Novus Electronic Thermostats represent a versatile and high-performance range of digital control solutions designed for industrial, commercial, and laboratory environments. Engineered for simplicity and reliability, the lineup is anchored by the N321, N322, and N323 series, which offer single, dual, and triple relay outputs respectively. These controllers cater to a vast array of thermal management needs, from basic on/off heating and cooling to specialised applications such as solar water heating, humidity control, and precise refrigeration management with integrated defrost cycles. The standard N320 is a simple temperature display for those not requiring any outputs beyond the reading.
The Novus N320 is a compact, reliable digital temperature indicator designed for applications where precise monitoring is required without the need for control outputs. This specific model operates on a 24vDC power supply, making it an ideal fit for industrial panels, mobile equipment, or automation systems where low-voltage DC power is standard. It features a high-visibility LED display that ensures clear readability even in low-light environments, and it supports NTC 10K Thermistor sensors.
The Novus N321 Electronic Thermostat is designed for cooling and heating control using a single control SPDT Relay (Max 250vAC @ 16A) to activate or deactivate a compressor or electronic heater with simple ON/OFF control. The N321 can accept PT100 (2- or 3-Wire), NTC Thermistor or Thermocouple (Type J, K or T). Mains or 24vDC Power Supply Options,
The N322 Electronic Thermostat is designed for cooling and heating control using a single control SPDT Relay (Max 250vAC @ 16A) to activate or deactivate a compressor or electronic heater with simple ON/OFF control and a second SPST-NO Relay (Max 250vAC @ 3A) suitable for control or alarm. The N322 can accept PT100 (2- or 3-Wire), NTC Thermistor or Thermocouple (Type J, K or T). Mains or 24vDC Power Supply Options and RS485 Modbus communications.
The N323 Electronic Thermostat is designed for general cooling and heating control using a single control SPDT Relay (Max 250vAC @ 16A) to activate or deactivate a compressor or electronic heater with simple ON/OFF control and two SPST-NO Relays (Max 250vAC @ 3A) suitable for additional control or alarms. The N323 can accept PT100 (2- or 3-Wire), NTC Thermistor or Thermocouple (Type J, K or T). Mains or 24vDC Power Supply Options and RS485 Modbus communications.
The N322T Electronic Thermostat is designed for cooling and heating processes with cyclic operation requirements, eg. defrosting or liquid circulating. The N322T has a programmable delay on powerup to prevent simultaneous loads. The N322T has the same single control SPDT Relay (Max 250vAC @ 16A) and secondary SPST-NO Relay (Max 250vAC @ 3A) for control of alarming. The options are more limited than the N322 electronic thermostat.
The N321S Electronic Thermostat is designed for solar water heating control. The display has the same options as the N321 but includes a differential controller that compares two different sensors, ensure water is only cycled from the solar collector to the storage tank when it is significantly higher than the storage tank. The main relay can be set to control the water circulation from the roof to storage tank when it is beneficial to heat the stored water.
The N322S Electronic Thermostat is designed solar water heating control. The main relay used to control the water circulation from the roof to storage tank. The display has the same options as the N322 but includes a differential controller that compares two different sensors, ensure water is only cycled from the solar collector to the storage tank when it is significantly higher than the storage tank, or activating back-up heating to maintain the hot water supply.
The N321R Electronic Thermostats are designed for refrigeration application with a programmable defrost cycle that can turn off a compressor at pre-determined time intervals for a specific duration. Manual Defrost key is also available on the front panel. The N321R accepts NTC Thermistor temperature sensors. A single SPDT Relay (Max 250 @ 16A) allows for power a connected compressor with ON/OFF control.
The N323R Electronic Thermostats are designed for refrigeration application with 3 relays. Allowing independent control for the defrost cycle, compressor activation and evaporator programmable defrost cycle that can turn off a compressor at pre-determined time intervals for a specific duration. Manual Defrost key is also available on the front panel. The N323R accepts NTC Thermistor temperature sensors. A single SPDT Relay (Max 250 @ 16A) allows for power a connected compressor with ON/OFF control. The two SPST relays can be used to manage the ice-build, fan control, or simple alarm functions.
The N323TR Electronic Thermostats are designed for refrigeration application with 3 relays and an internal clock. Allowing independent control for the defrost cycle, compressor activation and evaporator, plus programmable defrost cycle that can turn off a compressor at specific times of day. Allowing the higher demand periods to be managed differently from the lower demand periods. This ensure that temperatures are kept without the correct ranges for the products and any ice build ups are cleared when it is safer to do so. It can also help maintain the chillers and lower the overall cost of running the equipment.
N321R Electronic Thermostat with Defrost Cycle, 3 digit LED Display and one control Relay SPDT (1 HP 250vAC / 1/3 HP 125vAC). Suitable for PT100, PT1000, NTC and Thermocouple temperature inputs. Front-panel with IP65 protecton. Dimensions: 75 x 33 x 75 mm.
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