Anderson-Bolds - Serving Customers for 80 Years    Home Up Order Feedback Contents About Us Careers Contact Us Search
   Fire Protection Thermostats Thermoswitches Fenwal Parts Form


McAfee Secure sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams

Click here to shop online

Visit Our Technical Blog for Detailed Product Discussions

Featured Products:


Anderson-Bolds has recently added the Elster American Meter
Gas Meter to our Energy Management product list. Please call us for details.
American Meter Gas Meter


Fenwal Mechanical Temperature Switches ~ THERMOSWITCHES

-----> Shop online for Fenwal Thermoswitches <-----

FENWAL Series 17000 and 18000 Probe style THERMOSWITCHES

THERMOSWITCH Temperature Controllers are tubular devices featuring an outer shell made of high-expanding metal and internal struts made of low-expanding metal, with a pair of electrical contacts between them. When the temperature of the media being measured changes, a corresponding change in the spacing of the contacts provides instant on/off control with a small differential, resulting in +1F precision, depending upon the application.

Fenwal Thermo Switch Model Numbers :

17000-0, 17021-0, 17002-0, 17023-0, 17100-0, 17121-0, 17102-0, 17123-0, 17200-0, 17221-0, 17202-0, 17223-0, 17300-0, 17321-0, 17302-0, 17323-0, 17800-0, 17821-0, 17802-0, 17823-0

18000-0, 18021-0, 18002-0, 18023-0, 18002-21, 18023-7

(Click on the part numbers above to BUY)

Series Features:
Fast Response - outer shell is the active sensing member
Precise Control - substantially reduces overshoot & undershoot
Extreme Sensitivity - slow make and break contacts, resolution 0.1F (0.05C)
Vibration Resistance - best possible control under difficult physical conditions
Cost-effective, Compact, Simple-In-Operation
Numerous Mounting Configurations

Overlapping ranges from -100F to 600F (-73 to 316C)
1200 Watt resistive load at 120/240 VAC
5/8" diameter THERMOSWITCH models available

Agency Approvals:
UL and CSA

Food service equipment
Packaging equipment
Laminating presses
Agricultural equipment


Fenwal series 30000 Surface Mount THERMOSWITCHES

Fenwal Thermo Switch Model Numbers: 30000-0, 30000-48, 30002-0

(Click on the part numbers above to BUY)

Based on the differential expansion of metals principle, an increase in temperature causes the stainless steel outer case of the Surface Mounting THERMOSWITCH controller to expand at a greater rate than the internal bridge assembly. Because the case is in direct contact with the heated surface, a temperature change is sensed almost instantaneously.

Series Features:
Fully adjustable
Narrow temperature differential
Compact size
Factory preset temperatures
NEMA 4 enclosure

Overlapping ranges from 50 to 600F (10 to 315C)
1200 Watt resistive load at 120/240 VAC
Minimum contact rating of 100,000 cycle

Cross mounting bracket
Slotted and extended adjusting screw lengths
Factory preset temperature
Special range calibration
Agency Approvals: UL

Plastic laminating presses
Food warming trays
Popcorn machines
Domestic appliances
Industrial steam cleaners

Click here to fill out a Fenwal parts form and quote request.

Send mail to with questions or comments about this web site.
Anderson-Bolds Product Line Card (pdf format).
OH Electro-Mechanical distributes a broad line of motors, drives, and power transmission products.
Copyright 1996-2018 Anderson-Bolds, Inc.  |  (216) 360-9800 or (866) 360-9810  |
Anderson-Bolds Business Partners