Terminal Block for Panel Wiring — 15 A, 300 V, 5.08 mm Pitch
The 0395943002: The rising cage clamp accepts wire from 12 to 30 AWG, and the screw torque is set at 0.51 Nm (4.5 Lb-In) to get a gas-tight connection without crushing the conductor. The contacts are brass with tin plating — tin is standard for a fixed-installation terminal block where the wire is terminated once and left. The brass clamp material and steel screw are both plated to resist corrosion in a typical panel environment.
Wire Sizing and Torque — Getting the Connection Right
The rising cage clamp accepts solid or stranded wire from 12 AWG down to 30 AWG. The 0.51 Nm torque spec is the factory recommendation. The single-level construction keeps the block compact for a 2-position termination.