KNACRO SLA-12VDC-SL-C 1 Channel Relay Module DC 12V 30A with optocoupler Isolation Support High Level Low Level DC 12V 30A 1-Channel

Relay version: 12V. Quiescent Current: 5mA. Maximum current: 80mA. Trigger current: 2 ~ 4mA. Trigger voltage (low level): 0 ~ 4V. Trigger voltage (high level): 4.5 ~ 12V. Maximum load: AC 250V / 30A, DC 30V / 30A. Module size: 50mm * 33mm * 24mm (L * W * H). Product Weight: 36g. There are four mounting bolts holes, hole 3.1mm, spacing 44.5mm * 27.5mm. Module Interface Description: DC +: positive module DC power supply (positive terminal voltage trigger) DC-: DC power supply module negative electrode (anode terminal voltage trigger) IN: Signal triggering end (default trigger the same voltage as power supply) JD +: positive voltage relay control terminal JD-: relay control terminal voltage of the negative DC + and JD + with jumpered, DC- and JD- with jumpered, the same trigger terminal and relay control terminal voltage High and low trigger mode selection, when the jumper is connected to L side, IN terminal is low trigger connection with the H for the high end trigger Normally closed terminal (NC): relay normally closed terminal Common terminal (COM): relay common Normally open (NO): normally open relay