1, Input control signal: Voltage AC or DC 48V, Current 9mA. 2, Output switch DPST 1NO 1NC(Double Pole Single Throw, 1x Normally Open and 1x Normally Close ), rated current 8A/250VAC or 8A/30VDC (for one switch). 3, Waterproof rating: IP68. Flame retardant rating V1. Case material: PC (Polycarbonate). Seal material: Silicone rubber. External screw: 304 stainless steel. 4, Input cable gland: PG9, cable diameter range 4mm ~ 8mm(0.157" to 0.315"). Output cable gland: PG13.5, cable diameter range 7mm ~ 12mm(0.276" to 0.472"). 5, This is a simple and practical passive relay module, which is very convenient to use. It can support both Normally Open and Normally Close. NOTE: Although the waterproof rating of this product is IP68, we do not recommend you to soak it in water for a long time. Datasheet: https://www.czh-labs.com/tmp/madeimg/datasheet/f-1033.pdf