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Partlow Mechanical Controllers 

Partlow LFHL Temperature Limit Device --

An indicating, high-temperature limit device with fail-safe feature for sensing element failure.  Six operating ranges covering 0ºF to 1100ºF.  Can be panel or surface mounted.


Standard Features

  • Black temperature indicating pointer 
  • Red setpoint indicator 
  • Internal setpoint adjustment to prevent tampering 
  • Red indicator light for normal operation 
  • Front panel RESET button 

Key Specifications

  • +/- 1% Accuracy 
  • SPDT switch: 15A resistive; 250VAC max. 
  • 8.63"W x 8.0" H x 4.28" D 
  • 1 Year warranty 

Agency Approvals

  • FM Approved 
  • CSA Certified 

Partlow ZF79 Non-Indicating, Temperature Limit Device --

A single switch, non-indicating temperature controller with front panel setpoint. Twelve temperature ranges covering -30ºF to 1100ºF. Can be panel or surface mounted.



 
 

Standard Features

  • 1% Sensitivity (hysteresis) 

Optional Features

  • Weather resistant enclosure 
  • 0.5% Sensitivity (hysteresis) 

Key Specifications

  • +/- 1% Accuracy 
  • SPDT switches: 500VA non-inductive, 50VA inductive; 250VAC max. 
  • 6.13" W x 5.5" H x 3.5" D overall 
  • 4.75" W x 5.0" H panel cutout 
  • 1 Year warranty 

Agency Approvals

  • UL Listed 

  • CSA Certified 

Partlow N79-79 Non-Indicating, Dual Switch Controller  --

A compact, dual switch, non-indicating temperature controller with unlimited differential between setpoints. Setpoints may be set at the factory or by the user. Used where setpoint changes are seldom needed. Available in a wide variety of ranges covering -30ºF to 1100ºF. This device is intended for surface mounting.



 

Standard Features

  • Reverse or direct acting 
  • 0 to 100% switch differential 

Key Specifications

  • +/- 1% Accuracy 
  • SPDT switches: 500VA non-inductive, 50VA inductive; 250VAC max. 
  • 5.44"W x 5.13" H x 2.19" D 
  • 1 Year warranty 

Agency Approvals

  • UL Listed 
  • CSA Certified 

 
 


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