The 796691-2 in the Buchanan PCB Terminal Block Line
The TE Connectivity Buchanan 796691-2 is a two-level PCB-mount terminal block with 2 positions per level, giving you 4 wire termination points in a package that takes up roughly the board space of a single-level 2-position block. The blue housing is polyamide 6/6, UL94 V-0 rated, which is the expected flame class for equipment inside an enclosure. This is the member of the Buchanan series that fills the niche where you need a dual-level block for a 2-circuit-per-level power feed — think splitting a 24 VDC bus rail into two fused outputs on the same PCB.
Screw Termination and Wire Range
Wire termination is a rising cage clamp driven by an M3 screw. The torque spec is 0.79 Nm (7.0 Lb-In) — that's the sweet spot where the cage lifts and clamps the conductor without stripping the screw head or cracking the housing. It accepts wire from 12 AWG down to 30 AWG, which covers everything from a 20 A power feed down to a sensor signal line. No crimp tool needed — just strip, insert, torque. The clamp and contact are both brass with tin plating, which is the standard choice for a cost-effective, corrosion-resistant connection in a dry indoor environment.
Ganging Multiple Blocks with Side Interlocking
The interlocking side feature means you can snap multiple 796691-2 blocks together side-by-side to build a multi-position assembly without needing a separate jumper bar or bus strip. This is a real time-saver on a panel where you need, say, 8 positions across two levels — you order four of these blocks, snap them together, and they align on the PCB as a single continuous strip. The alternative is a single-piece 8-position dual-level block (like the 796692-4, which has 4 positions per level at 5.08 mm pitch), but the interlocking approach gives you modularity — if one position fails in the field, you replace one block, not the whole strip.