¹ When connecting with wires, wire end ferrules must be used.
Important note: The contact system of the regulator is subjected to environmental influences, thus the contact resistance may change. This can lead to a voltage drop and/or self-heating of the contacts.
Fast Fixing Type (F Type)
Manual Up down Type (M Type)
Setting range
NTL 37-F (NC Type)
NTL 38-F (NO Type)
NTL 37-M (NC Type)
NTL 38-M (NO Type)
37NCF01
38NOF01
37NCM01
38NOM01
0 to +60°C
37NCF02
38NOF02
37NCM02
38NOM02
-10 to +50°C
37NCF03
38NOF03
37NCM03
38NOM03
+20 to +80°C
37NCF04
38NOF04
37NCM04
38NOM04
+32 to +140°F
37NCF05
38NOF05
37NCM05
38NOM05
+14 to +122°F
• Large setting range
• Small size
• Simple to mount
• High switching performance
NT 37-F / NT 37-M: Thermostat (normally closed); contact breaker for regulating heaters. The contact opens when temperature is rising.
NT 38-F / NT 38-M: Thermostat (normally open); contact maker for regulating of filter fans and heat exchangers or for switching signal devises when temperature limit has been exceeded. The contact closes when temperature is rising.