The N321R is a temperature controller dedicated to applications in refrigeration. The defrost cycle is accomplished by turning off the compressor at time intervals chosen by the user. Pt100 and thermistor sensors inputs available. Adjust for ON and OFF durations. Auto defrost at programmable intervals. Manual Defrost key in the front panel.

Features of N321R Temperature Controller with Defrost (Compressor Turned Off):

• Sensor input: Pt100 (-50 to 300ºC) or thermistor (-30 to +105°C)
• IP65 enclosure frontal protection
• Display indication does not change during defrost cycles
• Minimum ON and OFF duration accessed by the user
• Relay SPDT: 1 HP 250 Vac / 1/3 HP 125 Vac (16 A Resistive) (up to 1HP compressors)
• Resolution: 0,1°C from -19,9 to 199,9°C
• Accuracy: ± 0,5°C/°F ±1 digit
• Adjustable hysteresis
• Sampling: 1,5 per second
• Working temperature: 0 to 50°C
• Power supply: 85-250Vac (internal) or 12~30 Vdc
• Digital communication via RS485 with Modbus RTU protocol (optional)
• Dimensions: 75x33x75mm

Download Brochure

Download Operating Manual

Download Registers Table for Serial Communication

Download Selection Guide

Download 2D Housing Guide (DXF Format)

If you have any questions regarding N321R Temperature Controller with Defrost (Compressor Turned Off) by Novus, please contact us.