Sizing the Power Distribution Point
The 1776296-8: The 0.394" (10.00 mm) pitch gives each screw terminal enough spacing to land 10 AWG wire without crowding — the wire gauge range is 10-24 AWG, so the heavy power feed lands on one side and the smaller control taps on the other. Two rows of terminals give 16 wire entries total, meaning each circuit has an entry and an exit point, which is the standard arrangement for a pass-through power block.
Wiring and Mounting
Top termination is screws with a zinc, non-hexavalent chromate finish on steel — the screw head clamps the wire directly, no pressure plate or cage. The bottom termination is closed, so this block is a single-sided wiring point, not a feed-through. Mounting is to a chassis or panel through the block's own mounting holes; there is no DIN rail foot, so plan for a fixed panel location. The natural polyamide (PA66/Nylon 6/6) housing carries a UL94 V-2 flammability rating, which is standard for enclosed industrial equipment but not the highest flame-retardant class.
Comparing Circuit Counts in the TSB500 Line
The 1776296-8 sits at 8 circuits in the TSB500 series. The 1776296-7 is a 7-circuit version at the same 0.394" pitch, same 30 A and 250 V ratings, same chassis mount and screw termination — the only difference is one fewer circuit, which means 14 wire entries instead of 16. If the BOM calls for exactly 8 circuits, the 1776296-8 is the match; the 1776296-7 is the choice for a 7-circuit distribution point. The 1776296-6 (6 circuits) and 1776296-5 (5 circuits) follow the same pattern.