The STEGO FTO 011 Mechanical Thermostat (Part No. 11100.0-00) is a compact, high-performance temperature regulator designed specifically to control enclosure heaters or low-temperature alarm indicators inside electrical panels, automation cabinets, and outdoor telecom enclosures.

Identified by its red setting dial, the Stego 11100.0-00 features a Normally Closed (NC / Break contact) mechanism. When the enclosure temperature drops below the configured set point (adjustable from 0°C to +60°C), the contact closes to energize the connected heating element, raising internal temperatures to suppress relative humidity and stop condensation. Once the temperature reaches the set threshold, the contact opens to power down the heater. Operating via a precise thermostatic bimetal sensor, it requires no external power source. Housed in flame-retardant plastic (UL94 V-0) with an integrated clip for 35mm DIN rail mounting, it offers exceptional reliability over 100,000 switching cycles.

• Manufacturer: STEGO (Germany)
• Product Series: FTO 011 Series (Thermostat NC - Red Dial)
• Part Number: 11100.0-00
• Temperature Setting Range: 0°C to +60°C
• Contact Type: Normally Closed contact (NC / Break contact)
• Switching Difference (Hysteresis): 7 K (± 4 K tolerance)
• Sensor Element: Thermostatic bimetal
• Service Life: > 100,000 cycles
• Maximum Switching Capacity:
  - 250 VAC: 10 A (Resistive load) / 2 A (Inductive load cos φ = 0.6)
  - 120 VAC: 15 A (Resistive load) / 2 A (Inductive load cos φ = 0.6)
  - DC: 30 W @ 24 VDC to 72 VDC
• Max. Inrush Current: AC 16 A for 10 seconds
• Electrical Connection: 2-pole terminal, clamping torque 0.5Nm max., lead wire 2.5 mm² max.
• Mounting: Clip for 35mm DIN rail (EN 60715)
• Casing Material: Plastic according to UL94 V-0, light grey
• Protection Degree: IP20
• Dimensions: 60 x 33 x 43 mm
• Weight: Approx. 40 g
• Operating / Storage Temperature: -45°C to +80°C (-49°F to +176°F)
• Approvals & Certifications: VDE, UL Recognized, CSA, EAC, CE, RoHS compliant