
U SERIES · TYPE B SUBMERSIBLE SEWAGE PUMP
U 0.45-1.5 kW 2P Type B sewage pump range
One product family with eight performance rows. Counted page codes are the B and SB forms (7 published codes); single-phase models can be configured with a float switch.
● 0.45-1.5 kW · 7 models · 7 configurations

Series Overview
Key specifications shared across the U 0.45-1.5 kW 2P Type B series.
Published data specifies class F insulation, built-in motor protection, water temperature up to 40°C, pH 6-10, 380 V three-phase and 220 V single-phase supply. Separate 50 Hz and 60 Hz curves are shown. North American pages show motor power in HP, flow in GPM and head in ft.
Model Range
Compare hydraulic performance across all available power ratings.
Eight performance rows, B and SB counted codes. Rated and maximum columns show published data's combined flow / head values in GPM / ft. Outlet is 50 mm and impeller passage is 35 mm throughout. Single-phase models can be configured with a float switch.
| Model | Phase | Motor HP | Outlet mm | Rated flow / head GPM / ft | Max flow / head GPM / ft | Passage mm | Cable mm² |
|---|---|---|---|---|---|---|---|
| 50U2.45B | 3~ | 0.6 | 50 | 44.0 / 19.7 | 74.8 / 32.8 | 35 | 1.0 |
| 50U2.45SB | 1~ | 0.6 | 50 | 44.0 / 19.7 | 74.8 / 32.8 | 35 | 1.0 |
| 50U2.75B | 3~ | 1.0 | 50 | 44.0 / 26.2 | 92.5 / 42.7 | 35 | 1.0 |
| 50U2.75SB | 1~ | 1.0 | 50 | 44.0 / 26.2 | 92.5 / 42.7 | 35 | 1.0 |
| 50U21.1B | 3~ | 1.5 | 50 | 66.0 / 26.2 | 101.3 / 45.9 | 35 | 1.0 |
| 50U21.1SB | 1~ | 1.5 | 50 | 66.0 / 26.2 | 101.3 / 45.9 | 35 | 1.0 |
| 50U21.5B | 3~ | 2.0 | 50 | 66.0 / 39.4 | 123.3 / 59.1 | 35 | 1.0 |
| 50U21.5SB | 1~ | 2.0 | 50 | 66.0 / 39.4 | 123.3 / 59.1 | 35 | 1.5 |
Published data includes 50U21.1B as a three-phase performance row, but the current catalog has no matching configuration record. SBF float codes share the corresponding SB hydraulic row and are not separate counted table rows.

0.45-0.75 KW WITHOUT FLOAT SWITCH
50U2.45B / 50U2.45SB / 50U2.75B / 50U2.75SB
Four distinct catalog visuals are shown once and mapped to their published Type B codes.
0.45-0.75 KW WITH FLOAT SWITCH
50U2.45SBF / 50U2.75SBF
Four distinct catalog visuals are shown once and mapped to their published Type B codes.
1.1-1.5 KW WITHOUT FLOAT SWITCH
50U21.1SB / 50U21.5B / 50U21.5SB
Four distinct catalog visuals are shown once and mapped to their published Type B codes.
1.1-1.5 KW WITH FLOAT SWITCH
50U21.1SBF / 50U21.5SBF
Four distinct catalog visuals are shown once and mapped to their published Type B codes.Configurations
Available 50 Hz / 60 Hz electrical configurations for each model.
Counted page codes are the B and SB forms (7 codes, 7 frequency records). Single-phase models can be configured with a float switch; SBF codes are not separate table rows. 60 Hz is available as a customization.
| Exact catalog code | Hz | Phase / V | Power HP | Outlet mm | Rated flow / head GPM / ft | Max flow / head GPM / ft | Drawing |
|---|---|---|---|---|---|---|---|
| 50U2.45B | 50 | 3 / 380 | 0.6 | 50 | 44.0 / 19.7 | 74.8 / 32.8 | View |
| 50U2.45SB | 50 | 1 / 220 | 0.6 | 50 | 44.0 / 19.7 | 74.8 / 32.8 | View |
| 50U2.75B | 50 | 3 / 380 | 1.0 | 50 | 44.0 / 26.2 | 92.5 / 42.0 | View |
| 50U2.75SB | 50 | 1 / 220 | 1.0 | 50 | 44.0 / 26.2 | 92.0 / 42.0 | View |
| 50U21.1SB | 50 | 1 / 220 | 1.5 | 50 | 66.0 / 26.2 | 101.3 / 45.6 | View |
| 50U21.5B | 50 | 3 / 380 | 2.0 | 50 | 66.0 / 39.4 | 123.3 / 57.7 | View |
| 50U21.5SB | 50 | 1 / 220 | 2.0 | 50 | 66.0 / 39.4 | 123.3 / 57.7 | View |
50U21.1B is present in published data performance table but has no matching current catalog record. 60 Hz is customizable; the table shows published 50 Hz records only.
Representative catalog drawing · 50U21.5B · 50 HzConstruction
Cast-iron body, 35 mm solids passage.
- Discharge connection
- ABS; cast-iron alternate connection
- Upper cover / motor body
- Cast iron / cast iron
- Pump body / impeller
- Cast iron / cast iron
- Rotor shaft
- AISI 304 stainless steel
- Bearings
- Ball bearings
- Mechanical seal
- SiC-Ceramic / Carbon-Ceramic
SOURCE & REVIEW
Evidence stays tied to Type B.
Published source
MEUDY sewage pump catalog 2026.6.6, printed pages 47-48 with specifications, materials, 50/60 Hz curves, performance rows and dimensions.
Current catalog
Seven counted B/SB phase, voltage, image and dimension assignments come from current English U records. Float-switch images remain for reference.
Confirmation
The missing 50U21.1B catalog record, any customized 60 Hz scope, certification and North American electrical suitability require written confirmation.
U TYPE B FAQ
Selection questions answered from evidence.
How is the U 0.45-1.5 kW 2P Type B range grouped?
The published data treats Type B as one product entry with eight performance rows. Single-phase models can be configured with a float switch; SBF codes are not separate counted rows.
How many Type B codes are counted on this page?
Counted page codes are the B and SB forms currently published (7 codes, 7 records). Published data three-phase 50U21.1B row has no matching current catalog record. SBF float codes remain outside the count.
What does SBF mean?
Published data states that U...SBF identifies a single-phase Type B pump with a float switch. SB rows are single phase without the float-switch suffix.
Can Type B be supplied for 60 Hz?
Yes. 60 Hz is customizable. The current English catalog publishes 50 Hz Type B records only; confirm the approved 60 Hz curve when ordering a customized frequency.
Can the maximum flow and head be used as one duty point?
No. The 123.3 GPM maximum flow and 59.1 ft maximum head are separate range limits. Confirm the operating point against the appropriate curve.
Continue from published data to a reviewed selection