Dual Channel RC Relay Module PWM Switch 3.6-12V | 4 Modes

Dual Channel RC Relay Module — 4 Working Modes, PWM Electronic Switch

Take full control of your RC car, boat, or motor with this versatile Dual Channel RC Relay Module. Designed for hobbyists and makers alike, this compact PWM electronic switch supports four configurable working modes, allowing you to precisely manage forward, reverse, synchronous, and point-operation control — all from a standard PWM receiver signal. Made in Mainland China.

Key Features

• 4 User-Selectable Working Modes — configure via dual dial switches to match your application
• Wide Input Voltage Range — 3.6V to 12V with internal voltage stabilization for convenience
• High Output Capacity — dual relay breakdown capacity of 250VAC / 15A per channel
• Multi-Level Signal Filtering — exceptional anti-interference performance for reliable operation in noisy RF environments
• SMT Construction with AOI Inspection — surface-mount assembly fully verified by automated optical inspection for quality assurance
• Compact Form Factor — only 39mm × 32mm × 18mm, easy to fit into tight RC chassis or enclosures

Specifications

4 Working Modes Explained

Mode 1 — Dual Relay Switching (Motor Forward & Reverse)

Dial Switch 1: OFF | Dial Switch 2: OFF

• Signal > 1750µs → Relay 1 ON, Relay 2 OFF (motor forward)
• Signal < 1250µs → Relay 2 ON, Relay 1 OFF (motor reverse)
• Signal 1400–1600µs → Both relays OFF (motor brakes)

Mode 2 — Synchronous Operation

Dial Switch 1: ON | Dial Switch 2: OFF

• Signal > 1750µs → Relay 1 & 2 both engage
• Signal < 1600µs → Relay 1 & 2 both disengage

Mode 3 — Self-Locking Synchronous Operation

Dial Switch 1: ON | Dial Switch 2: ON

• Signal > 1750µs → Relay 1 & 2 both engage (latched)
• Signal < 1250µs → Relay 1 & 2 both disengage

Mode 4 — Point Operation (Timed Pulse)

Dial Switch 1: OFF | Dial Switch 2: ON

• Signal > 1750µs → Relay 1 engages for 1 second, then auto-disengages (motor runs one forward cycle)
• Signal < 1250µs → Relay 2 engages for 1 second, then auto-disengages (motor runs one reverse cycle)

What's in the Box

• 1× Dual Channel RC Relay Module (Electronic Switch)

Notes

• Colors may vary slightly from images due to display settings.
• Please allow ±1mm–10mm measurement tolerance due to manual measurement.

For additional safety guidance on electronic hobby components and DIY electronics, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

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

A: This RC relay module is designed to work with standard PWM (Pulse Width Modulation) output receivers — the most common type used in RC cars, RC boats, and hobby motor controllers. As long as your receiver outputs a standard PWM signal, it will be compatible.

Q: Can I use this relay module to control both forward and reverse on an RC boat motor?

A: Yes! Mode 1 (Dual Relay Switching) is specifically designed for motor forward and reverse control. By configuring Dial Switch 1 OFF and Dial Switch 2 OFF, the module will automatically engage the appropriate relay based on your transmitter's throttle stick position — perfect for RC boats, RC cars, and any application requiring bidirectional motor control.

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

A: Each of the two relay channels is rated at 250VAC / 15A, making this module suitable for controlling moderate to heavy loads in RC and hobby electronics projects. Always ensure your application's load stays within the rated limits for safe operation.

Q: How do I switch between the four working modes?

A: The four working modes are selected using the two onboard dial switches. Simply set Dial Switch 1 and Dial Switch 2 to the ON/OFF combination matching your desired mode as described in the mode table above. No soldering or programming is required.