{"product_id":"30a-4-channel-relay-module-12v-expansion-board-wit","title":"30A 4 Channel Relay Module 12V Expansion Board With High Low Level Trigger Optocoupler Isolation For PLC Automation Equipment Control Industrial Applications","description":"\u003cdiv\u003e4-Channel 30A 12V Relay Module, 1pc for PLC automation \u003cbr\u003e\n✔️ 30A per channel, 12V DC supply, optocoupler isolation \u003cp\u003eThis 4-channel relay expansion board lets you safely switch high-power devices from a low-voltage control system. It's a common fit for PLC automation equipment, industrial control setups, and IoT projects where isolated switching is needed.\u003c\/p\u003e \u003cp\u003e✅ Maximum load per channel up to 30A for high-power switching\u003cbr\u003e\n✅ Load voltage range up to 30V DC \/ 250V AC\u003cbr\u003e\n✅ DC 12V supply and ~5mA trigger current for easy interfacing\u003cbr\u003e\n✅ Optocoupler isolation with LED indicators for status\u003cbr\u003e\n✅ Terminal blocks for quick wiring and easy setup\u003cbr\u003e\n\u003c\/p\u003e \u003cp\u003e💡 What is a 12V four-channel relay module used for in PLC automation and industrial control? This handy device helps you switch high-power loads from low-voltage controllers.\n- Handily switches motors, pumps, solenoids, and indicators from a microcontroller or PLC.\n- Provides isolated control through optocouplers to protect sensitive controllers.\n- Supports up to 30A per channel for reliable industrial control.\n- Easy wiring via terminal blocks with configurable high\/low trigger for quick setup.\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48247251992811,"sku":"VXB0DKSJ7Q49","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/610TLbYjYDL.jpg?v=1778502868","url":"https:\/\/vxb.com\/products\/30a-4-channel-relay-module-12v-expansion-board-wit","provider":"VXB Bearings","version":"1.0","type":"link"}