Data sheet
| Hydraulic data | |
|---|---|
| Minimum efficiency index (MEI) | 0.4 |
| Maximum operating pressure PN | 10 bar |
| Min. fluid temperature Tmin | -10 °C |
| Max. fluid temperature Tmax | 90 °C |
| Min. ambient temperature Tmin | 0 °C |
| Max. ambient temperature Tmax | 40 °C |
| Motor data | |
|---|---|
| Mains connection | 3~400 V, 50 Hz |
| Number of poles | 4 |
| Voltage tolerance | ±10 % |
| Motor efficiency class | IE3 |
| Rated power P2 | 11 kW |
| Rated current IN | 24 A |
| Rated speed n | 1450 1/min |
| Power factor cos φ100 | 0.73 |
| Motor efficiency 50% ηM 50% | 90.6 % |
| Motor efficiency 75% ηM 75% | 91.6 % |
| Motor efficiency 100% ηM 100% | 91.4 % |
| Insulation class | F |
| Protection class motor | IP55 |
| Materials | |
|---|---|
| Pump housing | Stainless steel |
| Impeller | Stainless steel |
| Shaft | Stainless steel |
| Mechanical seal | Q1Q1VGG |
| Installation dimensions | |
|---|---|
| Pipe connection on the suction side DNs | DN 150 |
| Pipe connection on the discharge side DNd | DN 125 |
Pump curves
Dimensions and dimensions drawings
Wilo-BM
| Product description | BM-S 125/235-11/4 |
| Dimensions A | 140 mm |
| Dimensions f | 710 mm |
| Pump flange dimensions ØD | 285 mm |
| Dimensions Ød | 211 |
| Pump pipe connection pressure side B1 | 150 mm |
| Pump flange dimensions Ø k | 240 mm |
| Number of drilled holes n | 8 |
| Dimensions dL | 22 mm |
| Dimensions S | 18 |
| Dimensions DN1 | DN 150 |
| Dimensions b | 80 mm |
| Dimensions D | 14 mm |
| Dimensions H1 | 250 mm |
| Dimensions H2 | 355 mm |
| Dimensions M1 | 160 mm |
| Dimensions M2 | 120 mm |
| Dimensions n1 | 400 mm |
| Dimensions n2 | 315 mm |
| Dimensions s | 18 mm |
| Dimensions x1 | 410 mm |
| Dimensions x2 | 370 mm |
| Dimensions z1 | 320 mm |
| Dimensions z2 | 255 mm |
| Dimensions W | 218 mm |
Ordering information
| Product data | |
|---|---|
| Brand | Wilo |
| Product description | BM-S 125/235-11/4 |
| Article number | 2103385 |
| EAN number | 4048482064963 |
| Colour | Green |
| Minimum order quantity | 1 |
| Date of sales availability | 2009-01-01 |
| Packaging | |
|---|---|
| Packaging type | One-way pallet |
| Packaging property | Transport packaging |
| Pieces per pallet | 1 |
| Number per layer | 1 |
| Dimension, weight | |
|---|---|
| Length with packaging | 970 mm |
| Length L | 850 mm |
| Height with packaging | 635 mm |
| Height H | 605 mm |
| Width with packaging | 600 mm |
| Width W | 420 mm |
| Gross weight, approx. m | 233 kg |
| Net weight, approx. m | 226 kg |
Single-stage glanded centrifugal pump in compact close-coupled design with directly flanged three-phase motor and one-piece shaft. With forced-flow circulation, bidirectional bellows mechanical seal and cavitation-reducing impeller. The pump is suitable for installation on a base.
