Tweco TWE9425-1200 2-MPC Cable Connection Male/Female

The Tweco TWE9425-1200 is a 2-MPC cable connection, male and female, full connect, for 1/0, 2/0 and 3/0 AWG.

Reading this against the 1-MPC in the same range shows the system: the number is the size class, and the size class is a cable range.

A 1-MPC takes 4, 2 and 1 AWG. A 2-MPC takes 1/0, 2/0 and 3/0. Those ranges do not overlap, and the connectors do not mate with each other — a 1-MPC male will not join a 2-MPC female. That is deliberate, because a connector sized for 2 AWG cannot carry what 3/0 cable is delivering.

Which means the connector follows the cable, and the cable follows the current and the length.

That relationship is worth spelling out. Welding cable is sized by amperage and by run length together, because resistance accumulates with distance. A long lead at high current needs heavy cable — and heavy cable needs the connector that fits it.

The failure mode when it is wrong: the connector becomes the resistance in the circuit. It heats, the heat oxidises the contact, oxidised contact means more resistance, and the joint runs away. A hot connector is a connector that is about to fail.

Clean, tight, correct size.

Full connect means both halves supplied.

Brand

Tweco

SKU

TWE94251200

Category

Welding & Gas Supplies

Weight

1.08 lbs

Dimensions

11.50 x 4.00 x 2.50

Price

$45.00

Availability

In stock

Rating

4 / 5.0