12 Positions at 3.81 mm Pitch — Board Footprint and Current Ceiling
The 1-284517-2: Twelve positions in a single level keep the header length to about 45 mm (12 × 3.81 mm), fitting standard terminal-block footprints on DIN-rail-mount PCBs.
No stock-holding claim — confirmed per RFQ.
Comparing the 12-Position to the 10-Position Sibling
The direct sibling 1-284517-0 shares the same pitch (3.81 mm), current (11 A), voltage (300 V), and vertical orientation — the only difference is 10 positions vs 12. If the BOM calls for 10 circuits, 1-284517-0 is a drop-in; for 12 circuits, this is the part. The 3.50 mm pitch siblings (1-284514-2, 1-284516-2) are not footprint-compatible — the 0.31 mm pitch difference shifts every pin location. Stick with the 3.81 mm series for this board layout.
Vertical Through-Hole — Board-Mount and Soldering
Vertical orientation means the pins stand perpendicular to the PCB — the header accepts the mating plug from above, which is the standard arrangement for terminal blocks on DIN-rail-mounted boards. Solder termination: the through-hole pins are designed for wave or hand soldering.