Allen-Bradley 440R-S12R2 Single Input Guardmaster Safety Relay
Already a Customer? Log in to view your pricing
Manufacturer AB-SFC
Mfg Catalog # 440R-S12R2
North Coast Part # 820247


  • Includes single wire safety relay connection which allows for ease of installation and system flexibility
  • Offers a broad range of safety functions
  • Terminals are grouped together by power inputs and outputs for clear connection
  • Provides consistent terminal layouts and configuration allow simplified installation
  • Offers compact solution which saves energy and space on DIN rail
  • Provides versatility through simple logic, reset and timing configurations
  • Includes the Guardmaster Dual GuardLink safety relay, which provides visibility of system status down to the individual guard doors and e-stops when used with GuardLink-enabled smart safety devices


Safety Relay Data

  • Inputs: 1 Dual Channel Universal Input
  • Single Wire Safe Input: N/A
  • Logic Configuration: None
  • Immediate Safety Outputs: 2 N.O.
  • Immediate Auxiliary Outputs: 1 N.C. Solid State
  • Delayed Safety Outputs: N/A
  • Single Wire Safe Output: 1 SWS Output
  • Power Supply: 24V DC
  • Removable Terminals: Removable
  • Reset: Configured Automatic/Manual or Manual Monitored Reset

Safety Relay Information

  • Relay Model Selected: Guardmaster Single Input Safety Relay (SI)


UPC 88563018167
GTiN 00885630181677
Type Single Input, Basic Device, 2-Channel
Applications For Monitoring of Emergency-Stop Circuits, Monitoring of Proximity Switches
Mounting Type Rail
Family Brand Name Allen Bradley
Output 2 Normally Open
Power Supply 24V DC
Blade Dimensions 22.5 mm W x 113.6 mm D x 119.4 mm H
Enclosure 22mm
Sub Brand Guardmaster
Voltage 24 VAC
Standard CCC,KC

Your Product Lists

Log In or register for an account to gain access to the product groups feature!

You can create lists of products for regular needs, special projects, even use one as a wishlist.

Your Part Numbers

Log In or register for an account to assign your company part numbers to products!

No more memorizing or cross-referencing! Map your company's internal part numbers to items, then use your part numbers for searching and ordering.