94251420 - Tweco 4-MPC-1 Female Cable Connector Half

Heavy-Duty Mechanical Cable Connection

The Tweco 9425-1420 (Model 4-MPC-1) is a premium female cable connector designed for heavy industrial welding applications. Part of the renowned MPC (Mechanical Power Connection) series, this connector is engineered to provide a secure, low-resistance electrical junction for welding cables ranging from 3/0 to 4/0 AWG (70 to 95 mm²). The unit features a precision-machined brass body derived from extruded copper alloy, ensuring maximum conductivity and minimal heat buildup under high-amperage loads.

One of the standout technical features of the 4-MPC-1 is its Single Ball-Point cable connection. This design allows for a robust mechanical termination of the welding cable using a simple hex screw, eliminating the need for soldering or specialized crimping tools. This is particularly advantageous for maintenance and repair operations (MRO) where quick cable assembly is critical. The connector includes a copper shim to protect the cable strands from the screw, ensuring optimal contact area and preventing strand breakage.

The connector is encased in a durable, solvent-resistant rubber cover that provides excellent electrical insulation and protection against physical impact. The mating mechanism utilizes a positive cam-action lock, which secures the male and female halves together with a simple twist, preventing accidental separation even when cables are dragged across the shop floor. This specific SKU represents the female half of the connection pair.