5V 12V 4 Channel with Optocoupler Output 4 Way Relay Module Expansion Board, 501 Original

5V 12V 4 Channel with Optocoupler Relay Output 4 Way Relay Module Low Level Trigger Expansion Board Feature:Contact part independent wiring, safe and reliable.Standard interface, can be extended on all kinds of development board.With fixed screw hole position, convenient to install.4-way relay output module, and the maximum of output contact part of the relay is 250A 10A. The input IN1,IN2,IN3,IN4 signal line is low level trigger. VCC, GND power input terminal, relay power supply can alone powered.Relay power input JD-VCC. Application: 1. Support all single chip microcomputer control. 2. Industrial field.3. PLC control.4. Home intelligent control.Module description: Specification: 4 way 5 V, 4 way 12 V 1. This module conforms to international safety standards, the control area and the load area have optocoupler;2. Adopt double-sided FR-4 circuit board design, patch process production; 3. Using Songle authentic relay control; 4. With relay action indication, suction closing, disconnection not bright; 5. When there is a low level signal at the input end of the signal, the common end and the normal beginning will be turned on. 6. Can directly control all kinds of equipment and load. 7. There are 4 normally open and 4 normally closed contacts; 8. The blue KF301 terminal is more convenient to connect to the control line. 9. Module size(LxWxH): 75mm*55mm*18mm/2.95*2.17*0.71''10. Equipped with 4 fixed bolt holes, hole 3.1 mm, spacing 68mm*48mm/2.68*1.89''.11. The finished product passes 100% function test and stability test, very convenient.12. Packing size: 115*95*20mm/4.53*3.74*0.79'' 13. Packing weight: 51g Note:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-3mm measuring deviation due to manual measurement.1 x Expansion Board