8-Channel RC PWM Relay Module 16-Way Electronic Switch 4.5–12V

8-Channel RC PWM Relay Module — 16-Way Electronic Switch for RC Cars, Boats & Aircraft

Take full control of your RC builds with this versatile 16-Way 8-Channel RC PWM Relay Module. Designed for RC hobbyists and builders, this electronic switch module seamlessly interfaces with any standard PWM output receiver, letting you control motors, lights, servos, and more with precision. Whether you're building an RC car, boat, or aircraft, this module delivers rock-solid switching performance with powerful anti-interference protection.

Key Features

• Wide Input Voltage: Compatible with 4.5V–12V power supplies — works with most standard RC battery packs
• 8 Channels / 16 Paths: Control up to 8 independent channels simultaneously, with two relay outputs per channel for maximum flexibility
• High Output Capacity: Each relay rated at 250VAC / 10A × 2 — handles demanding loads with ease
• Dual Relay Switching Mode: Perfect for motor forward/reverse rotation — relay 1 engages on forward throttle (signal >1750µs), relay 2 engages on reverse (signal <1250µs), both disengage at center for motor braking
• Synchronous Working Mode: Both relays engage and disengage simultaneously — ideal for synchronized switching applications
• DIP Switch Configuration: Easily toggle between operating modes via onboard code-dial DIP switches — no soldering required
• Reverse Connection Protection: Built-in receiver input reverse connection protection safeguards your electronics
• Super Strong Anti-Interference: Engineered to operate reliably even in electrically noisy RC environments
• Compact & Lightweight: Dimensions: 148mm × 85mm × 20mm — fits neatly into most RC chassis and enclosures

Technical Specifications

Operating Modes Explained

Mode 1 — Dual Relay Switching Mode (DIP Switch: OFF/Default)

Ideal for controlling motor forward and reverse rotation:

• Forward throttle (signal >1750µs): Relay 1 ON, Relay 2 OFF → Motor forward
• Reverse throttle (signal <1250µs): Relay 2 ON, Relay 1 OFF → Motor reverse
• Center position (1400µs – 1600µs): Both relays OFF → Motor brake

Mode 2 — Synchronous Working Mode (DIP Switch: ON)

Both relays activate and deactivate together:

• Signal >1750µs: Relay 1 ON, Relay 2 ON
• Signal <1600µs: Relay 1 OFF, Relay 2 OFF

What's in the Box

• 1× RC PWM Relay Switch Module

Compatible Applications

This relay module is perfect for a wide range of RC applications including RC cars, trucks, boats, aircraft, drones, and custom robotics projects. If your build uses a standard PWM RC receiver, this module integrates effortlessly.

For a deeper understanding of PWM (Pulse Width Modulation) signal standards and electronic safety standards for low-voltage components, visit the National Institute of Standards and Technology (NIST) for electronics measurement and standards guidance.

Notes

• Due to screen calibration differences, actual product color may vary slightly from images.
• Please allow ±1mm–10mm measurement tolerances due to manual measurement.

Frequently Asked Questions

Q: What type of RC receiver is compatible with this RC PWM relay module?

A: This module is designed to work with any standard PWM output RC receiver. As long as your receiver outputs standard PWM signals (typically 1000µs–2000µs pulse width), it will be fully compatible with this 8-channel relay switch module.

Q: Can I use this relay module to control motor forward and reverse direction?

A: Yes! In Dual Relay Switching Mode (DIP switch set to OFF/Default), the module is specifically designed for motor direction control. Relay 1 activates for forward motion, Relay 2 activates for reverse, and both disengage at center stick for a motor brake effect — making it ideal for RC car and boat motor control.

Q: What is the maximum load this relay module can handle?

A: Each relay output is rated at 250VAC / 10A × 2, giving you ample capacity for most RC-scale motors, lighting systems, and accessory loads. Always ensure your total load stays within the rated limits for safe, reliable operation.

Q: How do I switch between the two operating modes?

A: Switching modes is simple — just adjust the onboard DIP switch. Set it to OFF for Dual Relay Switching Mode (motor forward/reverse control) or ON for Synchronous Working Mode (both relays activate/deactivate together). No soldering or programming required.

Q: Is there protection against accidental reverse wiring of the receiver connection?

A: Yes, this module includes built-in reverse connection protection on the receiver input, helping to safeguard your module and connected electronics in the event of an accidental miswiring.