Relay Module, 8 Channel 12V Relay Board with Optocoupler Isolation, High and Low Level Trigger Relay Switch for Home Automation, Industrial Control and PLC Applications

Price: £8.96
(as of Jun 05, 2026 23:16:32 UTC – Details)

Product Description

12V Relay Module 8 Channel Relay Board, DC 12V Delay Relay Module Board Switch with OPTO Isolation High Low Level Trigger(12V)

Specification:

Weight: 118g/4.2oz

Common interface load: AC/10A, DC 30V/10A

Module Size (L x W x H): 141.5 x 50 x 18.5mm/5.6 x 2 x 0.7inch

Bolt Hole: 3.1 mm; 136 x 44.5mm (spacing)

Voltage: 5V/ 12V/ 24V (Optional)

High and low level trigger selection terminal:

1. S1-S8 is the high-low level trigger selection of relay 1-8 channels successively;

2. Com and low short connection, the corresponding relay for low level trigger, com and high short connection for high level trigger.

Package List:

1 * Relay Module

Features:

– Adopt patch photocoupler isolation, strong driving ability, stable performance. Trigger current is 5mA.

– Module operating voltage is 5V,12V,24V for choice.

– Each route of the module can be triggered by the high level or low level through a jumper setting.

– Fault-tolerant design,even if the control line breaks,the relay will not move.

– Power indicator light (green), 8-way relay state indicator light (red).

– Humanized interface design, all interfaces can be directly connected through the terminal lead.

– Four fixing bolt holes are provided.

8-Channel Relay Control: This relay module features 8 independent relay channels, each with normally open and normally closed contacts, allowing control of multiple devices or circuits from a single control board
Optocoupler Isolation Protection: Equipped with optocoupler isolation circuits, this relay board prevents damage to control ports from relay switch currents, enhancing safety and stability in automation and control systems
Flexible Trigger Options: With jumper-selectable high or low level triggering for each channel, this relay module offers compatibility with various microcontrollers, PLC systems, and industrial control applications
Robust Relay Specifications: Each relay supports AC250V 10A or DC30V 10A loads, providing sufficient capacity for controlling lights, motors, solenoids, and other electrical devices in automation projects
Easy Installation and Integration: Featuring terminal blocks for all connections and four mounting holes, this relay board is designed for straightforward installation in control cabinets, DIY projects, or industrial applications

Product summary

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