Board-Mount Terminal Block, 4 Positions, 5.00 mm Pitch
The TE Connectivity Buchanan 282836-4 is a 4-position PCB-mount terminal block on a 5.00 mm pitch, using a screw-actuated rising cage clamp to terminate 16-30 AWG wire. Rated 13.5 A at 300 V, the block handles typical industrial control and power distribution signals without derating at room ambient. The green housing colour follows the convention for ground or protective-earth terminals in many panel designs, though the block itself is a general-purpose power/signal interconnect.
Rising Cage Clamp and Torque Specification
The rising cage clamp — brass with nickel plating — lifts a clamping plate into the wire as the M3 screw is tightened, creating a gas-tight connection on solid or stranded conductors. The specified torque is 0.68 Nm (6 Lb-In); exceeding it risks stripping the polyamide (PA66) threads or distorting the clamp. The nickel-plated brass screw and clamp resist corrosion in humid cabinet environments, and the tin-plated brass contact interface matches the PCB pad finish for a stable junction.
Interlocking Side Feature for Multi-Way Assemblies
The interlocking (side) feature allows ganging multiple 282836-4 blocks side by side without separate end brackets or jumper bars for mechanical alignment. This is useful when a design calls for more than four positions — stack two or three blocks to build an 8- or 12-position terminal strip on the same pitch, maintaining consistent wire spacing. The interlock does not carry current; it is purely mechanical retention between adjacent housings.