C1L
Safety and reliability in a small package
Safety limiter
1/32 DIN - 48x24 mm 
   - Shutdown for: high and low limit, upscale or downscale burnout, power supply  failure
   - Shutdown status retention or automatic/manual reset on power on condition
   - Output relay energized under normal conditions
   - Protection against casual adjustment of threshold
   - Dedicated "reset" key
   - LED for signaling the not acknowledged or acknowledged shutdown condition
   - Reset requires a manual action and is not possible until the shutdown   condition persists
   - Approved in accordance with Factory Mutual (FM) Standard Temperature Limit   
     Switches Class 3545

M4L
Safety and reliability in a small package
Safety limiter
1/16 DIN - 48x48 mm 
   - Shutdown for: high and low limit, upscale or downscale burnout, power supply   failure
   - Shutdown status retention or automatic/manual reset on power on condition
   - Output relay energized under normal conditions
   - Protection against casual adjustment of threshold
   - Dedicated "reset" key and optional digital input for remote reset switch
   - LED for signaling the not acknowledged or acknowledged shutdown condition
   - Reset requires a manual action and is not possible until the shutdown   condition persists
   - Approved in accordance with Factory Mutual (FM) Standard Temperature Limit   
     Switches Class 3545