N321S-24V Differential Temperature Controller, 12 to 30 VDC Powered
Novus (80321S3014) differential temperature controller is designed for solar water heating applications. Two NTC-type temperature sensor inputs and one control output. 12 to 30 VDC Powered.
The N321S is a controller for solar heating applications. It typically commands a water circulation pump through the temperature differential between the solar collector and the thermal reservoir or pools.
The controller has two inputs for NTC-type temperature sensors (supplied with the controller) and one control outlet for activating the water circulation pump.
It also includes function for preventing damage to during deep winter and high summer, thereby preventing plumbing damages (burst pipes) and thermal discomfort.
CE (European Union) and UL (United States and Canada) certifications compliant.
Please note: To increase the sensors' life span, it is recommended that the sensors are either installed inside a thermowell that is carefully designed to avoid water logging due to condensation or have the sensors attached to the exterior of the tank
- Power Supply: 12 to 24 VDC
- Power consumption: 5 VA
- Input: Two -50 °C to 120 °C NTC sensors (supplied)
- Control output: One SPDT relay outlet, 1 HP(16 A resistive)/ 250 Vac
- Display: 3½ Digit LED Display
- Accuracy: 0.6 °C (NTC)
- Resolution: 0.1 °C from -19.9 to 119.9 °C
- Sampling time: 1.5 time per second
- Operating temperature: 0 to 40 °C
- Storage temperature: -20 to 60 °C
- Protection:
- Front Panel: IP65 rated
- Box: IP42 rated with polycarbonate material, UL94-2
- Weight: 120 g
- Panel cutout: 70 x 29 mm
- Dimension: 75 x 33 x 75 mm
Dispatch
In-stock orders are dispatched within 2 business days.
Shipping options
We deliver across Australia and internationally by any of the following methods:
- Australia Post Express
- Australia Post Parcel Post
- DHL
- FedEx (only international)
- Freight account. We'll email packaging dimensions when the shipment is ready to be book.
*Transit times vary depending on the shipping method and destination.
Store Pickup - Carrum Downs, Victoria, 3201
Order before 11am to collect after 2pm the same day. Mon–Fri, 9am–5pm, excludes public holidays.
RETURNS
How to return an item Contact us before sending anything back. Email info@oceancontrols.com.au or call +61 3 9708 2390. We'll confirm eligibility and guide you to the return process.
Return window 14 days from dispatch date.
Condition required Items must be unused and in original packaging, including all documentation and manuals.
Restocking fee A 20% restocking fee applies to all accepted returns. Return shipping costs are the customer's responsibility.
Non-returnable items
- Custom-made or specially imported products
- Software licences (some software have trial versions available)
- Items not in original, as-new condition
WARRANTY
How to make a warranty claim Before returning anything, please contact us. Our engineers can often resolve the issue remotely. If a return is required, our team will provide you with a warranty form to include with the goods.
What's covered Defects in materials and workmanship under normal use and correct installation.
What's not covered The warranty does not cover damage or failures caused by factors outside our control, including incorrect installation, unauthorised alterations or modifications, or any installation or use not recommended by the manufacturer.
Standard warranty All products carry a 12-month warranty from the date of purchase unless stated otherwise.
Extended warranty
- Labjack: 5 Years
- Atop: 5 Years
- MeanWell: 3 Years
- Teracom: 3 Years
- Novus: 3 Years












