- Adjustable thumbwheel setting
- Compact design
- Small hysteresis
- High switching capacity
- DIN rail mountable
The ST 011 thermostat is an SPST regulator with small hysteresis. The housing design ensures optimized air circulation around the sensor element.
Thermostat NC (normally closed): Thermostat opens on temperature rise (red thumbwheel) - for regulating heaters or for switching signal devices when temperature has fallen below the minimum value.
Thermostat NO (normally open): Thermostat closes on temperature rise (blue thumbwheel) - for regulating filter fans, heat exchangers, cooling devices or for switching signal devices when temperature limit has been exceeded.
|Switching difference||7 °F (4 K) ± 5.4 °F (3 K) tolerance|
|Sensor element||thermostatic bimetal|
|Contact type||snap-action contact|
|Service life||> 100,000 cycles|
|Max. switching capacity||15 A resistive / 2 A inductive @ AC 120 V|
10 A resistive / 2 A inductive @ AC 250 V
DC 30 W (DC 24-72 V)
|Max. inrush current||AC 16 A for 10 sec.|
|Connection¹||2-pole terminal, clamping torque 1 Nm max.:|
solid/stranded1 wire - AWG 14 max. (2.5 mm²)
|Housing||plastic, UL 94V-0, light grey|
|Mounting||clip for 35 mm DIN rail, EN 60715|
|Operating / Storage temperature||-49 to +176 °F (-45 to +80 °C)|
|Operating / Storage humidity||max. 90 %RH (non-condensing)|
|Dimensions||2.76 x 1.3 x 1.65” (70 x 33 x 42 mm)|
|Weight||approx. 1.8 oz. (50 g)|
|Approvals||UL File No. E164102, VDE, EAC|
¹ When connecting with stranded 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.
Convenient minimum setpoint symbol on the NC thermostat to assure enclosure temperature remains above freezing.
|Part No. (NC)||Part No. (NO)||Setting range|
|01115.9-00||01116.9-00||+32 to +140 °F|
|01115.0-00||01116.0-00||0 to +60 °C|