Calpeda MXH EI Multi-Stage Horizontal Pump With I-MAT 240V
Calpeda MXH EI 404/B Multi-Stage Horizontal Pump With I-MAT 240V 62251041000
- Established 1975
- Trusted by thousands of customers
Calpeda MXH EI 404/B is a Calpeda horizontal multi-stage pump with I-MAT inverter, part number 62251041000. It delivers up to 133 l/min (8 m³/h) and a maximum head of 44.5 m (4.4 bar), driven by a 0.75 kW motor with on-board I-MAT inverter.
The Calpeda MXH EI is the MXH horizontal multi-stage stainless steel pump fitted with Calpeda's on-board I-MAT frequency converter and transducers, pre-programmed at the factory. It gives a compact variable-speed system for water supply and hot and cold water distribution.
More about this product
Calpeda MXH EI 404/B overview
Calpeda MXH EI 404/B is a Calpeda horizontal multi-stage pump with I-MAT inverter, part number 62251041000. It delivers up to 133 l/min (8 m³/h) and a maximum head of 44.5 m (4.4 bar), driven by a 0.75 kW motor with on-board I-MAT inverter.
The Calpeda MXH EI is the MXH horizontal multi-stage stainless steel pump fitted with Calpeda's on-board I-MAT frequency converter and transducers, pre-programmed at the factory. It gives a compact variable-speed system for water supply and hot and cold water distribution.
Specifications
| Model | Calpeda MXH EI 404/B |
|---|---|
| Calpeda part number | 62251041000 |
| Motor power (P2) | 0.75 kW (1 HP) |
| Supply | Via on-board I-MAT inverter; motor three-phase |
| Max. flow | 133 l/min (8 m³/h) at 12.5 m |
| Max. head | 44.5 m (4.4 bar) |
| Connections | G 1¼ suction × G 1 delivery |
| Liquid temperature | -15 °C to +110 °C |
| Ambient temperature | up to 40 °C |
| Max. pressure in the pump casing | 10 bar (8 bar for MXH 16) |
| Duty | Continuous |
| Variable speed | On-board I-MAT frequency converter, 1750–2900 rpm |
| Hydraulics | Calpeda MXH 404/C (full-speed curve) |
| Weight | 19.7 kg |
Performance
Full-speed (approx. 2900 rpm) total head at each flow for the MXH 404/C hydraulics, from the Calpeda MXH 50 Hz data sheet.
| Flow (l/min) | Flow (m³/h) | Head (m) | Pressure (bar) |
|---|---|---|---|
| 0 (shut-off) | 0 | 44.5 | 4.4 |
| 37.5 | 2.25 | 40.5 | 4 |
| 50 | 3 | 38 | 3.7 |
| 58.3 | 3.5 | 36.5 | 3.6 |
| 66.6 | 4 | 35 | 3.4 |
| 75 | 4.5 | 33 | 3.2 |
| 83.3 | 5 | 31 | 3 |
| 100 | 6 | 26 | 2.5 |
| 117 | 7 | 20 | 2 |
| 133 | 8 | 12.5 | 1.2 |
Construction and features
- MXH one-piece horizontal multi-stage pump in AISI 304
- I-MAT frequency converter mounted on the motor, with connection cable and transducers
- Pre-programmed at the factory
- Control range from 1750 to 2900 rpm
- Operating modes: constant pressure, proportional pressure, constant flow, fixed speed, constant temperature
- Protections: dry running, closed valve operation, system leakage, motor overcurrent, supply over/undervoltage, phase current unbalance
Materials
| Component | Material |
|---|---|
| Pump casing, stage casings, impellers | Chrome-nickel steel 1.4301 EN 10088 (AISI 304) |
| Wear ring | PPS |
| Pump shaft | Steel 1.4305 EN 10088 (AISI 303) |
| Mechanical seal | Ceramic alumina / carbon / EPDM, seat to ISO 3069 |
Applications
- Water supply and pressure boosting
- Clean liquids without abrasives that are not aggressive to stainless steel
- Domestic, civil and industrial use
- Garden use and irrigation
Frequently asked questions
Technical data: Calpeda MXH data sheet, 50 Hz. Performance tolerances to UNI EN ISO 9906:2012.
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.
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Frequently Asked Questions
Quick answers to common questions about the Calpeda MXH EI 404/B Multi-Stage Horizontal Pump With I-MAT 240V 62251041000. 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 is a water booster pump?
A water booster pump increases the pressure of an existing water supply to give stronger flow at taps, showers and appliances. It can be a small inline pump fitted to the incoming mains, or a larger pump and tank set that draws from a break tank to feed the whole house. Boosters do not create water – they raise the pressure of the water already coming in.
What is the difference between an inline booster and a tank-and-pump booster?
An inline booster connects straight onto the incoming mains and is limited to 12 litres per minute under UK water regulations – examples include the Salamander HomeBoost and WaterBoost WB-Compact. A tank-and-pump booster, such as the Grundfos Home Booster or DAB Esybox with Esytank, draws from a break tank and can deliver much higher flow rates for larger homes with multiple bathrooms.
What is a variable speed booster pump?
A variable speed booster uses an inverter to adjust pump speed in real time to match demand. It maintains constant pressure as outlets open and close, runs more quietly than a fixed-speed pump and typically saves up to 50 per cent of the energy a fixed-speed equivalent would use. The DAB Esybox, DAB Esybox Mini 3 and Grundfos Scala2 are common variable speed examples.
What does a water booster pump do?
A water booster pump raises water pressure to help supply taps, showers and other outlets when the existing system cannot meet demand.
Can a booster pump connect directly to the water mains?
Not every booster can. Direct connection depends on the product design and applicable water regulations; some systems require a break tank.
How do I size a water booster pump?
Assess simultaneous flow demand, required outlet pressure, available inlet conditions and the pressure losses in the pipework.
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.