4-Channel DIP Switch Delay Relay Module DC 5V 12V 24V

4-Channel DIP Switch Delay Relay Module — Model IO26G04

Take full control of your electronics projects with this versatile 4-Channel DC Relay Module. Supporting DC 5V, 12V, and 24V operating voltages, this compact relay board features four independently triggered channels, configurable functional modes, and adjustable delay timing — all set via the convenient onboard DIP switch. Whether you're building smart home systems, automotive electronics, or MCU development projects, this module delivers reliable, interference-free switching performance.

Made in Mainland China.

Key Features

• 4 Independent Channels: Each channel triggers independently with its own delay — no cross-channel interference.
• 4 Functional Modes:
  • Delay / Non-Locking (Momentary)
  • Self-Locking (Toggle)
  • Inter-Locking (Latch)
  • Power Sequencer (sequential relay activation)
• DIP Switch Configuration: Easily select function mode and delay time directly on the board — no soldering or programming required.
• Low Pulse Trigger: Triggered via GND connection through a button, or via low-level MCU IO port control.
• Wide Voltage Compatibility: Works with DC 5V, 12V, or 24V supply voltage.
• High Load Capacity: Each relay supports DC 1–110V / 5A or AC 85–265V / 6A loads.
• Sealed Protection: Enclosed design for reliable, durable operation.

Technical Specifications

• Model: IO26G04
• Operating Voltage: DC 12V (DC 5V / 24V optional)
• Operating Current (DC 12V):
  • Standby: 4mA
  • 1 relay active: 32mA
  • 2 relays active: 59mA
  • 3 relays active: 86mA
  • 4 relays active: 114mA
• Relay Max Load: DC 1–110V / 5A; AC 85–265V / 6A
• Dimensions: 68 × 53.5 × 20 mm
• Weight: 58g
• Power Source: DC

Contact Terminology Guide

• NO: Relay normally open contact
• COM: Relay common contact
• NC: Relay normally closed contact
• Relay Open: COM connects to NO
• Relay Close: COM disconnects from NO

Typical Applications

• Automotive electronics
• AC/DC motor control
• Audio amplifier sequential power-up
• Power sequencer/conditioner
• LED lighting control
• Smart home automation
• Emergency lighting systems
• MCU development boards (Arduino UNO, MEGA2560, etc.)
• Toy car and RC vehicle circuits
• Car delay power-off applications

How to Use

1. Select your desired function mode and delay time using the DIP switches on the board.
2. Connect your trigger input (button to GND or MCU IO low-level signal) to the appropriate channel.
3. Wire your load to the relay terminals (NO, COM, or NC as needed).
4. Important: Always re-power the board after changing any DIP switch settings for changes to take effect.

Package Includes

• 1 × IO26G04 DC 5V/12V/24V 4-Channel DIP Switch Relay Module

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Frequently Asked Questions

Q: What operating voltages does this 4-channel relay module support?

A: This relay module supports DC 5V, DC 12V, and DC 24V operating voltages. The default is DC 12V, with DC 5V and DC 24V available as optional configurations, making it highly versatile for a wide range of electronics and automation projects.

Q: What are the four functional modes available on this DIP switch relay module?

A: The module offers four selectable modes via the onboard DIP switch: (1) Delay / Non-Locking (Momentary) mode, (2) Self-Locking (Toggle) mode, (3) Inter-Locking (Latch) mode, and (4) Power Sequencer mode, which activates relays in sequence. All four channels operate independently without interfering with each other.

Q: Can I use this relay module with an Arduino or other microcontroller?

A: Yes! This module is fully compatible with MCU development boards including Arduino UNO and MEGA2560. It uses a low-level pulse trigger, so you can control each channel directly from your microcontroller's IO port by pulling the trigger pin to GND (low level).

Q: What is the maximum load each relay channel can handle?

A: Each relay channel supports a maximum load of DC 1–110V / 5A or AC 85–265V / 6A, making it suitable for switching LED lights, fans, motors, and other common DC and AC devices.

Q: Do I need to restart the module after changing the DIP switch settings?

A: Yes. After making any changes to the DIP switch (function mode or delay time), you must power-cycle the module (disconnect and reconnect power) for the new settings to take effect.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.