{"product_id":"5v-12v-24v-relay-module-with-optocoupler-relay-output-16way-relay-module-for-arduino-plc-automation-equipment-control","title":"16-Channel Relay Module with Optocoupler for Arduino and PLC","description":"\u003cp\u003eA panel with sixteen loads to switch usually means a stack of small boards and a lot of jumper wires. This module puts the sixteen relay channels on one board, with optocoupler isolation between the control inputs and the relay side. It is aimed at Arduino and PLC builders wiring lights, pumps or valves.\u003c\/p\u003e\u003ch2\u003eSixteen Channels, One Board, One Control Feed\u003c\/h2\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eSixteen outputs, one board\u003c\/strong\u003e Group sixteen circuits on a single module instead of stacking four-way boards along the rail.\u003c\/p\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eIsolated control side\u003c\/strong\u003e Optocouplers sit between the logic inputs and the relays, keeping coil switching off the controller pins.\u003c\/p\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eArduino and PLC control\u003c\/strong\u003e Drive the channels from an Arduino sketch or a PLC output, whichever the panel already uses.\u003c\/p\u003e\u003cp style=\"margin:0 0 6px 0\"\u003e✅ \u003cstrong\u003eVoltage options\u003c\/strong\u003e Choose the 5 V, 12 V or 24 V version that matches the supply already in the enclosure.\u003c\/p\u003e\u003cp\u003eThe wiring follows one path per channel: a controller output feeds an input, the optocoupler carries that signal across the isolation barrier, and the matching relay contact closes the load circuit. Sixteen of those paths sit on one board with a single supply feed.\u003c\/p\u003e\u003cp\u003eIsolation earns its place with inductive loads. Pumps, solenoids and contactor coils produce a spike when they switch off, and the optocoupler is the part that keeps that spike away from the logic pins. It does not replace fusing or a correctly rated contact, but it keeps switching transients off the controller side.\u003c\/p\u003e\u003cp\u003eVoltage is the decision to make before ordering. A 24 V module on a 5 V rail will not pull in, and a 5 V version fed from a 24 V rail is worse. Match the module to the supply already inside the enclosure, then count the loads you need to switch.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical details\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChannels: 16 relay outputs\u003c\/li\u003e\n\u003cli\u003eOutput type: Relay contacts with optocoupler isolation\u003c\/li\u003e\n\u003cli\u003eSupply options: 5 V, 12 V and 24 V versions\u003c\/li\u003e\n\u003cli\u003eControl compatibility: Arduino, PLC and automation controllers\u003c\/li\u003e\n\u003cli\u003eCondition: New\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7da8c3aa6bd24d96aa4cf8033b4b114fv.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sf2c21561d3264cdd8d939e014bba0f77I.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2b523ba67e0c43f3b57582778f4d7d5eL.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0ba1b43531304c05a441de3c1e07e1c0Z.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Se72620e295d3409ea8ffbef073619beak.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\u003cp\u003eCheck the supply voltage in your panel, then choose the 16-channel module that matches it.\u003c\/p\u003e\u003cp\u003eSee more: \u003ca href=\"https:\/\/spy-shop.com\/collections\/smart-home\"\u003eexplore more smart home control gear\u003c\/a\u003e\u003c\/p\u003e","brand":"Spy-shop.com","offers":[{"title":"12V 16Way","offer_id":64124016165194,"sku":"1005007384959452-12V 16Way","price":44.99,"currency_code":"EUR","in_stock":true},{"title":"5V 16Way","offer_id":64124016197962,"sku":"1005007384959452-5V 16Way","price":43.41,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/5980\/2954\/files\/Sf2c21561d3264cdd8d939e014bba0f77I.webp?v=1793145684","url":"https:\/\/spy-shop.com\/ar\/products\/5v-12v-24v-relay-module-with-optocoupler-relay-output-16way-relay-module-for-arduino-plc-automation-equipment-control","provider":"Spy-shop.com","version":"1.0","type":"link"}