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Red eight-channel relay board with optocoupler isolation and jumper-selectable triggers

anicorn

anicorn 12V 8 Channel Relay Module Optocoupler Isolation High Low Level Trigger Red Board

SKU CH-A3Z0-3P80M

Eight-channel 12 V relay board with optocoupler isolation, selectable high/low trigger, 10 A at 250 VAC or 30 VDC per channel

Colour 8CH-12V-2PCS

  • 1CH-3V-8PCS
  • 8CH-12V-2PCS

Struck-through versions exist but are not stocked here.

  • Switches up to 250VAC at 10A per channel
  • Optocoupler isolation protects microcontroller from load voltage
  • High or low level trigger selectable by jumper
  • Compatible with 3.3V logic including ESP8266 and Raspberry Pi
  • Fast 20ms response with 100000-cycle mechanical life

8-Channel 12 V Relay Board for Microcontroller

This module provides eight optically isolated relay channels that switch AC loads up to 250 VAC 10 A or DC loads up to 30 VDC 10 A. It is aimed at hobbyists and engineers who need to control mains-voltage devices from 3.3 V logic such as Arduino, Raspberry Pi, ESP8266 or similar MCUs.

Optocoupler Isolation

Each channel uses an optocoupler to keep the control side galvanically separated from the load side. A jumper on each relay lets you choose between high-level triggering (TTL) and low-level (ground) triggering, so the same board fits active-high or active-low firmware without rewiring.

Red PCB with Screw Terminals and Long-Rated Contacts

The red printed-circuit board carries pluggable screw terminals for quick, secure wiring of both normally open and normally closed contacts. Relays are rated for a response time under 20 ms and a mechanical life of 100000 operations, with built-in freewheel diodes to protect the drive circuitry during inductive load switching.

Highlights

  • Switches up to 250VAC at 10A per channel
  • Optocoupler isolation protects microcontroller from load voltage
  • High or low level trigger selectable by jumper
  • Compatible with 3.3V logic including ESP8266 and Raspberry Pi
  • Fast 20ms response with 100000-cycle mechanical life

Specifications

No published specifications for this item yet.

Questions about this item

How many switching cycles are the relays rated for before they may need replacement?

Each relay is rated for up to 100000 snap-action cycles with diode freewheel protection.

What is the maximum current each relay contact can handle continuously?

The contacts are rated for 10 A at 250 V AC or 30 V DC per channel.

How much heat or power draw should I expect when all eight channels are active all day?

The board uses optocoupler isolation and 3.3 V logic; each relay draws only the coil current needed for its 10 A switching rating.

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