| Operating data | |
|---|---|
| Min. fluid temperature Tmin | -10 °C |
| Max. fluid temperature Tmax | 90 °C |
| Min. ambient temperature Tmin | 0 °C |
| Max. ambient temperature Tmax | 40 °C |
| Maximum operating pressure PN | 10 bar |
| Minimum efficiency index (MEI) | 0.4 |
| Motor data | |
|---|---|
| Motor efficiency class | IE3 |
| Mains connection | 3~400 V, 50 Hz |
| Voltage tolerance | ±10 % |
| Rated power P2 | 11000 W |
| Rated speed n | 1450 1/min |
| Rated current IN | 24 A |
| Power factor cos φ100 | 0.73 |
| Motor efficiency 50% ηM 50% | 90.6 % |
| Motor efficiency 75% ηM 75% | 91.6 % |
| Motor efficiency 100% ηM 100% | 91.4 % |
| Insulation class | F |
| Protection class | IP55 |
| Materials | |
|---|---|
| Pump housing | Stainless steel |
| Impeller | Stainless steel |
| Shaft | Stainless steel |
| Shaft seal | Q1Q1VGG |
| Installation dimensions | |
|---|---|
| Pipe connection on the suction side DNs | DN 150 |
| Pipe connection on the discharge side DNd | DN 125 |
| Ordering information | |
|---|---|
| Brand | Wilo |
| Product description | BM-S 125/235-11/4 |
| Net weight, approx. m | 226 kg |
| Article number | 2103385 |
Filter by
Datasheet and documentation
Installation type
Continuous, infinitely variable control, differential pressure-sensitive CC-HVAC system (24) | |||
CC-HVAC system | |||
CC-HVAC-System 1x24A-T34-SD-FC-BM | 2527842 | ||
CC-HVAC-System 2x24A-T34-SD-FC-BM | 2527843 | ||
CC-HVAC-System 3x24A-T34-SD-FC-BM | 2527844 | ||
CC-HVAC-System 4x24A-T34-SD-FC-BM | 2527845 | ||
CC-HVAC-System 5x24A-T34-SD-FC-BM | 2527846 | ||
CC-HVAC-System 6x24A-T34-SD-FC-BM | 2527847 | ||
Antenna GSM/GPRS | |||
D-network dual-band antenna with 3 m cable | 2533862 | ||
D-network tri-band antenna 10 m cable | 2533863 | ||
D-network tri-band antenna 15 m cable | 2533864 | ||
Outdoor temperature sensor Pt 100 | |||
Outdoor temperature sensor Pt 100 | 2533772 | ||
DDG impulse selector | |||
DDG impulse selector | 2533770 | ||
BMS base module | |||
BMS base module | 2533800 | ||
Communication module ModBus | |||
Communication module Modbus RTU | 2533869 | ||
Pump signalling module | |||
Signalling module pump 1-2 | 2533812 | ||
Signalling module pump 3-6 | 2533836 | ||
Signal converter retrofit kit | |||
Signal converter 0-10 V / 0-20 mA | 2534992 | ||
Connection cable control modules/signalling modules | |||
Signalling modules connecting cable | 2533890 | ||
Control modules connecting cable | 2533790 | ||
PTC thermistor tripping unit | |||
PTC thermistor tripping unit | 509275993 | ||
DDG (4-20mA) | |||
Wilo-DDG 10 Signal Trans.(4-20mA)2G VP. | 2136454 | ||
Wilo-DDG 20 Signal Trans.(4-20mA)2G VP. | 2136456 | ||
Wilo-DDG 40 Signal Trans.(4-20mA)2G VP. | 2136458 | ||
Wilo-DDG 60 Signal Trans.(4-20mA)2G VP. | 2136460 | ||
Wilo-DDG 100 Signal Trans.(4-20mA) | 2211740 | ||
Continuous, infinitely variable control, temperature-dependent CC-HVAC system (20) | |||
CC-HVAC system | |||
CC-HVAC-System 1x24A-T34-SD-FC-BM | 2527842 | ||
CC-HVAC-System 2x24A-T34-SD-FC-BM | 2527843 | ||
CC-HVAC-System 3x24A-T34-SD-FC-BM | 2527844 | ||
CC-HVAC-System 4x24A-T34-SD-FC-BM | 2527845 | ||
CC-HVAC-System 5x24A-T34-SD-FC-BM | 2527846 | ||
CC-HVAC-System 6x24A-T34-SD-FC-BM | 2527847 | ||
Antenna GSM/GPRS | |||
D-network dual-band antenna with 3 m cable | 2533862 | ||
