Eurostyle Terminal Strip for Power Distribution
The TE Connectivity Buchanan 1776302-5 is a 5-circuit Eurostyle terminal strip from the TSB1000 series, designed for panel-mount power distribution where a screw-clamp termination is preferred. The 0.472" (12.00 mm) pitch gives generous spacing between terminals, which keeps creepage distances comfortable for the 250 V working voltage without crowding the wiring fingers.
Accepts 10-22 AWG wire on both rows — the 10 AWG capacity is real, confirmed by the spec, so this strip handles the heavier branch-circuit conductors common in industrial control panels. Top termination is screw-clamp with steel screws finished in zinc non-hexavalent chromate; the bottom termination is closed, meaning there are no through-board pins — this is a pure panel-mount strip for field wiring, not a PCB header. The enclosed barrier type provides a physical shield between adjacent terminals, reducing the chance of accidental shorting during servicing. Two rows and 5 circuits give 10 wire entries total. The housing is rated for continuous operation at 100°C, which is the thermal ceiling before derating the 40 A current; in a 60°C cabinet the strip runs at full rating, but above that the current should be reduced per the manufacturer's derating curve.
The 1776302-5 is not a high-volume commodity part; it is a specified BOM line that gets pulled into an RFQ for a panel build or maintenance kit. If you are matching an existing panel layout, the 0.472" pitch and 5-circuit count are the footprint anchors — confirm the mounting hole spacing and the screw terminal pattern against your enclosure before committing.