Thermo Scientific™

Ramsey™ Conveyor Protection Switches

Protect your equipment, prevent accidents and reduce unscheduled shutdowns with the Thermo Scientific™ Ramsey™ Conveyor Protection Switches. The Belt Misalignment Switch (Run Off Switch) and Safety Cable Pull Switch (Pull Cord Switch) are now available with network addressable modules. Ramsey conveyor safety switches also include the Tripper Position Switch. All are used for position information, control signals, and to identify potentially hazardous situations with your process equipment. They utilize a rugged, heavy-duty design and are built to last.

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The Ramsey™ Conveyor Protection Switches Feature:
Thermo Scientific Ramsey Belt Misalignment Switch (Run off Switch)

  • Used to monitor position and tracking of conveyor belts
  • Mounts on conveyor structure and adjusts so roller arm is the proper distance and angle from outside edge of the belt
  • If belt drifts out of alignment, it contacts the roller actuator arm, which rotates the actuation shaft and triggers the belt misalignment alarm signal

Thermo Scientific™ Ramsey™ Safety Cable Pull Switch (Pull Cord Switch)

  • Used as an emergency shutdown device for conveyors or other equipment
  • Meets OSHA and MSHA requirements for safety shutdown devices
  • Safety pull cables are attached to the actuating arm of the switch
  • Pull cable rotates the actuating arm and actuating shaft if force is applied
  • Switch enters a tripped and locked position at a 20° rotation
  • Actuating shaft has two cams; each cam simultaneously actuates an independent SPDT micro-switch for shutdown and alarm signals

Thermo Scientific™ Ramsey™ Tripper Position Switch

  • Often used to indicate the position of a tripper on a conveyor with multiple discharge points
  • Can be used anywhere a heavy duty limit tripper switch with physical activation is needed

Agency Approvals: Models with CSA approval for Class II; Division 1 and 2; and Groups E, F, and G are available