AB ALLEN-BRADLEY

440RE21358 Allen-Bradley Guardmaster MSR122E Expansion Safety Relay 24VAC/DC 6NO 1NC DIN Rail

$199.99 CAD

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Description:

Genuine Allen-Bradley Guardmaster MSR122E expansion safety relay for machine safety and emergency stop systems
Designed to expand the number of safety outputs in Guardmaster safety relay systems
Operates on 24 VAC/DC control voltage
Features 6 Normally Open (NO) safety outputs and 1 Normally Closed (NC) auxiliary output
Accepts 1 NC or 2 NC monitored safety input configuration
Supports automatic or manual reset depending on system configuration
Compact 35 mm DIN rail mounting design for easy control panel installation
LED status indicators provide clear diagnostics for power and relay status
Suitable for emergency stop circuits, safety gates, light curtains, and machine guarding applications
Discontinued by Rockwell Automation; available for replacement and maintenance of existing systems.

Manufacturer Name: Allen-Bradley (Rockwell Automation)
Part Number (MPN): 440RE21358
Catalog Number: 440R-E21358
Product Series: Guardmaster MSR122E
Product Type: Expansion Safety Relay
Supply Voltage:
- 24 VAC
- 24 VDC
Safety Inputs:
- 1 NC
- 2 NC
Safety Outputs: 6 Normally Open (6 NO)
Auxiliary Outputs: 1 Normally Closed (1 NC)
Mounting Type: 35 mm DIN Rail
Terminal Type: Fixed Screw Terminal Block
Reset Type: Automatic / Manual
Indicator Type: LED
Power Consumption: 3 W Max
Wire Size:
- 24 AWG to 12 AWG (0.2–3.3 mm²)
Impulse Withstand Voltage: 2.5 kV
Protection Rating:
- IP40 Housing
- IP20 Terminals
Operating Temperature: -5°C to +55°C
Mechanical Life: 5,000,000 Operations
Contact Material: Silver Tin Oxide (AgSnO₂)
Safety Category: Category 4 (EN 954 / ISO 13849-1)
Certifications: UL Listed, CE, CSA
Applications: Emergency Stop Systems, Safety Gates, Machine Guarding, Light Curtains, Industrial Automation, Safety Control Panels.