D-network tri-band antenna 10 m cable | 2533863 | ||
D-network tri-band antenna 15 m cable | 2533864 | ||
Outdoor temperature sensor Pt 100 | |||
Outdoor temperature sensor Pt 100 | 2533772 | ||
BMS base module | |||
BMS base module | 2533800 | ||
Communication module ModBus | |||
Communication module Modbus RTU | 2533869 | ||
Pump signalling module | |||
Signalling module pump 1-2 | 2533812 | ||
Signalling module pump 3-6 | 2533836 | ||
Signal converter retrofit kit | |||
Signal converter 0-10 V / 0-20 mA | 2534992 | ||
Temperature module | |||
Temperature module for systems with 1-3 pumps | 2534991 | ||
Temperature module for systems with 4-6 pumps | 2533771 | ||
Connection cable control modules/signalling modules | |||
Signalling modules connecting cable | 2533890 | ||
Control modules connecting cable | 2533790 | ||
PTC thermistor tripping unit | |||
PTC thermistor tripping unit | 509275993 | ||
Continuous, infinitely variable control, differential pressure-sensitive SC-HVAC system (33) | |||
Antenna GSM/GPRS | |||
D-network dual-band antenna with 3 m cable | 2533862 | ||
D-network tri-band antenna 10 m cable | 2533863 | ||
D-network tri-band antenna 15 m cable | 2533864 | ||
Outdoor temperature sensor Pt 100 | |||
Outdoor temperature sensor Pt 100 | 2533772 | ||
DDG impulse selector | |||
DDG impulse selector | 2533770 | ||
SC communication module BACnet | |||
SC-communication module BACnet MS/TP (slave) | 2538242 | ||
Communication module LON (SC) | |||
Communication module LON (SC) | 2538243 | ||
Pump signalling module | |||
Signalling module pump 1-2 | 2533812 | ||
Signalling module pump 3-6 | 2533836 | ||
SC-HVAC signal board | |||
SC-HVAC signal board | 2119646 | ||
PTC thermistor tripping unit | |||
PTC thermistor tripping unit | 509275993 | ||
Communication module GSM (SC) | |||
Communication module GSM (SC) | 2542216 | ||
SC/SC-FC-HVAC system | |||
SC-HVAC system 1x24A-WM (direct starting) | 2545342 | ||
SC-HVAC system 2x24A-WM (direct starting) | 2545343 | ||
SC-HVAC system 3x24A-WM (direct starting) | 2545344 | ||
SC-HVAC system 4x24A-WM (direct starting) | 2545345 | ||
SC-HVAC system 1x24A-WM (star-delta-starting) | 2545362 | ||
SC-HVAC system 2x24A-WM (star-delta-starting) | 2545363 | ||
SC-HVAC system 3x24A-WM (star-delta-starting) | 2545364 | ||
SC-HVAC system 4x24A-WM (star-delta-starting) | 2545365 | ||
SC-FC-HVAC system 1x24A-FC-BM (direct starting) | 2545458 | ||
SC-FC-HVAC system 2x24A-FC-BM (direct starting) | 2545459 | ||
SC-FC-HVAC system 3x24A-FC-BM (direct starting) | 2545460 | ||
SC-FC-HVAC system 4x24A-FC-BM (direct starting) | 2545461 | ||
SC-FC-HVAC system 1x24A-FC-BM (star-delta-starting) | 2545478 | ||
SC-FC-HVAC system 2x24A-FC-BM (star-delta-starting) | 2545479 | ||
SC-FC-HVAC system 3x24A-FC-BM (star-delta-starting) | 2545480 | ||
SC-FC-HVAC system 4x24A-FC-BM (star-delta-starting) | 2545481 | ||
DDG (4-20mA) | |||
Wilo-DDG 10 Signal Trans.(4-20mA)2G VP. | 2136454 | ||
Wilo-DDG 20 Signal Trans.(4-20mA)2G VP. | 2136456 | ||
Wilo-DDG 40 Signal Trans.(4-20mA)2G VP. | 2136458 | ||
Wilo-DDG 60 Signal Trans.(4-20mA)2G VP. | 2136460 | ||
Wilo-DDG 100 Signal Trans.(4-20mA) | 2211740 | ||
Continuous, infinitely variable control, temperature-dependent SC-HVAC system (27) | |||
Antenna GSM/GPRS | |||
D-network dual-band antenna with 3 m cable | 2533862 | ||
