Schneider RXM4AB1BD Intermediate Relay

Description

Schneider RXM4AB1BD Intermediate Relay

Product Overview

The Schneider Electric RXM4AB1BD is a compact, miniature plug-in electromechanical relay belonging to the Harmony Electromechanical Relays (TeSys/Harmony RXM) series. Featuring a 4 C/O (4PDT – 4 Changeover / Pole Double Throw) contact configuration, it is designed for switching signal and control circuits in industrial automation and electrical panels.

It incorporates a lockable test button for manual testing, an integrated LED indicator for coil status, and a mechanical flag indicator for contact position verification.

Technical Specifications

Key Advantages

• High Circuit Density: Offers 4 changeover contacts in a compact footprint, allowing multiple independent control lines to be switched by a single relay.
• Diagnostics Made Simple: Built-in LED visually confirms coil energization, while the mechanical flag indicator shows actual contact position at a glance.
• Convenient Manual Testing: The integrated lockable test button permits maintenance personnel to override the relay manually for circuit testing without applying coil voltage.
• Reliable Contact Material: Silver Nickel (AgNi) contacts provide low resistance and excellent electrical endurance for general-purpose switching applications.
• Easy Installation & Service: Plugs directly into standard RXZE series DIN-rail socket bases, enabling quick tool-free replacement during panel maintenance.

Important Usage & Installation Precautions

• Correct Polarity & Coil Voltage: Designed specifically for 24 V DC operation. Observe correct DC coil polarity when wiring, especially since the internal LED status indicator is polarity-sensitive.
• Avoid Overloading Contacts: The maximum rated continuous current is 6 A per pole. For heavy inductive AC loads (e.g., solenoid valves, motor contactors), account for inrush currents or use appropriate contact arc suppressors.
• Socket Compatibility: Always pair with matching RXM 4 C/O sockets (such as RXZE2M114, RXZE2S114M, or RXZE1M4C). Ensure retaining clips (e.g., RXZ400) are used to hold the relay securely in high-vibration environments.
• Test Button Usage: Use the manual test button strictly during commissioning or troubleshooting. Do not leave the test button locked during normal automated operation.
• Heat Dissipation in Panels: When mounting multiple relays tightly side-by-side on a DIN rail, ensure adequate control cabinet ventilation if all coils are continuously energized.

Applications

• PLC Output Interfacing: Amplifies PLC digital outputs to drive higher-current loads or isolate sensitive automation equipment.
• Control Panel Logic: Serves as intermediate logic, interlock, or signal multiplier in electrical switchboards and control cabinets.
• HVAC & Building Automation: Manages damper actuators, fan speeds, valve controls, and alarm signaling.
• Industrial Machinery: Signals sequencing, start/stop logic, and safety interlocks in packaging machinery, conveyors, and assembly lines.
• Power Distribution & Substation Control: Used for telemetry, auxiliary contact multiplication, and remote signal triggering.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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