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RM4W Wireless Relay Module 4 Channel with ESP-12F

RM4W is a compact 4-channel Wi-Fi relay module based on the ESP-12F (ESP8266) with on-board 3.3V regulator, DIN-rail mount option, and relay outputs rated to drive resistive loads up to 10A.

425.00 EGP

In stockSKU 3496300137169
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RM4W Wireless Relay Module 4 Channel with ESP-12F

The RM4W is a 4-channel Wi-Fi module based on the ESP-12F module which is based on the ESP8266 chip from Espressif. The ESP-12F includes 4MB of flash and supports 802.11b/g/n Wi-Fi SOC. The ESP-12F can be programmed serially via the 4-pin header. The card is well-protected, filtered, and easy to install. The RM4W outputs can drive loads up to 10A (resistive load).

Features
  • Based on ESP-12F Wi-Fi module.
  • On-board 3.3V regulator AMS1117-3.3V.
  • Power input is filtered for noise reduction.
  • Green LED for power indication.
  • Operating voltage DC12V.
  • Four output relays with red LED indicators.
  • Both normal open and normal close terminals are available.
  • Output terminals are available through a 5mm 2-pin K128 screw clamp.
  • Easy firmware uploading using a 4-pin header ( 3.3V, Tx, Rx, GND ).
  • Reset push button switch is included.
  • Two yellow LEDs for Tx and Rx signal indication.
  • DIN Rail mountable.
  • Four (Ø 3.5mm) mounting holes for easy installation.
  • Dimensions: 130 X 50 X 18mm.
PINOUT

Specifications
Parameter Value
Model RM4W
Core Module ESP-12F (ESP8266) — 4MB flash, 802.11b/g/n
Operating Voltage DC 12V
Onboard Regulator AMS1117-3.3V
Relay Channels 4 independent relays
Contact Types NO and NC contacts per channel
Terminal Type 5mm 2-pin screw-clamp
Max Switching Load Up to 10A (resistive load) per relay
Indicators Power (green)
TX/RX (yellow)
Relay status (red)
Programming Header 4-pin serial header (3.3V, TX, RX, GND)
Mounting Options Mounting holes / PCB carrier / PCB bracket / DIN-rail
Dimensions 130mm x 50mm x 18mm
PCB Protection Input filtering and protection circuitry

Applications
  • Home and building automation for Wi-Fi controlled lighting, pumps and small loads.
  • IoT relay control where wireless connectivity and remote switching are required.
  • Prototyping and development platforms that require serial firmware flashing and quick relay interfacing.
  • Small industrial control panels where DIN-rail mounting and secure screw-terminal wiring are needed.
  • Remote switching for test equipment, CCTV, gate controllers and general PLC adjuncts.
Package Contents
  • 1x RM4W Wireless Relay Module 4 Channel with ESP-12F.
Documents
Manual RM4W
Test Code Download
Weight 80 g
Dimensions 150 × 100 × 20 mm
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