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XR40CXB is a microprocessor-based controller, suitable for applications on medium or low-temperature refrigerating units. It has 2 relay outputs to control the compressor and defrost, which can be either an electrical or reverse cycle (hot gas). It is also provided with three NTC or PTC probe inputs, the first one for temperature control, the second one, to be located onto the evaporator, to control the defrost termination temperature, the third one, optional, to connect to the HOT KEY terminals to signal the condenser temperature alarm or to display a temperature. The digital input can operate as the fourth temperature probe.
Resolution | 0,1 °C or 1°C or 1 °F |
Accuracy (ambient temp. 25°C) | ±0,7 °C ±1 digit |
Relative Humidity | 20÷85% (no condensing) |
Operating Temperature | 0÷60 °C |
Storage Temperature | -30÷85 °C |
Rated Impulsive Voltage | 2500V |
Digital Input | Free Voltage Contact |
Relay Outputs (Compressor) | 20(8)A 250Vac |
Defrost | SPDT 8(3) A, 250Vac |
Measuring and regulation range | NTC probe: -40÷110°C (-40÷230°F) PTC probe: -50÷150°C (-58÷302°F) |
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