Power Versa-Lock Plug, 2-Circuit, Key E
The TE Connectivity 5-2378159-2 is a 2-circuit Power Versa-Lock plug housing, configured as a single-row 1x2 with key E polarization. This is the plug half of the Power Versa-Lock wire-to-wire system, designed for medium-current power distribution in harness assemblies where a positive-lock interface and keying prevent mis-mating with adjacent connectors of the same series. The key E coding means the plug housing has a specific polarization rib pattern — it will only mate with a Power Versa-Lock receptacle that carries the matching key E slot. In a multi-connector panel or junction box, this prevents accidentally plugging into the wrong circuit.
Mating Half and Harness Fit
For a 2-circuit key E receptacle, look for the matching TE housing — the key E slot must align with the plug's key E rib.