Relay Module

145 products

5V Relay Module with Optocoupler Isolation 4 Channel 6 Channel 8 Channel 16 Channel Relay Module Low Level Trigger

$0.61

Modbus 1/2/4/8-Channel Relay Module Digital Input Output RS485/TTL Communication

$1.89

3.7V to 9V 5V multimeter modified 18650 lithium battery charging, boosting and discharging integrated adjustable module 2A

$0.36

ESP32-S3 6-Channel WiFi Network Relay Module Supports WiFi/Bluetooth/RS485/Pico Interface

$35.91

Industrial grade Modbus RTU optocoupler isolation RS485 rail 1/2/3/4/8-way relay ABS shell

$10.68

Brand new original super light automotive relay CG-12F 24V pure copper wire high power waterproof car with 5 feet 80A

$0.68

Hongfa Relay JQX/HF105F-4-005D 012D 024D 220A-1HS 1ZS 1HST 1ZST

$1.05

1/2/4/8 Channel Solid State Relay Module 5A High-Level Single-Phase PLC Controller Automation Intelligent

$3.86

Multi-channel relay module (WS0410~WS1610 series) 4-channel, 6-channel, 8-channel relay module wholesale

$9.09

R001751 RV Relay for PopUp Camper RV 12V relay car DC

$17.95

One-way high-power relay module optocoupler isolation high and low level trigger 5V/12V/24V30A YYG-2

$3.18

4-channel Relay Module Optocoupler Isolation 5v 12v 24v High Low Level Trigger Plc Drive Control Board Module

$1.75

Driverless/USB control switch, 1/2/4/8 channel relay module/computer control switch/PC intelligent control

$3.50

DC7-60/5V power supply WIFI Bluetooth single-channel 30A relay development board ESP32 secondary development

$8.41

RB-R6F6S-W1 12V Waterproof Automotive Relay Box with Wire Pre-Wired Waterproof Car Fuse Box

$14.32

8-Channel 12V Computer USB Control Switch Driver-Free Relay Module PC Smart Controller Red Board

$6.09

Modbus-RTU 1/2/4/8-Channel Relay Module Switch Input/Output RS485/TTL Communication

$2.23

3SK1111-1AB30 Siemens safety relay screw terminal connection automation module

$161.36

5V 1/2/4/6/8 channel relay module Optocoupler supports high level and low level triggering

$0.38

Relay module 5/12/24V optocoupler isolation 1/2/4/8-channel high/low level trigger development board microcontroller

$0.59

1-8 Channel 5V 12V 24V Relay Module with Optocoupler Isolation Strong Anti-Interference Optocoupler Isolation Module

$0.66

1248-channel 5V12V24V relay module with optocoupler isolation development board supports high and low level trigger power

$0.80

Delay Time Relay Module 5V 12V 24V Programmable Timer Optocoupler Isolation Pulse Cycle Power-off Trigger

$1.59

1/2/4/8-channel 30A relay module with optocoupler, high/low level triggering PLC microcontroller control board

$2.05