GBSX-2 is a 2-terminal closed-back phenolic terminal block designed for sub-chassis and thru-panel applications. It features precision screw-machined brass inserts molded in place, with a closed-back design that can be mounted directly on metal surfaces without additional insulation. The block accepts wire sizes from 22 AWG to 12 AWG with a current rating of 20 amps (UL/CSA) and voltage ratings up to 300 volts (CSA) or 250 volts (UL commercial applications). With mounting dimensions of 1.312 inches (33.33 mm) and overall dimensions of 1.687 inches (42.86 mm), it provides a full 1/4 inch terminal-to-ground clearance and is constructed from break-resistant thermo-set phenolic material rated for continuous use at 150°C. This terminal block is ideal for industrial control panels, power distribution systems, and equipment requiring reliable electrical connections with UL recognition and CSA certification.