440R-N23126 GuardMaster Safety Module Allen-Bradley 24V

Overview

The Allen-Bradley 440R-N23126 is a GuardMaster safety relay designed to provide reliable monitoring and control for industrial safety circuits. Compatible with both 24V AC and DC input, this relay ensures fast, fail-safe operation for critical machine safety applications.

Technical Specifications

• Manufacturer: Allen-Bradley

• Product Line: GuardMaster

• Model / Part Number: 440R-N23126

• Module Type: Safety Relay

• Input Voltage: 24 V AC/DC

• Relay Outputs: Dual-channel outputs for safety monitoring

• Response Time: Typically under 20 ms

• Contacts: Force-guided contacts with positive-opening mechanism

• Mounting: DIN rail or panel mount compatible

• Operating Temperature Range: -25°C to 60°C (-13°F to 140°F)

• Power Consumption: 2 W typical

• Safety Standards: Meets IEC 61508 / ISO 13849 safety requirements

• Dimensions (HxWxD): 90 x 17.5 x 110 mm (3.54 x 0.69 x 4.33 in.)

• Weight: 0.5 kg (1.1 lb)

Key Features

• Monitors emergency stop, safety gates, and light curtains

• Dual-channel output for redundancy and fail-safe operation

• Positive-opening contacts prevent unsafe states

• LED indicators for status monitoring

• Compatible with GuardMaster modular safety systems

Application Scenarios

• Emergency stop circuits on manufacturing lines

• Light curtain and safety gate monitoring

• High-risk machinery requiring SIL2 / PLd compliance

• Safety interlock control for assembly robots

FAQs

Q: Can this relay operate with both AC and DC inputs?
A: Yes, the 440R-N23126 supports 24V AC or DC operation.

Q: What safety standards does it meet?
A: It complies with IEC 61508 and ISO 13849 for machine safety.

Q: How is it mounted?
A: The relay can be installed on a standard DIN rail or directly on a control panel.