440T Rotary Trapped Key Switches

ab guardmaster 440T rotary switches smlThe Rockwell Automation Guardmaster™ safety product - Prosafe™ rotary switches are used for electrical isolation of machinery to enable safe access. Once the power has been turned off, the key can then be withdrawn and used in the next sequence of operation such as unlocking an access hatch or allowing valves to be operated. The rotary switch can either be mounted in a panel or purchased in an IP65 enclosure. The rotary switch is available with 4 poles, either 4 N.C. or 2 N.C. and 2 N.O.


  • 316 stainless steel keys
  • Direct drive operation—positively opens contacts
  • IP 65 rated enclosure—water and dust resistant
  • Stainless steel dust cap included
  • Up to 100A isolation
  • 4 N.O. or 2 N.O. and 2 N.C. contacts