X-21s™ | Four Relay Form C / SPDT Expansion Module
X-21s expansion module with four relays can be controlled over the internet with an X-400 or X-600M controller.
One or more X-21s expansion modules can be connected to an X-400/X-600M controller with an expansion cable. The expansion cable provides both power and communications to the expansion modules.
The X-400/X-600M are multi-function web-enabled industrial I/O controllers. They perform control, logic, and monitoring functions similar to that of a Programmable Logic Controller (PLC). However, unlike a PLC, these controllers are designed for web-based applications from the ground up.
No add-on software or hardware is required. The controllers can be fully configured, programmed and tested directly in the device using its built-in web server and a standard web browser. The web setup pages are intuitive and easy to use and do not require special programming skills.
The X-400/X-600M controllers, together with expansion modules, such as the X-21s, provide an easy, flexible, and reliable way to monitor and control systems and devices over a network. The X-21s is suitable for use with moderate loads such as solenoid valves, alarms, and indicator lights.
Other expansion modules with different I/O combinations are also available.
Tank Battery Level Monitoring with Pump and Valve Control
- Four, Form C/SPDT relays (independently controlled)
- Voltage: 125VAC, 28VDC
- Current: 2.5A
- LED indicators for relay and power status
- Operating Temp: -40°F to 122°F (-40°C to 50°C)
- Storage Temp: -40°F to 185°F (-40°C to 85°C)
- Removable terminal connector
- Powered through expansion bus - no separate power supply connections are required
- Requires an X-400 or X-600M controller
- Great for moderate-load applications including:
- Solenoid valves
- Indicator lights
- and much more...
X-21s | Four Relay Expansion Module
Relays: 4 Form C / SPDT (Form C)
(125VAC, 28VDC, 2.5A)
9-28 VDC (supplied via the X-400 or X-600M controller, 24V recommended)
Please contact our sales department for quantity discounts.