Allen Bradley 440R-N23119 Safety Relay – MSR126.1R, 115V AC, 2 N.O. Contacts, Dual-Channel, Monitored Manual Reset, Fixed Terminals

The Allen Bradley 440R-N23119 (MSR126.1R) is a Guardmaster single-function safety relay designed for reliable monitoring of emergency stop circuits and magnetic safety switches. Operating at 115V AC, it provides two normally open (N.O.) safety contacts for safe machine shutdown and complies with Performance Level e (EN ISO 13849-1) and Category 4 safety requirements.

This model features a monitored manual reset configuration for enhanced operator control and includes a dual-channel input for redundancy. Its compact 22.5mm housing and fixed screw terminal connections allow for secure and straightforward DIN rail installation. Ideal for emergency stop and interlock circuit applications, the MSR126.1R ensures fast, dependable safety performance in industrial environments.

Technical Specifications

Model: 440R-N23119 Allen Bradley
Series: Guardmaster MSR
Product Type: Single-Function Safety Relay
Supply Voltage: 115V AC (50 Hz)
Voltage Type: AC
Safety Outputs: 2 N.O. contacts
Auxiliary Outputs: None
Input Configuration: Dual-channel
Reset Function: Monitored manual
Performance Level (EN ISO 13849-1): Level e
Stop Category (IEC 60204): 0
Mounting Type: DIN Rail (35mm top hat)
Connection Type: Fixed screw terminals
Dimensions (W x H x D): 75 x 110 x 22.5 mm

Electrical & Performance Details

• Supply Voltage Range: 115V AC ±10%
• Output Configuration: 2 N.O. safety outputs
• Input Type: Dual-channel for redundancy
• Reset Function: Monitored manual reset
• Stop Function: Category 0 (immediate stop)
• Feedback Circuit: Yes (for contactor monitoring)
• Start Input: Yes (monitored start supported)
• Voltage Type: AC (50/60 Hz)
• Connection Type: Screw terminal wiring

Mechanical Specifications

• Width: 75 mm
• Height: 110 mm
• Depth: 22.5 mm
• Mounting: Standard 35mm DIN rail
• Housing Type: Compact modular enclosure
• Connection Type: Fixed screw terminals
• Detachable Clamps: No

Environmental & Application Suitability

• Typical Applications: Emergency stop monitoring, magnetic switch circuits, and guard door safety systems
• Monitoring Capability: Dual-channel input with contactor feedback monitoring
• Stop Function: Category 0 (instantaneous power removal)
• Suitable For: E-stop circuits and magnetic interlock applications
• Installation Environment: Industrial control panels and machinery safety systems

Compliance & Certifications

• Performance Level: PL e (EN ISO 13849-1)
• Safety Category: Category 4 (IEC 62061)
• Stop Category: 0 (IEC 60204)
• UL / cUL Listed: Yes
• BG BIA Approved: Yes
• CE Marked: Yes
• RoHS Compliant: Yes

Key Features & Benefits

✅ Dual-channel input monitoring enhances fault detection and reliability.

✅ Two N.O. safety outputs for redundant circuit control.

✅ Monitored manual reset ensures safe operator control.

✅ Performance Level e and Category 4 certified for high-risk applications.

✅ Compact 22.5mm housing conserves control panel space.

✅ Fixed screw terminals provide stable, vibration-resistant connections.

✅ Category 0 stop delivers immediate disconnection of power for maximum safety.

📦 Order the Allen Bradley 440R-N23119 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 440R-N23119 prices, with fast UK & EU delivery and expert support for Guardmaster safety relays and emergency stop systems.

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Ensure machine and operator safety with the Allen Bradley MSR126.1R — reliable, dual-channel protection for industrial automation, available now from Drive Outlet Megastore.