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DESCRIPTION
Types R 20/R 22/R 40 are bimetal detectors and temperature regu-
lators.
Types R 30/R 32 are temperature limiters (manual reset) without
tripfree mechanism.
The thermal response works via a bimetal snap element electrically
connected to the switch contact.
The switch system is current insensitive.
The thermal switches react only to external thermal effects. Double
contacts ensure high switch performance and long service life.
The housing, base, and the mounting brackets are voltage-free
(Standard version: base and mounting brackets are aluminium-plated
steel).
Heat transfer occurs directly through the metallic base via convection,
radiation and conduction in gaseous and solid media.
DIMENSIONS
R 20 / R 22 / R 40
R 30 / R 32
Bimetal Cutouts
Temperature Regulators
Temperature Limiters
ADVANTAGES
R 20
– high pressure resistance
R 22
– high response sensitivity
R 30
– numerous applications
R 32
– various housings, connections and mounting styles
R 40
mounting flange
rotating 360 degress
mounting flange
rotating 360 degress
Standard version
Standard version
C A NTHE RM
8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada
Tel: (514) 739-3274 • 1-800-561-7207 • Fax: (514) 739-290
E-mail : sales@cantherm.com • Website: www.cantherm.com
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