WebRelay-Quad™ | 4 Web-Controlled Relays

Price range: $209.99 through $309.99

The WebRelay-Quad streamlines relay control with powerful yet accessible options, including a conditional and scheduled logic builder with intuitive drop-down menus, seamless open API integration via your own software, or communication using industrial protocols like MQTT and Modbus TCP/IP. Note: This is the new WebRelay-Quad. See the original WebRelay-Quad here.
  • 4 Relays
  • Ethernet, Cellular, or WiFi
  • 9-28VDC and/or POE
Cellular and WiFi are Now Available. Note that X-WR-444CW and X-WR-444W models include cellular and WiFi capability respectively, which allows for more flexibility for your application.

Global Cellular Coverage. Discuss international cellular options with a sales engineer.

Frequently Bought Together

Select a Cellular Data Plan

Cell plan prices are annual. Plans auto-renew on the anniversary of activation.

Total: $209.99

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WebRelay Quad (X-WR-444) Product Main Graphic, showing the applications and communication protocols related.

The WebRelay-Quad makes relay control simpler than ever. Options include using our conditional and/or scheduled logic builder with easy drop-down menus, sending commands to the device from your own software, or via industrial communication protocols like Modbus TCP/IP.

WebRelay-Quad Features

  • Simple Web Dashboard
  • Password Protected
  • Automatic Reboot
  • Remote Relay Control

WebRelay-Quad Applications

  • Pump & Motor Control
  • Lighting Control
  • Network Device Rebooting
  • Security Lock Systems

Part Numbers:

  • X-WR-444-I (standard 9-28VDC line power)
  • X-WR-444-E (POE and/or standard 9-28VDC line power)
  • X-WR-444W-I (WiFI, standard 9-28VDC line power)
  • X-WR-444CW-I (Cellular & WiFi, standard 9-28VDC line power)

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Integration Icon

Integration Ready

We support HTTP GET, MQTT, Modbus TCP/IP, XML, JSON, SNMP, and our Cloud API with more on the way.

No-Code Logic Icon

No-Code Programmable Logic

Our intuitive Task Builder empowers you to build custom logic using drop-down menus in an if-this-then-that flow.

Peer-to-Peer Icon

P2P Networking & Remote I/O

Devices can communicate through Peer-to-Peer (P2P) networking to share I/O among other ControlByWeb controllers, assign any device as master, set up multiple masters, and link remote inputs and relay control.

Email Notifications Icon

Email Notifications

Stay in control of operations with real-time monitoring. Add intelligence to your emails through programmable logic to instantly send notifications to the right people and eliminate false alarms.

Built-In Firmware Icon

Easy-to-Use Embedded UI

Our devices come with a simple embedded user interface that will enable you to easily monitor, manage, and control ControlByWeb PLCs from any standard web browser.

Data Logging Icon

Data Logging

Enjoy scheduled and conditional logging with email and FTP log exports. Add the optional ControlByWeb Cloud for remote access and downloadable logs.

Cloud Compatible Icon

Cloud Compatible

Enhance your capabilities with the ControlByWeb Cloud. Gain enhanced features such as simplified remote device access, data logging, and advanced analytics.

Security Icon

Trusted Device Security

Our controllers have no built-in OS or file system, making them less prone to vulnerabilities. Third-party consultants and government agencies test the cybersecurity of our controllers.

IIoT Icon

IIoT Monitoring & Control

Access the device directly through an assigned IP address. Set up your network settings the way you want, to limit or allow remote access through the cloud.

International Plans

ControlByWeb cellular devices can be used in different countries all over the world. See a list of countries that can use cellular, or reach out to our Sales Engineers to learn more.

Wide Carrier Coverage

eUICC (eSIM) technology allows ControlByWeb cellular devices to operate across multiple carriers. This allows us to optimize cellular coverage based on your location.

No WiFi Necessary

Cellular simplifies your installation and fits where no wired infrastructure exists. There’s no need for third-party resources or IT intervention—everything you need from a logic controller is included with the X-WR-444CW.

Primary or Backup

With the X-WR-444CW, you have the option to use Ethernet as the primary connection to the network and cellular as a failover. This allows logging, remote access, and email alerts even if Ethernet fails.

Built-In Connectivity

The X-WR-444CW includes an omnidirectional antenna for use with the embedded LTE-M cellular radio. The antenna is FCC compliant and will not cause interference when installed correctly.

Configurable Status Page

The X-WR-444CW is powered by a lightweight, built-in user interface. Cellular devices have additional settings within the UI where users can review their signal strength, see registration status, set cellular mode and ping interval, and more.

Primary or Backup

With the X-WR-444CW, you have the option to use Ethernet as the primary connection to the network and cellular as a failover. This allows logging, remote access, and email alerts even if Ethernet fails.

