domestic and industrial automation

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Temperature regulator RT-833

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Temperature regulator RT-833

Reference: RT-833, EAN13: 5908312598596

Product description

Temeprature regulator with adjustable fan speed.
The regulator is designed for direct control of 12/24 V DC fan speed in the control panels (or similar installations) as a function of temperature.

Operation
Once the temperature rises above the set point Tmin, the fan starts, and its rotational speed will be proportional to the measured temperature and regulator settings:
- for temperature Tmin the rotational speed will be equal to the set minimum speed.
- for temperature Tmin + Δ the rotational speed is 100%.
- for temperature in range Tmin <> Tmin + Δ rotational speed is mapped proportionally in the range from the set minimum speed up to 100%.

The regulator has a relay output that signals too high temperature or damage (no power) to the regulator.
During normal operation, the contact 7-9 is closed. If the measured temperature is higher than the maximum value (Tmin+Δ) for a period of three minutes, the contact is switched off. If the regulator is damaged or the power is off, contacts 7-9 can be used for error signaling.

To avoid the problem with the motor stalling at low speeds, the regulator can start from the maximum speed - the fan starts from the maximum speed and then slows down to a suitable value.

Dedicated temperature probe [F&F]

designation	RT
temperature sensor	KTY 81-210
dimensions	Ø5; h=20mm
isolation of sensor	heat shrink
wire	OMY 2×0,34mm²; l=2,5m

designation	RT823
temperature sensor	KTY 81-210
dimensions	Ø8; h=40mm
isolation of sensor	steel sleeve
wire	heat-resist SIHF 2×0,5mm²; l=2,5m

Power supply voltage	12÷24 V DC
Accuracy of measurement	±1°C
Temperature probe	RT/RT2
DC load current (7-9)	6:00 AM
Contact (load)	separated 1 x NO/NC (10 A)
Temperature regulation range Tmin	25÷60°C
Temperature regulation range? T	5÷30°C
Setting the start speed	0÷80%
Terminal	pluggable terminal blocks 2,5 mm²
Tightening torque	0,4 Nm
Power consumption waking / working	0,05 W/0,6 W
Working temperature	-15 ÷ 50°C
Dimensions	1 module (18 mm)
Assembly	on rail 35 mm
Ingress Protection Marking	IP20