1440-RMA00-04RC | Allen-Bradley | Master Relay Module

Overview

The 1440-RMA00-04RC Master Relay Module from Allen-Bradley is designed for use in automation systems, providing advanced relay control with DeviceNet communication. It offers four DPDT relays, expansion options, and configurable time delays.

Communications

• Protocol: DeviceNet (standard)
• Baud Rate: 125kb, 250kb, 500kb
• Connection: Side connectors for interconnecting modules
• RS-232: Via mini-connector or terminal base unit at a fixed baud rate of 19200
• EDS: Available Electronic Data Sheet supports most DeviceNet systems

Indicators

• Module Status: Red/green LED
• Network Status: Red/green LED
• Relay Status: Individual red LEDs for each relay (1-4)

Relay Features

• Number of Relays: 4 DPDT relays (2 Form C)
• Additional Relays: Up to 8 more with XM-441 Expansion Modules
• Contact Ratings: 250V AC, 3A resistive
• Failsafe: Normally energized or de-energized
• Time Delay: Adjustable from 0 to 25.5 seconds
• Voting Logic: Supports complex logic for alarm and relay management
• Reset: Local, remote, or via serial/DeviceNet command

Power Requirements

• Input Voltage: 24V DC
• Consumption: 200mA maximum
• Heat Production: 3.4 Watts (11.6 BTU/hr)

Environmental Conditions

• Operating Temperature: -20°C to +65°C (-4°F to +149°F)
• Storage Temperature: -40°C to +85°C (-40°F to +185°F)
• Humidity: 95% non-condensing

Physical Specifications

• Dimensions: 3.8” (H) x 3.7” (W) x 3.7” (D)
• Terminal Screw Torque: 7 lb-in (0.6Nm)

Certification

• UL: Ordinary locations, Class I Division 2
• CSA: Certified for process control and hazardous locations
• ATEX: Compliant with European directives for explosive atmospheres
• CE: EMC directive compliance for the European market
• C-Tick: Compliant with Australian radiocommunications act standards