1, Polycarbonate plastic enclosure with a NPT 1/2” mounting nipple, LED indicator and pre-wired for a money-saving installation that is easy and quick.
2, Input control signal version: AC/DC 12V, current 150mA. When controlled by a DC signal, the two wires on the input end do not need to care about their polarities.
3, Output switch SPST (Single Pole Single Throw). Rated current 40A. Rated voltage DC 30V.
4, This is a simple and practical passive relay module, which is very convenient to use. All wires lead out via 1/2” mounting nipple, it can be flexible mounting with your junction box / outlet box. Two screw mounting holes are convenient for you to fix it on the wall or wooden board.
5, Packing list: 1x relay module, 1x NPT 1/2” Zinc alloy conduit locknut, 2x M3x50mm screws.

Datasheet: https://www.czh-labs.com/tmp/madeimg/datasheet/f-1061-40a.pdf