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The N321R is a refrigeration controller that defrosts by stopping the compressor. The sensor input can be for thermistors. Programmable minimum on and off times. Automatic defrost with programmable interval and duration, plus a manual defrost key. Holds the display during the defrost cycle. Programmable delay on actuation after power-up.
– Sensors: Pt100 (-50 to 30 °C) or thermistor (-30 to +105 °C)
– Display reading does not change during defrost cycles
– Minimum ON and OFF duration set by the user
– Front protection: IP65
– Output: SPDT relay: 1 HP 250 Vac / 1/3 HP 125 Vac (16 A resistive)
– Resolution: 0.1 °C between -19.9 and 199.9 °C
– Accuracy: ± 0.5 °C / °F ±1 digit
– Adjustable hysteresis
– Adjustable offset
– Sampling: 1.5 times per second
– Operating temperature: 0 to 50 °C
– Power supply: 100-240 Vac/dc (internal) or 12~30 Vdc
– RS485 communication with Modbus RTU protocol (optional)
– Dimensions: 75 x 33 x 75 mm
| Type | Refrigeration controller |
|---|
Temperature controllers
Temperature controllers
Temperature controllers
Temperature controllers