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Fenwal Temperature Controls

From the simple to the sophisticated, from mechanical to electronic Fenwal offers a full range of rugged, precision temperature controls and thermostats for high-limit and thermal control applications. Many of these Fenwal controllers have proven themselves in demanding applications for decades.

Please Note: The Fenwal 17000 and 18000 brass thermoswitches have been discontinued as of 2020. We have left some of these obsolete parts on this page for information purposes and have marked them as OBSOLETE. If you place an online order for any of these OBSOLETE parts we will process your order and ship you the cross over stainless steel part number as noted on the product page.



Fenwal Thermoswitch 30000-0, 50-300 deg F, Surface mount, 10 amps
Code: FF 30000-0
Price: $45.00
Quantity in Basket: none
 



Fenwal Thermoswitch 30000-48, 85-250 deg F, Surface mount, 10 amps
Code: FF 30000-48
Price: $45.00
Quantity in Basket: none
 



Fenwal Thermoswitch 30002-0, 50-600 deg F, Surface mount, 10 amps
Code: FF 30002-0
Price: $45.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17000-0 is OBSOLETE, use P/N 17002-0
Code: FF 17000-0
Price: $205.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17021-0 is OBSOLETE, use P/N 17023-0
Code: FF 17021-0
Price: $259.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17002-0, -100-600 deg F, Stainless Steel, open on rise
Code: FF 17002-0
Price: $211.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17023-0, -100-600 deg F, Stainless Steel, close on rise
Code: FF 17023-0
Price: $245.00
Quantity in Basket: none
 



  Fenwal Well 11201-0 for 170XX Thermoswitches, Hex Head with 3/4 inch fitting
Code: FF 11201-0
Price: $269.00
Quantity in Basket: none
 



  Fenwal Well 11204-0 for 170XX Thermoswitches.
Code: FF 11204-0
Price: $375.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17100-0 is OBSOLETE, use P/N 17102-0
Code: FF 17100-0
Price: $280.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17121-0 is OBSOLETE, use P/N 17123-0
Code: FF 17121-0
Price: $280.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17102-0, -100-600 deg F, Stainless Steel, hex head, open on rise
Code: FF 17102-0
Price: $268.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17123-0, -100-600 deg F, Stainless Steel, hex head, close on rise
Code: FF 17123-0
Price: $268.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17200-0 is OBSOLETE, use P/N 17202-0
Code: FF 17200-0
Price: $300.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17221-0 is OBSOLETE, use P/N 17223-0
Code: FF 17221-0
Price: $300.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17202-0, -100-600 deg F, Stainless Steel, block head, open on rise
Code: FF 17202-0
Price: $289.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17223-0, -100-600 deg F, Stainless Steel, block head, close on rise
Code: FF 17223-0
Price: $289.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17300-0 is OBSOLETE, use P/N 17302-0
Code: FF 17300-0
Price: $289.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17321-0 is OBSOLETE, use P/N 17323-0
Code: FF 17321-0
Price: $320.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17302-0, -100-600 deg F, Stainless Steel, Flange Head, open on rise
Code: FF 17302-0
Price: $279.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17323-0, -100-600 deg F, Stainless Steel, Flange Head, close on rise
Code: FF 17323-0
Price: $300.00
Quantity in Basket: none
 



  Fenwal Well 11208-0 for 172XX/173XX Thermoswitches, Hex Head with 3/4 inch fitting.
Code: FF 11208-0
Price: $545.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17800-0 is OBSOLETE, use P/N 17802-0
Code: FF 17800-0
Price: $555.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17821-0 is OBSOLETE, use P/N 17823-0
Code: FF 17821-0
Price: $555.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17802-0, -100-600 deg F, Stainless Steel, Junction Box Immersion, open on rise
Code: FF 17802-0
Price: $390.00
Quantity in Basket: none
 



Fenwal Thermoswitch 17823-0, -100-600 deg F, Stainless Steel, Junction Box Immersion, close on rise
Code: FF 17823-0
Price: $420.00
Quantity in Basket: none
 



Fenwal Thermoswitch 18000-0 is OBSOLETE, use P/N 18002-0
Code: FF 18000-0
Price: $295.00
Quantity in Basket: none
 



Fenwal Thermoswitch 18021-0 is OBSOLETE, use P/N 18023-0
Code: FF 18021-0
Price: $295.00
Quantity in Basket: none
 



Fenwal Thermoswitch 18002-0, -100-600 deg F, Stainless Steel, Coupling Head, open on rise
Code: FF 18002-0
Price: $290.00
Quantity in Basket: none
 



Fenwal Thermoswitch 18023-0, -100-600 deg F, Stainless Steel, Coupling Head, close on rise
Code: FF 18023-0
Price: $290.00
Quantity in Basket: none
 



Fenwal Thermoswitch 18002-21, -100-600 deg F, 316 Stainless Steel, Coupling Head, open on rise
Code: FF 18002-21
Price: $325.00
Quantity in Basket: none
 



Fenwal Thermoswitch 18023-7, -100-600 deg F, Stainless Steel, Coupling Head, close on rise
Code: FF 18023-7
Price: $325.00
Quantity in Basket: none
 


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