Allen Bradley 440R-P23071 MSR22LM Safety Relay – 24V DC, 2 N.O. Safety Outputs, 1 N.C. Aux, Muting Function, 45mm Case

The Allen Bradley 440R-P23071 MSR22LM is a muting safety relay designed for advanced safety monitoring applications including emergency-stop circuits, light curtains, and magnetic safety switches. Operating on a 24V DC supply, this compact relay provides two safety outputs (N.O.) and one auxiliary signaling output (N.C.), ensuring reliable machine shutdown and status feedback during hazardous events.

Featuring muting functionality and compliance with Performance Level e (EN ISO 13849-1), the 440R-P23071 is engineered for high-integrity safety applications. Its spring clamp terminals allow fast, vibration-resistant wiring, while the 45mm-wide case offers convenient DIN rail mounting for compact control panel integration. Ideal for complex machine safeguarding systems requiring controlled muting operations, this module provides reliable and configurable safety logic in one robust package.

Technical Specifications

Model: 440R-P23071 Allen Bradley
Series: MSR22LM
Product Type: Muting Safety Relay
Supply Voltage: 24V DC
Voltage Type: DC
Number of Safety Outputs: 2 N.O. instantaneous contacts
Number of Auxiliary Outputs: 1 N.C. signaling contact
Performance Level (EN ISO 13849-1): Level e
Stop Category (IEC 60204): Category 0
Suitable For Monitoring: E-stop circuits, magnetic switches, and optoelectronic protection devices
Connection Type: Spring clamp connection
Mounting Method: DIN Rail (EN 60715 35mm)
Width: 45 mm
Configuration Type: Basic Device
Feedback Circuit: Yes
Muting Function: Yes
Start Input: Yes
Detachable Clamps: No
UL Approval: No

Electrical & Performance Details

• Operating Voltage: 24V DC ±10%
• Safety Outputs: 2 normally open (N.O.) contacts for safety control
• Auxiliary Output: 1 normally closed (N.C.) contact for signaling
• Stop Category: 0 – Immediate power removal
• Monitoring Functions: Emergency-stop buttons, light curtains, safety edges, and magnetic switches
• Feedback Circuit: Integrated for fault detection and reset logic
• Muting Capability: Supports temporary bypassing of safety inputs under safe, controlled conditions
• Reset Type: Manual or monitored start input

Mechanical Specifications

• Width: 45 mm
• Mounting Type: DIN Rail
• Connection Terminals: Spring clamp (vibration-resistant)
• Housing Design: Compact modular case suitable for industrial panels
• Front Indicators: LED status indicators for power, channel status, and muting conditions

Environmental & Application Suitability

• Typical Applications: Conveyor systems, robotic cells, automated packaging machines, and material handling lines
• Use Case: Provides muting logic and safety redundancy for Category 4 / Performance Level e systems
• Installation Environment: Industrial control panels and safety systems requiring compact relay modules
• Compatibility: Works with Allen Bradley Guardmaster series safety components

Compliance & Certifications

• EN ISO 13849-1: Performance Level e (PLe)
• IEC 60204: Stop Category 0 compliance
• CE Marked: Yes
• RCM Certified: Yes (Australia)
• EAC Certified: Yes (Eurasian Economic Community)
• RoHS Compliant: Yes

Key Features & Benefits

✅ Muting function allows safe bypassing of safety inputs for material flow control.

✅ Dual safety outputs (2 N.O.) ensure high redundancy and fail-safe operation.

✅ Auxiliary signaling output for real-time system feedback.

✅ Spring clamp terminals provide secure, maintenance-free connections.

✅ Compact 45mm housing saves panel space while meeting Category 4 / PLe requirements.

✅ Compatible with E-stop, magnetic switches, and light curtains for flexible safety applications.

📦 Order the Allen Bradley 440R-P23071 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 440R-P23071 prices, with fast UK & EU delivery and expert support for muting safety relay integration and Guardmaster safety applications.

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Enhance your machine safety with confidence — Allen Bradley Guardmaster engineered protection, only at Drive Outlet Megastore.