable Connector Body
  • 1 x Heavy Duty Insulator Cover
  • 1 x Oval Point Set Screw
  • 1 x Copper Shim

APPLICATIONS

  • Heavy industrial fabrication
  • Shipyards and railcar manufacturing
  • Structural steel erection
  • Extension of heavy-gauge welding leads (3/0 - 4/0)
  • Equipment repair and maintenance
  • Power supply connections

FAQ

The LC-40HDM is designed for cable sizes 3/0 to 4/0.

It is rated for up to 500 Amps.

Yes, the mating cam profile is compatible with standard Lenco-style LC-40 female connectors, although the cable capacity differs.

The cable is secured using a large oval-point set screw. You strip the cable insulation, insert the copper strands into the brass body, and tighten the screw down firmly.

Yes, the connector comes complete with the brass body and the heavy-duty insulator cover.

This is the Male connector (plug). You will need a Female connector (socket) to complete the connection.

The LC-40 is typically for 1/0-2/0 cable (350A), while the LC-40HD is for larger 3/0-4/0 cable (500A) and has a larger cable entry bore.

Yes, provided the cable size falls within the 3/0 to 4/0 range and you use an appropriate oxide inhibitor on the connection point.