2026 catalog · DC SERIES
MT24-25Intelligent DC Booster Pump
The MT24-25 is the lightest pump Calliope makes: a 1 kg DC 24 V booster delivering 25 L/min at up to 25 m of head through 15 mm ports. It runs on 24 V DC from a battery or solar supply, and the supplied adapter accepts AC 110 V / 220 V input where mains is available. Its reinforced-nylon body and IP65 protection suit mobile and outdoor duty, and the 200 W motor is the off-grid answer for RVs, solar-water systems and water heaters. DC models carry a 1-year warranty.
- Rated power
- 0.2 kW (0.27 HP)
- Maximum flow
- 1.5 m³/h (6.6 GPM)
- Maximum head
- 25 m (82 ft)
- Power supply
- DC 24 V
- Catalog page
- Page 18
Key benefits
MT24-25 Intelligent DC Booster Pump · data from the 2026 catalog and the model page.
- 1 kg — the lightest pump in the range, for mobile and wall-mounted installs.
- DC 24 V with an AC 110 V / 220 V adapter — runs off-grid on battery or solar, or on mains through the adapter.
- IP65 protection, the highest protection rating published in the range.
- 15 mm ports and a 200 W motor sized for small-bore RV and water-heater lines.
The permanent magnet DC motor draws only the power the duty needs, instead of running flat out like a conventional fixed-speed pump.
The specification confirmed for an order is the one stated in the order confirmation.
Technical data
Same fields, units and order for every model. Fields that are not published in the catalog are omitted.
Electrical
- Rated power
- 0.2 kW (0.27 HP)
- Power supply
- DC 24 V
- Protection class
- IP65
- Insulation class
- Class H
Hydraulic
- Maximum flow
- 1.5 m³/h (6.6 GPM)
- Maximum head
- 25 m (82 ft)
- Inlet
- 15 mm (0.59 in)
- Outlet
- 15 mm (0.59 in) (same as inlet)
Construction and environment
- Pump body and wetted parts
- Reinforced Nylon
- Motor type
- Permanent magnet DC brushless motor
- Liquid temperature range
- 0 - 65 °C
- Pumped liquid
- Clean water
DC family comparison
The three DC models share one hydraulic platform. The table shows what is identical and what differs.
| Item | MT24-25 | ISC-200 | ISC2-200 |
|---|---|---|---|
| Control | 1 button | 1 button | 2 buttons |
| Supply | DC 24 V | DC 24 V | DC 24 V |
| Power | 200 W | 200 W | 200 W |
| Maximum head | 25 m | 25 m | 25 m |
| Maximum flow | 25 L/min | 25 L/min | 25 L/min |
| Head at 25 L/min | about 0 m | about 5 m | about 0 m |
| Protection | IP65 | IP65 | IP65 |
| Insulation class | Class H | Class H | Class H |
| Connection | 15 mm | 15 mm | 15 mm |
| Pump body | Reinforced Nylon | Reinforced Nylon | Reinforced Nylon |
| Weight | 1 kg | 1 kg | 1 kg |
| Body size | 5.5 x 8 x 13 cm | 5.5 x 8 x 13 cm | 5.5 x 8 x 13 cm |
| Colors | White / Black | White / Black | White / Black |
Performance curve
Head against capacity as published in the catalog, with metric and imperial axes.
Overall dimension
All dimensions in millimetres unless stated otherwise. Dimension references Body width, Body depth, Body height are printed on catalog page 18.
| Model | Dimensions | Weight |
|---|---|---|
| MT24-25 |
| 1 kg |
Applications
Off-grid and mobile water boosting — RVs, solar-water systems and water heaters where mains power is absent or 24 V DC is the supply.
- Pipeline Boosting
- Hot Water Areas
- Tap & Fixture Boosting
- RV & Caravan Water Supply
Installation notes
Points that apply to this model, from the catalog and the site installation guidance.
- Compact body fits a standard sink cabinet
- Quiet running keeps the kitchen comfortable
- Lifts pressure for taps, showers and rooftop tanks
- Connection: Inlet and outlet threaded 15 mm.
Package
Packing information published for this model.
- Packing
- Carton
- Net weight
- 1 kg
Ordering information
Ordering information for the 2026 range.
- MOQ and packaging
- Minimum order quantity (MOQ): 50 units in kraft-paper cartons, with your brand label available. 300 units in color boxes, with the packaging layout designed entirely to your requirements.
- Lead time
- 30 days
- OEM / ODM
- Supported: custom voltage and frequency builds, own brand nameplate and rating labels, and adapted carton and shipping marks.
- Control variants
- Panel with 1 button for ISC-200 and MT24-25, 2 buttons for ISC2-200.
- Connection
- 15 mm (0.59 in)
Warranty: 1 yearWarranty and After-sales
Power supply and CE marking
Statements that apply to the range, published so buyers can quote them in their own files.
Power supply and certification for this model are listed in the technical data above. The range carries the CE marking for sale in the European Economic Area; the technical file was verified by ECM, Certificate No. 0P230414.FMEUN01.
Downloads
Datasheet, performance curve and dimension data, generated from the catalog data on this page.
Datasheet
Model, key specifications, power stage data and packing details generated from the catalog data on this page.
Performance Curve
Head and flow curve for this model, redrawn from the catalog axis ranges.
Dimension Data
Dimension table for each model in the range, in millimetres and inches.
Working on an MT24-25 project? Send the duty point, market and volume and the export team will confirm the configuration.