12-Circuit Barrier Block for Control and Power Distribution
The 4PCV-12-006: It carries a 20 A per-circuit current rating at 150 V, which puts it in the mid-range power distribution class — sized for control cabinets, HVAC panels, and industrial machine wiring where each circuit needs a separate, screw-terminated connection point. The 3-wall (tri) barrier design physically separates adjacent terminals, reducing the chance of a stray wire strand bridging two circuits during installation or service. The single-row layout with 12 wire entries keeps the block compact along the board edge.
Termination and Wiring: Screw with Captive Plate, PC Pin Bottom
Wire range is 12-22 AWG, covering the common solid and stranded sizes for control wiring. The terminal screw is steel with a zinc finish; the zinc provides enough corrosion resistance for dry indoor environments.
For a 12-circuit block, that is 240 A total across all circuits if evenly loaded, but the practical limit is set by the aggregate heat rise in the housing — derate if the ambient inside the cabinet exceeds 105°C. The 150 V rating suits low-voltage DC control buses and AC line-to-neutral circuits up to 150 V RMS; it is not rated for 277/480 V line-to-line power distribution.