<p>Channel: 1 channel</p> <p>Material: Circuit board</p> <p>Control signal: TTL</p> <p>Work voltage: DC 3V/3.3V</p> <p>Main chip: EL817, SRD-DC03V-SL-C</p> <p>Compatible Load:10A 250VAC, 10A 30VDC</p> <p>Response time :Less than 20 milliseconds</p> <p>Single Socket Length: 7.5:mm</p> <p>Relay Size: 70mm X17mm X20mm (LxWxH)</p> <p>Power interface:</p> <p>1. VCC: positive pole of power supply (3v/3.3v)</p> <p>2. GND: connect to the negative pole of the power supply</p> <p>3, IN: high level control relay suction</p> <p>Load interface:</p> <p>1. NO: normally open interface of the relay. The relay is suspended before suction and shorted with COM after suction</p> <p>2. COM: common interface of relay</p> <p>3. NC: normally closed interface of relay, short connection between relay and COM before suction and suspension after suction.</p> <p>Note:</p> <p>1. If you're switching high voltages, be very careful handling this device. The terminal block screws, in particular, are at full controlled voltages. Turn off all power off before making changes.</p> <p>2.When the jumper cap connected, the relay working power supply will also as the signal power supply, when not connected, the relay and signal power supply is isolated.</p> <p>100% Satisfaction Guarantee:</p> <p>12-Month Warranty; No satisfied, Free reason for return; Quality problem, please contact us, we will resend your FREE Replacements or make you FULL Refund.</p> <p>Package include:</p> <p>6 pcs x1 Channel 3v Relay Board</p>