7-Position PCB Terminal Block, 3.50 mm Pitch, 12 A — Panel Wiring Fit
The TE Connectivity Buchanan 284414-7 is a 7-position, single-level PCB terminal block with a 3.50 mm pitch, designed for top-entry wire termination via a screw-actuated rising cage clamp. The green polyamide (PA66) housing is standard for ground/earth identification in panel wiring, and the 12 A / 300 V rating suits power distribution and control circuits inside industrial enclosures. The M3 screw with a specified torque of 0.25 Nm (2.2 Lb-In) ensures consistent clamping force across the 12-30 AWG wire range, and the side interlocking feature lets multiple blocks snap together for multi-circuit bus bars without extra brackets.
The rising cage clamp termination pulls the wire into a brass-nickel plated clamp, creating a gas-tight joint that resists vibration loosening better than a simple screw-and-pad design. The 0.25 Nm (2.2 Lb-In) torque spec is not a suggestion — under-tightening leaves the wire loose, over-tightening can strip the M3 brass screw or crack the PA66 housing. The 12-30 AWG range means this block accepts both 12 AWG power feeds (for the full 12 A) and 30 AWG signal wiring, but the clamp geometry is optimised for the larger gauges; 30 AWG needs careful stripping and insertion to ensure the cage grips the conductor.