Adjustable thumbwheel setting
Compact design
Small hysteresis
High switching capacity
DIN rail mountable
The ST 011 thermostat is an SPST regulator with a small hysteresis. The housing design ensures optimized air circulation around the sensor element.
STO 011: NC / opens on temperature rise (red thumbwheel) - for regulating heaters or for switching signal devices when temperature has fallen below the minimum value.
STS 011: NO / 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. |
| Connection | 2-pole terminal for AWG 14 max. (2.5 mm²), torque 1 Nm max. |
| Housing | plastic, UL 94V-0, light grey |
| Mounting | clip for 35 mm DIN rail, EN 60715 |
| Mounting position | vertical |
| Operating / Storage temperature | -49 to +176 °F (-45 to +80 °C) |
| Max. storage humidity | 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) |
| Protection type | IP20 |
| 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 |
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