Allen-Bradley 440G-L07257 Guardmaster Atlas 5 Guardlock Switch
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Manufacturer AB-SFC
Mfg Catalog # 440G-L07257
North Coast Part # 66081


  • High locking force of 5000 N (1124 lb)
  • Patented self-aligning head
  • Heavy duty die-cast alloy housing
  • Mechanical lock


  • BBM only: N/A

Product Selection

  • Product Family: 440G Atlas 5
  • Model Type: Standard
  • Contacts (Safety/Auxiliary): 2 Normally Closed, 1 Normally Open
  • Solenoid Contacts: 2 Normally Closed 1 Normally Open
  • Solenoid Voltage: 110V AC/DC
  • Actuator: Standard
  • Conduit Entry / Connection Type: 1/2 in NPT Adapter
  • Holding Force (Fzh): 3850N (865 lbs)


  • Cordsets: DC Micro (M12), Female, Straight, 8-Pin, PVC Cable, Red, Unshielded, IEC Color Coded, No Connector, 5 meter (16.4 feet)
  • Cordsets: DC Micro (M12), Female, Straight, 5-Pin, PVC Cable, Red, Unshielded, IEC Color Coded, No Connector, 5 meter (16.4 feet)


  • 889D-F8NB-5
  • 889D-F5NC-5


UPC 61132097762
GTiN 00611320977622
Type Guardlock Switch
Material Metal
Terminal Type Cable Entry PG
Applications For Safety Function
Style Cuboid
Contact Type Not Applicable
Family Brand Name Allen Bradley
Enclosure Type IP65
TC Connection M20 Conduit, 1/2in. NPT adptr
Actuator Standard
Contact Configuration 2 N.C. Safety, 2 N.O Aux
Blade Dimensions 189 mm L x 80 mm W x 56 mm H
Contact Rating 3 A at 125 VAC, 1.5 A at 230 VAC, 2 A at 24 VDC
Sub Brand Atlas 5, Guardmaster
Connection Type M20 Conduit, 1/2in. NPT Adptr

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