> Small size
> Default temperature settings
> Easy to install
> High switching accuracy
Tamper-proof (Pre-set) Thermostat FTO 011: Contact breaker/NC (red casing) for regulating heaters or for switching signal devices when temperature has fallen below the minimum value. The contact opens when temperature is rising.
Tamper-proof (Pre-set) Thermostat FTS 011: Contact maker/NO (blue casing) for regulating filter fans, heat exchangers, cooling devices or for switching signal devices when temperature limit has been exceeded. The contact closes when temperaure is rising.
Technical Data
FTO 011 / FTS 011 | |
Sensor element | thermostatic bimeta |
Contact type | snap-action contact |
Service life | > 100,000 cycles |
Max. switching capacity | 250VAC, 5 (1.6) A / 120VAC, 10 (2) A DC 30W |
Max. inrush current | AC 16A for 10 sec. |
Connection | 2-pole terminal, clamping torque 0.8Nm max.: rigid/stranded¹ wire 2.5mm² (AWG 14) |
Mounting | clip for 35mm DIN rail, EN 60715 |
Casing | plastic according to UL94 V-0, light grey |
Dimensions | 47 x 33 x 33mm |
Weight | approx. 30g |
Fitting position | variable |
Operating/Storage temperature | -40 to +80°C (-40 to +176°F) / -45 to +80°C (-49 to +176°F) |
Operating/Storage humidity | max. 90% RH (non-condensing) |
Protection type | IP20 |
¹ When connecting with stranded wires, wire end ferrules must be used.
Examples of connection

Art. No. | Contact | Switch-off temperature | Switch-on temperature |
01160.0-00 | Contact breaker (NC) | +15°C / +59°F | +5°C / +41°F |
01160.0-01 | Contact breaker (NC) | +25°C / +77°F | +15°C / +59°F |
01160.0-05 | Contact breaker (NC) | +10°C / +50°F | 0°C / +32°F |
Art. No. | Contact | Switch-on temperature | Switch-off temperature |
01161.0-00 | Contact breaker (NO) | +50°C / +122°F | +40°C / +104°F |
01161.0-01 | Contact breaker (NO) | +60°C / +140°F | +50°C / +122°F |
01161.0-02 | Contact breaker (NO) | +35°C / +95°F | +25°C / +77°F |