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FM Approved Temperature High Limit Controls

Author: Finn & Conway, Inc. | Date Submitted: Thursday, 06/18/2020


Panel Mount Temperature Controls L91 & L41
(L91 DIN Rail Mount is available)



Oven - Furnaces - Kilns

Hot Plates / Melt Pots

Food Service Equipment

Environmental Chambers

Sterilizers / Autoclaves


Features L91 & L41:

3-Year Warranty

Universal Temperature Input

Configurable Display Logic - SAFE

Remote Reset Digital Input

Simple to Use & Configure

Up to 2 Outputs

PC Configurable

Serial Communications (option)

Meets NFPA


Future Design Controls FM Approved L Series L91 1/16 DIN and L41 1/4 DIN provide temperature limit protection in process applications where FM approvals are required. The L91/L41 meet the NFPA National Fire Protection Association applicable to excess temperature limit controls when used in ovens/furnaces to display both temperature and setpoint values.


With universal temperature input, up to two outputs, fast scan rates, remote reset, 3-Year Warranty, user friendly prompts and more make the L Series L91 and L41 the right choice for safety protection.




DIN Rail/Surface Mount Temperature Controls Series 7L



Features Series 7L

DIN Rail or Surface Mount

Compact - Simple - Reliable Design

Easy to Use

Remote Reset Digital Event Input

Dual F / C Temperature Ranges

Output: 5A Form C Relay (SPDT)

Low Voltage Power Input available




Future Design Controls FM Approved High Limit Series 7L allows for DIN Rail or Surface Mounting providing hi-limit protection for process applications. Also available with a flat base and recessed setpoint knob when space is at a premium.





High Limits Controls Additional Page Links

L91 1/16 DIN and L41 1/4 DIN
DIN Rail/Surface Mount Series 7L


Agency Approvals

UL Approval.pdf

     (L41 is UL Listed while the L91 is UR Component Recognized)

UL Conditions of Acceptability: FDC-L91.pdf

CSA Approval.pdf




EU_REACH Compliance.pdf

RoHS-3 Compliance.pdf



Future Design Controls offers a broad range of standard & OEM custom temperature and process control, recording and operator interface products for industrial, medical and scientific machinery and equipment.

Both standard products and custom OEM's solutions offer the most recent hardware technology, powerful, flexible and easy to use application software and features to help customers grow their business.


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