Heating / Cooling
Mechanical Thermostat FZK 011
- Adjustable temperature
- High switching capacity
- Small hysteresis
- Terminals easily accessible
- Clip fixing
- Change-over contact
The mechanical thermostat is used for controlling heating and cooling equipment, filter fans or signal devices. The thermostat registers the surrounding air and can switch both inductive and resistive loads via snap-action contact.
Functionality: The temperature setting on the scale equals to the upper switch point, which means that the Normally Closed contact opens. The temperature setting minus switch temperature difference (and tolerances) equals to the lower switch point, which means that the Normally Closed contact closes.
Technical Data
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| Switch temperature difference | 5K (-3/+2 K tolerance)* |
| Sensor element | thermostatic bimetal |
| Contact type | change-over snap-action contact |
| Service life | > 100 000 cycles |
| Min. switching current | 10 mA |
| Max. switching capacity, NC | 250VAC, 10 (4) A |
| DC 30W | |
| Max. switching capacity, NO | 250VAC, 5 (2) A |
| DC 30W | |
| Connection | 4-pole terminal, clamping torque 0.5Nm max.: rigid wire 2.5mm², stranded wire (with wire end ferrule) 1.5mm² |
| Mounting | clip for 35mm DIN rail, EN60715 |
| Casing | plastic according to UL94 V-0, light grey |
| Dimensions | 67 x 50 x 38mm |
| Weight | approx. 0.10kg |
| Fitting position | variable |
| Operating/Storage temperature | -20 to +65°C (-4 to +149°F) / -45 to +65°C (-49 to +149°F) |
| Protection type | IP20 |
| Approvals | - |
*Connecting terminal "N" (RF heating resistor) causes the thermal feedback to work and allows for a possible reduction of the switch temperature difference. Thermal feedback is subject to surrounding conditions and thus has to be determined for each individual application.
| Art. No. | Operating voltage | Setting range |
| 01170.0-00 | 230VAC | +5 to +60°C |
| 01170.0-01 | 230VAC | +40 to 140°F |
| 01170.0-02 | 230VAC | -20 to +35°C |
| 01170.9-00 | 120VAC | +40 to 140°F |
| 01170.9-01 | 120VAC | +5 to +60°C |
Technical drawing
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