350A Forklift Battery Plug

Explanation of Mechanical Voltage Keys

Features molded into the mating interface of the connector housing prevent accidental cross mating of circuits. This molded feature mechanically keys the connection so that only housings with the same mating interface can be mated together.

Different mechanical keys can be easily recognized by the color of the housing. This color coding corresponds to a voltage that industrial trucks, batteries, and chargers have adopted as a standard to prevent incompatible voltages from cross mating.

The same mechanical keying and color coding that is so successful for industrial trucks, is also widely used in power electronics applications. UPS systems, power supplies, personal mobility, and alternative energy applications have all used this feature to ensure user safety.

SJ connectors are Color Keyed

A unique feature of the SJ Series connector housings are that they are keyed to only mate with the same color housing. For example, a gray color will only connect with the same gray color SJ housing. The Red color will only connect to a red colored connector, etc.

This feature can be used to color code different voltages or systems and prevent accidental connection.