Controller X33HHRR, 3x PTC/NTC + 4-20mA humidity input, 2 relay outputs, 100-240VAC

X33HHRR is an Ascon Tecnologic X33H controller for humidity and temperature in a 78 x 35 mm case with a dual red and amber display. It combines three temperature probe inputs with a separate 0/4...20 mA input for a humidity probe, so one instrument holds both variables and runs the defrost cycle.

• Inputs: 3x PTC KTY 81-121 (-50...+150 °C) or NTC 103AT-2 (-50...+109 °C), plus 1 humidity input 0/4...20 mA; two of the temperature inputs can be used as digital inputs
• Outputs: OUT1 relay SPST 16 A-AC1 (1 HP 250 Vac), OUT2 relay SPDT 8 A-AC1
• Control: ON/OFF, defrost by compressor stop, electric heating or hot gas / reverse cycle
• Auxiliary supply: 12 Vdc / 20 mA max. for the humidity probe
• Supply: 100...240 Vac +/-10%, 4 VA
• Case: 78 x 35 mm, flush mounting in a 71 x 29 mm cut-out, IP65 front with gasket, terminals 2.5 mm²

The 12 Vdc auxiliary output powers the humidity transmitter directly, so no separate supply is needed in the panel. This version has two relay outputs; OUT3, OUT4 and the internal buzzer are not fitted.

Conforms to directive 2004/108/CE (EN 55022 class B) and directive 2006/95/CE; operating temperature 0...+50 °C, humidity 30...95 RH% without condensation.