The TE Connectivity 6WWV-03-008 is a 3-circuit barrier strip from the #6, Buchanan series, designed for panel wiring and point-to-point power distribution where a screw-clamp termination is preferred. The block accepts 12-22 AWG wire, so it covers both heavier power feeds and smaller control wiring in the same assembly.
This is a field-service detail: the captive plate saves the time of fishing a loose washer out of a live panel. Bottom termination is wire wrap, meaning the solderless wrap post is intended for a wire-wrap gun, not a soldering iron. The 3-wall (tri) barrier design isolates each terminal position, reducing the chance of a stray strand bridging adjacent circuits during wiring.
The 105°C operating temperature of the thermoplastic insulation gives headroom in a warm cabinet, but the current should be derated above 105°C per the manufacturer's curve.