D-network tri-band antenna 10 m cable | 2533863 | ||
D-network tri-band antenna 15 m cable | 2533864 | ||
Outdoor temperature sensor Pt 100 | |||
Outdoor temperature sensor Pt 100 | 2533772 | ||
SC communication module BACnet | |||
SC-communication module BACnet MS/TP (slave) | 2538242 | ||
Communication module LON (SC) | |||
Communication module LON (SC) | 2538243 | ||
Pump signalling module | |||
Signalling module pump 1-2 | 2533812 | ||
Signalling module pump 3-6 | 2533836 | ||
SC-HVAC signal board | |||
SC-HVAC signal board | 2119646 | ||
PTC thermistor tripping unit | |||
PTC thermistor tripping unit | 509275993 | ||
Communication module GSM (SC) | |||
Communication module GSM (SC) | 2542216 | ||
SC/SC-FC-HVAC system | |||
SC-HVAC system 1x24A-WM (direct starting) | 2545342 | ||
SC-HVAC system 2x24A-WM (direct starting) | 2545343 | ||
SC-HVAC system 3x24A-WM (direct starting) | 2545344 | ||
SC-HVAC system 4x24A-WM (direct starting) | 2545345 | ||
SC-HVAC system 1x24A-WM (star-delta-starting) | 2545362 | ||
SC-HVAC system 2x24A-WM (star-delta-starting) | 2545363 | ||
SC-HVAC system 3x24A-WM (star-delta-starting) | 2545364 | ||
SC-HVAC system 4x24A-WM (star-delta-starting) | 2545365 | ||
SC-FC-HVAC system 1x24A-FC-BM (direct starting) | 2545458 | ||
SC-FC-HVAC system 2x24A-FC-BM (direct starting) | 2545459 | ||
SC-FC-HVAC system 3x24A-FC-BM (direct starting) | 2545460 | ||
SC-FC-HVAC system 4x24A-FC-BM (direct starting) | 2545461 | ||
SC-FC-HVAC system 1x24A-FC-BM (star-delta-starting) | 2545478 | ||
SC-FC-HVAC system 2x24A-FC-BM (star-delta-starting) | 2545479 | ||
SC-FC-HVAC system 3x24A-FC-BM (star-delta-starting) | 2545480 | ||
SC-FC-HVAC system 4x24A-FC-BM (star-delta-starting) | 2545481 | ||
Electrical accessories
Pump control (2) | |||
Wilo-EFC | |||
EFC11 3x380-480V 50/60Hz IP55 | 2193439 | ||
EFC15 3x380-480V 50/60Hz IP55 | 2193440 | ||
Pump control/accessories (28) | |||
Sensor card EFC | |||
Sensor Input Card MCB Wilo-EFC | 6084915 | ||
Communication module CC | |||
CC communication module | 2533850 | ||
Connection cable control modules/signalling modules | |||
Control modules connecting cable | 2533790 | ||
Signalling modules connecting cable | 2533890 | ||
BMS base module | |||
BMS base module | 2533800 | ||
Antenna GSM/GPRS | |||
D-network dual-band antenna with 3 m cable | 2533862 | ||
D-network tri-band antenna 10 m cable | 2533863 | ||
D-network tri-band antenna 15 m cable | 2533864 | ||
SMA/FME adapter | 2545548 | ||
Pump signalling module | |||
Signalling module pump 1-2 | 2533812 | ||
Signalling module pump 3-6 | 2533836 | ||
Outdoor temperature sensor Pt 100 | |||
Outdoor temperature sensor Pt 100 | 2533772 | ||
Signal converter retrofit kit | |||
Signal converter 0-10 V / 0-20 mA | 2534992 | ||
DDG impulse selector | |||
DDG impulse selector | 2533770 | ||
Temperature module | |||
Temperature module for systems with 4-6 pumps | 2533771 | ||
Temperature module for systems with 1-3 pumps | 2534991 | ||
Communication module ModBus | |||
Communication module Modbus RTU | 2533869 | ||
SC communication module BACnet | |||
SC-communication module BACnet MS/TP (slave) | 2538242 | ||
BACnet IP SC communication module | 2553366 | ||
Communication module LON (SC) | |||
Communication module LON (SC) | 2538243 | ||
Communication module GSM (SC) | |||
