Description
RTKSA-203.220
Frost thermostat, 6 m, IP65, hysteresis +3K, STB, internal adjustment, external reset | RTKSA-203.220
The RTKSA frost thermostats are specially designed for air-side or water-side frost protection of boiler coils and heat exchangers in ventilation, heating, or air conditioning systems. The capillaries are active over their entire length. The device responds when the minimum response length of the capillary (30 cm) reaches the set scale value. In the event of a Sensor break, contact 1 – 2 is permanently open and contact 1 – 4 is permanently closed. Resetting is no longer possible.
Note
Mounting brackets, immersion sleeves, and protective coils are not included in the scope of delivery and must be ordered separately. Air-side application: For frost protection of heating coils, the capillary is clamped in front of the heating coil to be protected using mounting clamps. For this purpose, the mounting clamps JZ-05 / 6 M (metal) or JZ-05 / 6 K (plastic) must be used.
Available in 2 variants
– Safety temperature limiter (internal setting with reset)
– Safety temperature monitor (internal setting)
Precise measurement of room temperature
Various Sensor lengths available (800 mm – 12000 mm)
Degree of protection: IP 40 and IP 65
Technical data RTKSA-203.220
Operating voltage: none
Electrical connection: plug-in terminal
Colour: anthracite grey (RAL7016), front transparent
Internal adjustment: yes
Capillary length: 6 m
Sensor material: Cu
Max. probe temperature: 120°C
Switching voltage: 24 VAC / 50 Hz, 24 VDC…230 VAC 50 / 60 Hz, 230 VDC
Switching current: normally closed 16 (2.5) A; normally open 2 (0.4) A, 0.25 Adc
Mounting / fastening: wall mounting
Control range: -10°C…15°C
Switching differential: manual reset after +3 K
Switch contact: changeover contact
Potential-free switch contact: yes
Degree of protection: IP65
Protection class: I
Ambient temperature: Max. 80°C
Do you have any questions about this RTKSA-203.220? Then please contact us! You can do so by phone or email, or even use the chat function.