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MEP POSTŘELMOV

RT3/2, RT3/2A heating unit

RT3/2 is used to heat passenger areas in trams. RT3/2A is used to heat passenger areas in trolley buses

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RT3/2 is used to heat passenger areas in trams. RT3/2A is used to heat passenger areas in trolley buses Both heaters are mounted under passengers’ seats

The heater consists of a heating element, two fans and electronic regulator with contactless temperature sensor and safety-fuse. The electronic regulator functions through output contact relay and external contactor for output air, where the temperature does not exceed 60°C. The regulator further ensures slowing down of the fan after the heater is switched off and decreases amount of air when the temperature drops below 40°C. The heater is controlled by a signal to the regulator. The regulator a zero input when the heater is not operating. In case of fan failure or regulator, the maximum cover temperature is limited to a maximum of 80 °C.

The heater cover is made from steel sheet protected against corrosion by means of powder painting. The color of the painting is applied in accordance with the requirements of the user.

The heater is connected to the external circuits with the help of self-tightening clamps, which are accessible after removing the side cover provided with safety screws. The cover is provided with two GP21 and GP16 bushings to connect power and controlling cables.

RT3/2

RT3/2 is designed to heat passenger areas in trams.

RT3/2A

RT3/2A is designed to heat passenger areas in trolley buses

Specifications

Rated heat output3 000 W
Temperature of output airabout 60 °C
Rated output voltageDC 600 V
Voltage range of outputDC 400 V – DC 870 V
Rated voltage of control circuitsDC 24 V
Voltage range of control circuitsDC 16,8 V – DC 30 V
Input of control circuits18 W
Dimensions400 × 300 × 150 mm
Weight15 kg
Degree of protectionIP20

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