Allen Bradley 440R-N23130 Safety Relay – MSR127.1T, 230V AC, 3 N.O. + 1 N.C. Contacts, Automatic/Manual Reset, Removable Terminals

The Allen Bradley 440R-N23130 (MSR127.1T) is a Guardmaster single-function safety relay designed for use in emergency stop circuits, magnetic safety switches, and optoelectronic safety applications. Operating on a 230V AC supply, it features three normally open (N.O.) safety outputs and one normally closed (N.C.) auxiliary contact for signalling and monitoring purposes.

With automatic or manual reset functionality, the MSR127.1T provides flexible control depending on machine safety requirements. Rated to Performance Level “e” (EN ISO 13849-1) and supporting Category 0 stop (IEC 60204), this relay ensures reliable and immediate shutdown in hazardous conditions. The removable plug-in terminals simplify wiring and servicing, while the slim 22.5mm-wide housing enables space-efficient panel integration.

Technical Specifications

Model: 440R-N23130 Allen Bradley
Series: Guardmaster MSR
Product Type: Single-Function Safety Relay
Supply Voltage: 230V AC (50 Hz)
Voltage Type: AC
Input Configuration: 1-channel or 1- and 2-channel
Safety Outputs: 3 N.O. contacts
Auxiliary Output: 1 N.C. contact (signalling function)
Reset Mode: Automatic or Manual selectable
Performance Level (EN ISO 13849-1): Level e
Stop Category (IEC 60204): 0
Mounting Type: DIN Rail (35mm top hat)
Connection Type: Plug-in removable terminals
Dimensions (W x H x D): 99 x 114.5 x 22.5 mm

Electrical & Performance Details

• Supply Voltage Range: 230V AC ±10%
• Output Configuration: 3 N.O. safety contacts + 1 N.C. auxiliary
• Input Type: Single or dual-channel monitoring supported
• Reset Function: Selectable automatic or manual reset
• Stop Function: Category 0 (immediate power removal)
• Performance Level: PL e / Category 4
• Feedback Circuit: Yes, for contactor monitoring
• Start Input: Yes (monitored start supported)
• Relay Contacts: Electromechanical type for reliable switching

Mechanical Specifications

• Width: 99 mm
• Height: 114.5 mm
• Depth: 22.5 mm
• Mounting: 35mm DIN Rail
• Connection Type: Plug-in removable terminals
• Housing: Slimline industrial safety relay enclosure

Environmental & Application Suitability

• Typical Applications: Emergency stop monitoring, magnetic interlock switches, light curtain safety systems
• Monitoring Capability: Single or dual-channel configuration for redundancy
• Stop Function: Category 0 (immediate machine stop)
• Suitable For: E-stop buttons, optical sensors, and safety switches
• Installation Environment: Industrial control panels and safety enclosures

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

✅ Three safety outputs ensure reliable circuit isolation in critical systems.

✅ One N.C. auxiliary output provides system status feedback.

✅ Automatic or manual reset options for flexible machine integration.

✅ Category 0 stop function for rapid shutdown capability.

✅ Performance Level e for top-tier safety compliance.

✅ Compact 22.5mm housing saves valuable panel space.

✅ Removable terminals simplify wiring and servicing tasks.

📦 Order the Allen Bradley 440R-N23130 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 440R-N23130 prices, with fast UK & EU delivery and expert support for Guardmaster safety relays and industrial automation systems.

Check stock now or request a quote.

Safeguard your automation systems with the Allen Bradley MSR127.1T — a reliable, high-performance safety relay trusted by engineers worldwide, available at Drive Outlet Megastore.