5-Position PCB Terminal Block, 3.50 mm Pitch, 12 A — Buchanan 284414-5
The TE Connectivity Buchanan 284414-5 is a 5-position PCB-mount terminal block on a 3.50 mm pitch, rated 12 A at 300 V. It uses a top-entry rising cage clamp terminated by an M3 screw — the wire is clamped between the cage and the conductor bar, not wrapped around the screw, giving a gas-tight connection that resists loosening under thermal cycling. The green polyamide (PA66) housing is a visual standard for ground or chassis connections on many panel layouts. Accepts 12-30 AWG solid or stranded wire, with a specified torque of 0.25 Nm (2.2 Lb-In) for the screw.
Screw-Cage Clamp and Wire Termination
Wire termination is screw-driven rising cage clamp — the screw pushes a nickel-plated brass clamp down onto the conductor. The contact material is brass with tin plating, adequate for the 12 A rating in a stationary indoor environment. The M3 screw is also brass, nickel-plated, and the specified torque of 0.25 Nm (2.2 Lb-In) should be hit with a calibrated driver; over-torquing strips the threads in the PA66 housing. The interlocking side feature allows multiple blocks to be ganged side-by-side on the same rail without losing pitch alignment.