Calpeda NCS3 Series Circulator Pumps
CALPEDA NCS3 20-40/130 ENERGY EFFICIENT CIRCULATOR PUMP 240V
- Established 1975
- Trusted by thousands of customers
Calpeda NCS3 20-40/130 is a Calpeda 3-speed circulator with a bronze pump casing for domestic hot water circulation. It is the 4 m head size, with G 1¼ in-line ports and a maximum power input of 70 W.
Suction and delivery ports are the same size and on the same axis (in-line), and the motor can is AISI 316 stainless steel. The speed is set on the pump.
More about this product
Calpeda NCS3 20-40/130 overview
Calpeda NCS3 20-40/130 is a Calpeda 3-speed circulator with a bronze pump casing for domestic hot water circulation. It is the 4 m head size, with G 1¼ in-line ports and a maximum power input of 70 W.
Suction and delivery ports are the same size and on the same axis (in-line), and the motor can is AISI 316 stainless steel. The speed is set on the pump.
Specifications
| Model | Calpeda NCS3 20-40/130 |
|---|---|
| Motor | 2-pole induction motor, single-phase 230 V, 50 Hz, three speeds |
| Power input (P1) | speed 3: 70 W, speed 2: 59 W, speed 1: 41 W |
| Current at 230 V | speed 3: 0.3 A, speed 2: 0.26 A, speed 1: 0.18 A |
| Ports | G 1¼ (ISO 228), in-line, 130 mm port-to-port |
| Liquid temperature | +5 °C to +65 °C |
| Ambient temperature | up to 40 °C |
| Max. working pressure | 10 bar |
| Min. suction pressure | 0.05 bar at 50 °C |
| Sound pressure | ≤ 43 dB(A) |
| Protection | IP44, insulation class H |
Speeds and power
| Speed | Power input (W) | Current at 230 V (A) |
|---|---|---|
| 3 | 70 | 0.3 |
| 2 | 59 | 0.26 |
| 1 | 41 | 0.18 |
Materials
| Component | Material |
|---|---|
| Pump casing | Bronze |
| Can | Stainless steel AISI 316 |
| Impeller | Composite |
| Shaft | Stainless steel |
| Bearings | Graphite |
Applications
- Domestic hot water circulation systems
Frequently asked questions
Technical data: Calpeda NCS3 data sheet (earlier edition). Head class from the model designation (head in dm).

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Data Sheet PDFDownload
Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.
Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).
Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.
Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.
Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.
Frequently Asked Questions
Quick answers to common questions about the CALPEDA NCS3 20-40/130 ENERGY EFFICIENT CIRCULATOR PUMP 240V. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.
What types of Calpeda pumps can I explore?
Calpeda produces pumps for water supply, pressure boosting, drainage and circulation. Choose a model according to the required flow, head and liquid.
Are Calpeda pumps suitable for commercial installations?
Yes. Calpeda offers pump ranges for domestic, commercial and industrial duties; suitability depends on the individual model and duty point.
How do I choose a replacement Calpeda pump?
Check the existing pump model, supply voltage, connection dimensions, flow rate and required head before selecting a replacement.
