440R-N23135 Allen-Bradley Guardmaster MSR127RP Safety Relay 24V AC/DC Monitored Manual Reset

Description:

• Genuine Allen-Bradley Guardmaster safety relay designed for monitoring emergency stop circuits, safety gates, and light curtains
• MSR127RP Series A safety relay with 24V AC/DC supply voltage
• Features monitored manual reset for enhanced machine safety and compliance
• Supports dual-channel safety inputs with 1 NC, 2 NC, and light curtain (OSSD) input compatibility
• Provides 3 Normally Open (NO) safety outputs and 1 Normally Closed (NC) auxiliary output
• Compact 22.5 mm housing saves valuable DIN rail panel space
• Removable screw terminal blocks simplify installation and maintenance
• Designed to achieve Category 4, Performance Level e (PLe), and SIL CL 3 safety requirements when properly applied
• Ideal for emergency stop circuits, guard door monitoring, safety interlocks, light curtains, packaging machinery, conveyors, robotic cells, and industrial automation systems
• Part of the Allen-Bradley Guardmaster MSR family and remains an active Rockwell Automation product.

Specifications:

• Manufacturer Name: Allen-Bradley (Rockwell Automation)
• Part Number (MPN): 440R-N23135
• Legacy Model: MSR127RP
• Series: A
• Product Series: Guardmaster MSR
• Product Type: Safety Relay
• Supply Voltage:
  • 24 VAC
  • 24 VDC
• Reset Type: Monitored Manual Reset
• Safety Inputs:
  • 1 NC
  • 2 NC
  • OSSD Light Curtain Inputs
• Safety Outputs: 3 Normally Open (NO)
• Auxiliary Outputs: 1 Normally Closed (NC)
• Terminal Type: Removable Screw Terminal Blocks
• Mounting: 35 mm DIN Rail
• Housing Width: 22.5 mm
• Response Time: 15 ms
• Power Consumption: 2 W Maximum
• Rated Operational Current:
  • 5 A @ 250 VAC (AC-1 / AC-15)
  • 3 A @ 24 VDC (DC-13)
• Safety Rating:
  • Category 4 (EN 954-1 / ISO 13849-1)
  • Performance Level e (PLe)
  • SIL CL 3 (IEC 62061)
• LED Status Indicators
• Applications:
  • Emergency Stop Monitoring
  • Guard Door Monitoring
  • Safety Gates
  • Light Curtains
  • Machine Safety
  • Industrial Automation
  • Robotics
  • Packaging Equipment
  • Conveyors

Dimensions:

• Housing Width: 22.5 mm
• Mounting: 35 mm DIN Rail

Weight:

• Approximate Weight: 0.23 kg (0.51 lb).