Product details
Alre-it Frost Protection Thermostat RTKSA-204.100
Manufacturer: Alre-it
Designation: Frost Protection Thermostat STW, 3m, IP40
Type: RTKSA-204.100
Measuring Range: -10..15 °C
Adjustable Switching Differential: no
Differential Range/Switching Hysteresis: 1.5 K
Capillary Length: 3 m
Max. Medium Temperature (Continuous Operation): 120 °C
Max. Voltage of Contacts: 230 V
Max. Contact Load: 16 A
Contact Locking: no
Protection Class (IP): IP40
Explosion-Proof: no
Height: 146.8 mm
Width: 57.5 mm
Depth: 53 mm
Alre-it Frost Protection Thermostat RTKSA-204.100: Additional Details
The RTKSA frost protection controllers are specifically designed for air or water-side frost protection of hot water heating registers and heat exchangers in ventilation, heating, or air conditioning systems. The capillary is active along its entire length. The device activates when the minimum activation length of the capillary (15 cm) reaches the set scale value. In the event of a sensor break, contacts 1-2 remain permanently open, and contacts 1-4 remain permanently closed. Unlocking is no longer possible. Note: Mounting brackets, immersion sleeves, and protective coils are not included and must be ordered separately.
Air-side Application: For frost protection of heating registers, the capillary is secured in front of the heating register to be protected using mounting brackets. For this purpose, the mounting brackets JZ-05/6 M (metal) or JZ-05/6 K (plastic) should be used.
EAN: 4050528074898.
Thermostat type | Radiator thermostats |
Suitable for | Radiator |
Smart home | Not compatible |
Power supply | Electrical connection |
Items per sales unit | 1 pcs. |
Item number | 31400504 |
Manufacturer | ALRE |
Category | Thermostats |
Manufacturer no. | KA020402 |
Release date | 27.9.2022 |
Thermostat type | Radiator thermostats |
Suitable for | Radiator |
temperature control | Manual |
Thermostat functions | Frost protection setting |
Smart home | Not compatible |
Country of origin | Germany |
Protection type (IP code) | IP40 |
Power supply | Electrical connection |
Items per sales unit | 1 pcs. |
Scope of delivery | Mounting brackets, Thermowells and protective coils are not included in the scope of delivery and must be ordered separately. |
Length | 5.30 cm |
Width | 5.75 cm |
Height | 14.68 cm |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Thermostats» category have a defect within the first 24 months?
Source: Digitec Galaxus- ALRENot enough data
- 1.Honeywell0 %
- 1.Oventrop0 %
- 1.TP-Link0 %
- 4.Eberle Controls0.2 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- ALRENot enough data
- 1.Aqara0 days
- 1.Eberle Controls0 days
- 1.Ecoheat0 days
- 1.EQ-30 days
Return rate
How often is a product of this brand in the «Thermostats» category returned?
Source: Digitec Galaxus- ALRENot enough data
- 1.EQ-30.2 %
- 2.Ecoheat1.5 %
- 3.Bosch Smart Home2.2 %
- 3.Inkbird2.2 %