Description

The Novus N321S is a dedicated differential temperature controller optimized for solar water heating and fluid circulation systems. Engineered for simplicity and reliability, the N321S utilizes dual NTC sensor inputs to monitor the temperature gradient between a solar collector and a storage tank or swimming pool. The unit features a robust 16A single relay output, capable of directly switching circulation pumps up to 1 HP without the need for an external contactor. To ensure long-term system integrity, the N321S includes built-in software logic for anti-freeze protection and over-temperature safety, making it an essential component for residential solar thermal installations, industrial heat recovery, and agricultural air destratification.

Specifications

• IP65 enclosure frontal protection when installed. Behind panel, IP42.
• Outputs: 1 x SPDT Relay for 250vAC @ 16A
• Working temperature: 0 to 40°C @ 20 to 85%RH.
• Power supply: 100-240vAC or 24vDC
• Dimensions: 75 x 33 x 75mm (Width x Height x Depth)
• Panel Cut Out: 70 x 29mm
• Weight: 100g