Compact Thumbwheel Thermostat STO 011 / STS 011
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 the 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.
- Adjustable thumbwheel setting
- Compact design
- Small hysteresis
- High switching capacity
- DIN rail mountable
- Adjustable thumbwheel setting
- Compact design
- Small hysteresis
- High switching capacity
- DIN rail mountable
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Switching difference
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: 7 °F (4 K) ± 5.4 °F (3 K) tolerance
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Sensor element
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: Thermostatic bimetal
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Contact type
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: Snap-action contact
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Dimensions
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: 2.76 x 1.3 x 1.65” (70 x 33 x 42 mm)
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Connection
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: 2-pole terminal, clamping torque 1 Nm max.: solid/stranded1 wire - AWG 14 max. (2.5 mm²)
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Housing
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: Plastic, UL 94V-0, light grey
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Storage temperature
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: -49 to +176 °F (-45 to +80 °C)
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Protection class
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: IP20
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Approvals
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: UL File No. E164102, VDE, GOST-R
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