Contact and Housing Construction
The 395430004: Contacts are brass with tin plating — the tin finish supports the 10 A rating for signal and low-power distribution use, though it carries lower mating cycle endurance than gold-plated alternatives in the same series. The housing is black polyamide (PA66, Nylon 6/6), rated for continuous operation from -40°C to 105°C, which covers most industrial enclosure environments without derating the current rating.
Mating and Orientation
The 395430004 mates horizontally with the PCB — wire entry is side-entry (side entry), which affects wire routing geometry in dense panel layouts. Verify that the enclosure wire channel aligns with side-entry access before committing the position in a crowded DIN-rail or panel assembly. No IP sealing rating is listed for this open-style terminal block, so it is not suited for wash-down or outdoor exposure without additional enclosure protection.