LC-1040 - Lenco LC-40 Male Cable Connector for #2-#4 AWG

Technical Overview: Lenco LC-40 Male Connector for #2-#4 Cable

The Lenco LC-1040 (Internal SKU: L05070) is a specialized male cable connector engineered to bridge the gap between lighter gauge welding cables and heavy-duty shop connections. While standard LC-40 connectors are typically sized for 1/0 to 2/0 AWG cables, this unit is specifically machined or configured to securely accept #2 and #4 AWG copper welding cables. This allows operators to run lighter, more flexible whip leads or extensions without sacrificing compatibility with the ubiquitous LC-40 or Tweco MPC-2 style female receptacles found on most industrial power sources.

Constructed from a special brass alloy, the connector body offers superior electrical conductivity, minimizing voltage drop across the connection point. The design utilizes a positive cam-action locking mechanism. When mated with a compatible female receptacle, the connector is twisted approximately one-half turn, pulling the two halves tightly together under high pressure. This ensures a low-resistance current path that resists loosening due to cable tugging or vibration during operation. The cable is secured within the brass body using a large oval-point screw, which applies significant clamping force without severing the fine copper strands of the welding cable.

Protection is provided by a heavy-duty vulcanized fiber cover. Unlike standard plastic covers, vulcanized fiber is highly resistant to the intense heat and spatter common in welding environments, as well as the physical abuse of being dragged across concrete floors. The cover acts as an insulator, preventing accidental arcing if the connector contacts grounded surfaces. This connector is an essential component for MRO applications where equipment standardization is required across varying cable sizes.