The 0.156" (3.96mm) pitch is a standard spacing for medium-current power connectors, giving enough room between circuits for the current rating the series supports while keeping the housing compact for a 2-position layout.
Mounting and Termination — Snap-In Panel Fit with Crimp Contacts
The crimp termination style means the installer attaches the tab contacts to the wire ends with a crimp tool, then inserts them into the housing cavities. The single-row, 2-position layout keeps the wire exit clean for low-circuit-count power taps or daisy-chain links.