Built-In Connectivity

The X-WR-444CW includes an omnidirectional antenna for use with the embedded LTE-M cellular radio. The antenna is FCC compliant and will not cause interference when installed correctly.

Configurable Status Page

The X-WR-444CW is powered by a lightweight, built-in user interface. Cellular devices have additional settings within the UI where users can review their signal strength, see registration status, set cellular mode and ping interval, and more.

WebRelay-Quad Case Studies

 

Specifications


Models
  • X-WR-444-I
  • X-WR-444-E
  • X-WR-444CW-I
  • X-WR-444W-I
Power Requirements
  • Voltage:
    • X-WR-444-I: 9-28VDC
    • X-WR-444-E: PoE and/or 9-28VDC
    • X-WR-444CW-I: 9-28VDC
    • X-WR-444W-I: 9-28VDC
    • (0.44–12.94 Watts)
  • Max Current:
    • X-WR-444-I/W/CW: 320mA Max
    • X-WR-444-E: 477mA Max
Relay Contacts
  • Number of Relays: 4
  • Max Voltage: 28VAC, 24VDC
  • Max Current: 3A
  • Contact Type: SPDT (Form C)
  • Load Type: General Purpose
  • Contact Resistance: < 50 milliohms initial
  • Contact Material: AgSnO2
  • Electrical Life: 100K cycles (Typical)
  • Mechanical Life: 10M cycles (Typical)
  • Environmental Rating: Over voltage Category II, Pollution Degree 2
  • Relay Modes: ON/OFF or Pulse
  • Pulse Timer Duration: 0.1 to 86,400 Seconds (1-day)
Network
  • Type: 10/100 Base-T Ethernet Port
  • Setup: Static IP address assignment. TCP port selectable
  • Wireless: WiFi Communication (X-WR-444CW/W models only)
  • Cellular: Cellular Modem (X-WR-444CW model only)
Connectors
  • Power & Relays 1-4: 14-Position, 3.81mm terminal spacing, Removable. For 16-28 AWG wire.
  • Network: 8-pin RJ-45
Wireless (X-WR-444CW/W Only)
  • Network Standards: IEEE 802.11 b/g/n
  • Frequency Band: 2.412 – 2.462 GHz
  • Wi-Fi Security Standards: WPA2, WPA3
  • Network Settings: DHCP or Static
LED Indicators
  • Number of LEDs: 7
    • Power on
    • Relay coil energized 1-4
    • Network linked
    • Network activity
Physical
  • Operating Temperature: -40°F to 150°F (-40°C to 65.5°C)
  • Size:
    • 1.41in (35.7mm) wide
    • 3.88in (98.5mm) tall
    • 3.1in (78mm) deep (not including connector)
  • Weight: 5 oz (142 grams)
  • Enclosure Material: Lexan 940 Polycarbonate Plastic
  • Enclosure Flame Rating: UL94 V0
Protocols
  • HTTP, HTTPS, SSL, XML, MQTT, Modbus TCP/IP, SNMP, SMTP, Remote Services
Password Settings
  • Password protection on setup page: Yes
  • Password protection on control page: Optional
  • Password Encoding: Base 64
  • Password Length: 10 Characters
Electromagnetic Compliance
  • IEC CISPR 22, CISPR 24
  • EU EN55024, EN55022
  • X-WR-4R3-I: FCC 47CFR15 (Class B)
  • X-WR-4R3-E (Updated): FCC 47CFR15 (Class A)
Product Safety Compliance
  • IEC 61010-1

Manuals & Downloads



Firmware

400 Series Firmware v3.12 Patch Notes (PDF)

400 Series Firmware v3.13.7.9 Patch Notes (PDF) (Latest)

X-WR-444

X-WR-444 Firmware v3.12.2.5 (for firmware versions 3.0 and higher)

X-WR-444 Firmware v3.13.7.9 (for firmware versions 3.12 and higher)

X-WR-444W

X-WR-444W Firmware v3.12.2.5 (for firmware versions 3.0 and higher)

X-WR-444W Firmware v3.13.7.9 (for firmware versions 3.12 and higher)

X-WR-444CW

X-WR-444CW Firmware v3.12.2.5 (for firmware versions 3.0 and higher)

X-WR-444CW Firmware v3.13.7.9 (for firmware versions 3.12 and higher)

3D Model

WebRelay Quad 3D Model (.stp)

Accessories


12VDC International Power Supply

12VDC International Power Supply

24V DIN Rail Power Supply

24V DIN Rail Power Supply

Blue Ethernet Cable

Ethernet Cable

12VDC Power Supply

Power Supply | 12VDC

Live Demo With One of Our Sales Engineers

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Set up a one-on-one Q & A with one of our experts. We’ll help you find the best solutions for your next project and walk you through a demonstration.


Low on time? Watch a pre-recorded demo instead:

WebRelay Series Setup and Programming Demo

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