Description
Tecasa B1 028A3K Capillary Thermostat (50–250°C) in Ceramic Housing for Electric Ovens
Original Tecasa capillary thermostat (models B1 028A3K / NT-252 AR/2 B1030B4K) in a heat-resistant ceramic housing is designed for precise adjustment and maintenance of the set temperature in electric ovens, stove units, and ranges. Equipped with a 1000 mm flexible capillary and an enlarged sensing bulb (length 160 mm, diameter 3 mm), it ensures high switching accuracy and an instantaneous response to temperature changes inside the oven chamber.
Key Advantages and Features:
- Heat-resistant ceramic housing: Reliably protects electrical contacts from overheating and deformation at high operating temperatures inside the stove.
- Long and sensitive sensor (16 cm / Ø 3 mm): The increased surface area of the sensor bulb ensures maximum accuracy in temperature readings without delays.
- European quality by Tecasa (Spain): Increased contact life (over 100,000 cycles), resistance to vibrations and loads.
- Universal range 50–250°C: Covers all standard baking, roasting, and drying modes in domestic ovens.
Compatibility and Application:
- Electric stove and oven brands: Fagor, GRETA (1470 series, etc.), Fiesta (VA5054W models and analogs), Piramida, Karpaty, Roxolana, Mechta, Nord, Elektra, Lysva, etc.
- Interchangeable markings and part numbers: Tecasa B1 028A3K, NT-252 AR/2 B1030B4K, NT-252AR, B1030B4K, 50-250C.
Technical Specifications:
| Parameter | Value / Characteristic |
|---|---|
| Brand / Manufacturer | Tecasa (Spain) |
| Part marking | B1 028A3K / NT-252 AR/2 B1030B4K |
| Part type | Capillary thermostat |
| Temperature adjustment range | 50°C – 250°C |
| Housing material | Heat-resistant ceramic / metal |
| Capillary tube length | 1000 mm (1 meter) |
| Sensing bulb (sensor) dimensions | Length 160 mm (16 cm) / Diameter 3.0 mm |
| Rated current / Voltage | 16A / 250V AC |
| Adjustment shaft length | ~ 18–22 mm (standard with a flat for the knob) |
Package Contents:
- Tecasa B1 028A3K capillary thermostat — 1 pc.
Pro tip: During installation, carefully route the capillary tube without sharp bends, kinks, or flattening. There is a special expanding gas inside the capillary — a kink in the tube will lead to depressurization and complete failure of the thermostat.



