What This Barrier Block Does in a Panel
It accepts 12-22 AWG wire on the field side, secured by screws with a captive plate that keeps the hardware captive during wiring — no loose washers to drop into the cabinet. The 0.325" (8.26 mm) pitch gives enough terminal spacing for a standard screwdriver and ring-tongue or fork terminal without crowding adjacent circuits. Rated 20 A per circuit at 150 V, with a 105°C operating ceiling and a UL94 V-0 nylon housing, this block suits power distribution and control wiring inside an enclosure — the kind of job where a field-service tech needs to land a wire fast and trust the connection stays tight under vibration.
Wiring and Termination — What the Screws and Gauge Range Mean
That matters on a production line or in a field retrofit where dropped hardware means a trip to the floor or a short. The 12-22 AWG range covers the common power and signal wire sizes in industrial control: 12 AWG for a 20 A feed, 14-16 AWG for branch circuits, 18-22 AWG for signal or thermocouple runs. The through-hole mount gives a stronger mechanical anchor than an SMT terminal block, important when the wire is pulled or the cabinet is shipped and the block takes the strain.
It is RoHS compliant.