Communication module GSM (SC) | 2542216 | ||
SC-HVAC signal board | |||
SC-HVAC signal board | 2119646 | ||
Output filter EFC (150-500 m cable length) | |||
24.2 A sin IP54 Wilo-EFC filter | 6084564 | ||
24 A sin IP00 Wilo-EFC filter | 6084579 | ||
24 A sin IP20 Wilo-EFC filter | 6084905 | ||
Output filter EFC du/dt (up to 150m cable length) | |||
40 A du/dt IP54 Wilo-EFC filter | 6084544 | ||
40 A du/dt IP00 Wilo-EFC filter | 6084548 | ||
40 A du/dt IP20 Wilo-EFC filter | 6084553 | ||
Pump control/Comfort control system (6) | |||
CC-HVAC system | |||
CC-HVAC-System 1x24A-T34-SD-FC-BM | 2527842 | ||
CC-HVAC-System 2x24A-T34-SD-FC-BM | 2527843 | ||
CC-HVAC-System 3x24A-T34-SD-FC-BM | 2527844 | ||
CC-HVAC-System 4x24A-T34-SD-FC-BM | 2527845 | ||
CC-HVAC-System 5x24A-T34-SD-FC-BM | 2527846 | ||
CC-HVAC-System 6x24A-T34-SD-FC-BM | 2527847 | ||
Pump control/Smart control system (16) | |||
SC/SC-FC-HVAC system | |||
SC-HVAC system 1x24A-WM (direct starting) | 2545342 | ||
SC-HVAC system 2x24A-WM (direct starting) | 2545343 | ||
SC-HVAC system 3x24A-WM (direct starting) | 2545344 | ||
SC-HVAC system 4x24A-WM (direct starting) | 2545345 | ||
SC-HVAC system 1x24A-WM (star-delta-starting) | 2545362 | ||
SC-HVAC system 2x24A-WM (star-delta-starting) | 2545363 | ||
SC-HVAC system 3x24A-WM (star-delta-starting) | 2545364 | ||
SC-HVAC system 4x24A-WM (star-delta-starting) | 2545365 | ||
SC-FC-HVAC system 1x24A-FC-BM (direct starting) | 2545458 | ||
SC-FC-HVAC system 2x24A-FC-BM (direct starting) | 2545459 | ||
SC-FC-HVAC system 3x24A-FC-BM (direct starting) | 2545460 | ||
SC-FC-HVAC system 4x24A-FC-BM (direct starting) | 2545461 | ||
SC-FC-HVAC system 1x24A-FC-BM (star-delta-starting) | 2545478 | ||
SC-FC-HVAC system 2x24A-FC-BM (star-delta-starting) | 2545479 | ||
SC-FC-HVAC system 3x24A-FC-BM (star-delta-starting) | 2545480 | ||
SC-FC-HVAC system 4x24A-FC-BM (star-delta-starting) | 2545481 | ||
Pump control/interface module (5) | |||
IF Modules EFC | |||
Profibus DP MCA Wilo-EFC | 2193451 | ||
DeviceNet MCA Wilo-EFC | 2193452 | ||
Profinet MCA Wilo-EFC | 2193453 | ||
Ethernet/IP MCA Wilo-EFC | 2193454 | ||
Modbus TCP MCA Wilo-EFC | 2193455 | ||
Differential pressure detection (5) | |||
DDG (4-20mA) | |||
Wilo-DDG 10 Signal Trans.(4-20mA)2G VP. | 2136454 | ||
Wilo-DDG 20 Signal Trans.(4-20mA)2G VP. | 2136456 | ||
Wilo-DDG 40 Signal Trans.(4-20mA)2G VP. | 2136458 | ||
Wilo-DDG 60 Signal Trans.(4-20mA)2G VP. | 2136460 | ||
Wilo-DDG 100 Signal Trans.(4-20mA) | 2211740 | ||
Motor protection (1) | |||
PTC thermistor tripping unit | |||
PTC thermistor tripping unit | 509275993 | ||
With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.
Read moreExtended Warranty | |||
Extended Warranty Glanded pumps | 2219590 | ||
Supervision | |||
Supervision Glanded pumps | 2219321 | ||
Installation | |||
Installation Glanded pumps | 2219356 | ||
Commissioning | |||
Commissioning Glanded pumps | 2219391 | ||
Maintenance | |||
Maintenance BASIC Glanded pumps | 2219531 | ||
Maintenance COMFORT Glanded pumps | 2219493 | ||
Maintenance PREMIUM Glanded pumps | 2219546 | ||
System Optimisation | |||
System Optimisation Glanded pumps | 2219251 | ||
Energy Solutions | |||
Energy Solutions Glanded pumps | 2219240 | ||
Repairs | |||
Repair Glanded pumps | 2219610 | ||
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