S4A-1CN-H 1-Channel Tuya Wi-Fi Relay Switch Module with Protective Housing
S4A-1CN-H, 1-CH, AC/DC 7-32V & USB 5V, 10A Dry Contact, Inching/Self-Locking, Tuya Wi-Fi, Protective Housing
The S4A-1CN-H is a 1-channel smart Wi-Fi relay module encased in a fire-retardant protective enclosure, supporting AC/DC 7-32V and Micro-USB 5V inputs with 10A dry contact switching, inching pulse, self-locking, and Tuya Smart app control.
Product Overview
Engineered for automating garage doors, motorized gates, access control panels, and home lighting, the S4A-1CN-H provides flexible dual-voltage power inputs and isolated Form C relay contacts. Its durable ABS housing protects internal circuitry from dust and accidental contact, while native Tuya Wi-Fi connectivity enables remote switching, timer schedules, and scene automation without a separate gateway.
Why Buy This Product
Universal Pulse Trigger
Provides a clean momentary dry contact pulse ideal for triggering garage door and gate motor push-button inputs.
Protected Electronics
Rugged flame-retardant enclosure guards the circuit board from debris, wire shorts, and accidental contact.
Tuya Smart Linkage
Syncs seamlessly with Tuya security sensors to trigger automatic relay actions based on door status.
Best for These Applications
Garage Door Opener Control
Connects across existing wall console contacts to turn dumb overhead doors into smart Wi-Fi openers.
Access Control Strikers
Triggers electric strikes and magnetic lock power supplies remotely via smartphone app.
Key Advantages
- Dual Voltage Flexibility:Powers from either AC/DC 7-32V gate motor auxiliary rails or standard 5V USB power adapters.
- Configurable Inching Timing:Set momentary pulse duration from 0.5 seconds up to an hour directly within the app interface.
Frequently Asked Questions
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Weight | 0.08 |
| Shipping Weight | 0.12 |
| Channels Count | 1 |
| Switch Type | relay-module |
| Relay Contact Type | Dry Contact (Passive Form C NO/COM/NC) |
| Mounting Type | Surface Screw Mount |
| Input Voltage | AC/DC 7-32V or USB 5V DC |
| Power Supply Options | DC Terminal Blocks (7-32V), Micro-USB 5V |
| Max Load Current | 10A / 2200W |
| Max Load Power | 2200W (Resistive Load) |
| Quiescent Current | < 80 mA |
| Relay Cycle Lifespan | ≥ 1,000,000 operations |
| Working Modes | Inching / Jog (0.5s default pulse), Self-Locking (Toggle) |
| Inching Duration Range | 0.5s to 3600s programmable via app |
| Wireless Protocols | Wi-Fi 2.4GHz (IEEE 802.11 b/g/n), Bluetooth Low Energy |
| App Support | Tuya Smart, Smart Life |
| Voice Assistant Compatibility | Amazon Alexa, Google Assistant |
| Timing Functions | Countdown Timer, Scheduled Timer, Circulate Timer |
| Smart Linkage Triggers | Door Sensor Trigger, Schedule Automation, App Remote Trigger |
| Device Sharing | Yes |
| Housing Material | Flame-Retardant ABS V0 |
| Status Indicators | Power LED (Red), Wi-Fi Pairing LED (Blue), Relay Output LED (Green) |
| Operating Temp | -20°C to 70°C |
| Operating Humidity | 5% to 90% RH |
| Dimensions | 75 x 42 x 20 mm |
| Stock | 10 |
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