Description
M131 Controller – intelligent controller for three-phase pumps
The IBO M131 controller is a professional electronic controller designed to control the operation of a single three-phase pump and provide comprehensive protection. It automates switching the pump on and off depending on the water level or pressure, while continuously monitoring the power supply and motor operating parameters. It features effective dry-run protection that works even without installing probes in the well, keeping installation simple and the pump permanently protected.
Who it is for
- Installers and electricians – the M131 controller organizes the connection of a three-phase pump and simplifies the selection of protective devices thanks to calibration tailored to the specific motor.
- Homeowners and farms with a well water intake – the controller automates water supply and protects the pump against costly failures.
- Farms and horticultural operations – the device monitors pump operation when irrigating fields, greenhouses, and gardens, as well as when managing rainwater.
- Facilities with pumping stations and tanks – the controller switches the pump on and off according to the level or pressure, while an overflow probe warns of tank overfilling.
Application
The M131 controller is suitable wherever a single three-phase pump needs to operate automatically and reliably. It works with submersible pumps used to supply water from wells, surface pumps in water supply systems, and drainage pumps in tanks, septic tanks, and drainage systems. It receives the switching signal from level probes, floats, or a pressure switch working with a pressure tank, allowing it to be adapted to a wide variety of configurations.
The device controls the pump according to the water level in the tank from which it pumps, the level in the target tank, or the system pressure, and in drainage mode it also signals overflow. It is used in houses, apartments, holiday homes, farms, and industrial installations.
Features of the M131 controller
The heart of the device is an electronic system with a clear LCD display that continuously shows the pump operating status, parameters, and fault messages. The M131 uses dual dry-run protection – it analyzes the signal from probes or a float as well as the current draw of the operating pump. Importantly, dry-run protection also works without installing probes in the well itself: after bridging the appropriate inputs, the controller detects dry running based on current draw and stops the pump in time. After a fault occurs, the device automatically checks the conditions and resumes operation only after the problem has been resolved.
The controller supports automatic and manual modes, while the built-in function switch allows the operating scheme to be selected for installations with a float, probes, or a pressure switch. As a three-phase device, the M131 should be connected by a qualified installer in accordance with the instructions and applicable regulations. The key parameters are listed below. Data differentiating the two power variants are provided after the slash.
- Brand: IBO
- Type: intelligent controller / pump controller
- Power supply: 3~400 V, 50 Hz
- Power range of supported pumps (lower / higher variant): 0.75–4 kW
- Protection rating: IP22
- Operating modes: automatic / manual
- Protections: dry running, overload, phase failure, voltage drop and surge, overvoltage and undervoltage, overvoltage surge, short circuit
- Operating temperature range: -25°C to +55°C
- Included: 3 measuring probes
IBO – 24-month (2-year) manufacturer’s warranty.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certifications.
Frequently asked questions (FAQ) – M131 controller
What is the M131 controller used for?
The M131 controller is an intelligent controller for automatically operating and protecting a single three-phase pump. It switches the pump on and off depending on the water level or system pressure and protects it against dry running and power supply irregularities.
Which pumps can be connected to the M131 controller?
The M131 works with three-phase submersible, surface, and drainage pumps powered at 3~400 V. It is available in two supported pump power variants: 0.75–4 kW and 5.5–7.5 kW, making it suitable for various installations.
Does the M131 protect the pump against dry running without probes installed in the well?
Yes. The M131 can detect dry running by analyzing the pump’s current draw, so effective protection also works when installing probes in the well is difficult or costly. When dry running is detected, the pump is stopped and the controller attempts to restart it after the problem has been resolved.
How does the M131 controller differ from the M121 model?
The M121 is designed for single-phase pumps powered at 230 V, while the M131 supports three-phase 400 V pumps and additionally protects them against phase failure. You can find the full range of controllers in the controllers category.
Can the M131 controller be installed outdoors?
The M131 has an IP22 protection rating and is designed for indoor installation, in a vertical position, in a dry and well-ventilated place. The device must be protected against water, including rainwater, so when the pump operates outdoors, the controller itself should be installed indoors or in a suitable protected enclosure.
Where can I buy the M131 controller?
As the manufacturer, we do not sell directly. The IBO M131 controller can be purchased from our sales partners, installation wholesalers, and authorized online distributors.
What is the warranty on the M131 controller?
IBO – 24-month (2-year) manufacturer’s warranty.
- Type: Pump controller,
- Number of pumps supported: 1,
- Maximum power: 4.0 kW,
- Power supply: 300–400 V,
- Frequency: Hz,
- Maximum supported current: A
- Protection rating:
- Maximum liquid temperature: °C
- Dimensions: mm,
- Weight: 1.5 kg.
CONTROLLER OPERATING FUNCTIONS
• Automatic attempt to restart the pump after an emergency shutdown triggered by one of the protective functions. Different emergency situations have different automatic restart delays.
• Ability to calibrate and adjust the controller for operation with a given pump.
• Switching the pump on and off depending on:
o The water level in the tank from which water is pumped,
o The water level in the tank into which water is pumped,
o The pressure value in the tank into which water is pumped,
• Ability to operate in automatic or manual mode.
• Various on/off signal sources: probes, floats, pressure sensors.
CONTROLLER PROTECTIVE FUNCTIONS
• Dual dry-run protection using:
o Fluid-level probes/sensors,
o Analysis of the operating pump’s current consumption,
• Overload protection,
• Undervoltage protection,
• Voltage surge protection,
• Overvoltage protection,
• Short-circuit protection.
Download: M_131_instrukcja_148x210-PL.pdf
Download: GARAN_Prawny_obowiazek_zapewnienia_zgodnosci_towaru_z_umowa.pdf
M131 Controller – intelligent controller for three-phase pumps
The IBO M131 controller is a professional electronic controller designed to control the operation of a single three-phase pump and provide comprehensive protection. It automates switching the pump on and off depending on the water level or pressure, while continuously monitoring the power supply and motor operating parameters. It features effective dry-run protection that works even without installing probes in the well, keeping installation simple and the pump permanently protected.
Who it is for
- Installers and electricians – the M131 controller organizes the connection of a three-phase pump and simplifies the selection of protective devices thanks to calibration tailored to the specific motor.
- Homeowners and farms with a well water intake – the controller automates water supply and protects the pump against costly failures.
- Farms and horticultural operations – the device monitors pump operation when irrigating fields, greenhouses, and gardens, as well as when managing rainwater.
- Facilities with pumping stations and tanks – the controller switches the pump on and off according to the level or pressure, while an overflow probe warns of tank overfilling.
Application
The M131 controller is suitable wherever a single three-phase pump needs to operate automatically and reliably. It works with submersible pumps used to supply water from wells, surface pumps in water supply systems, and drainage pumps in tanks, septic tanks, and drainage systems. It receives the switching signal from level probes, floats, or a pressure switch working with a pressure tank, allowing it to be adapted to a wide variety of configurations.
The device controls the pump according to the water level in the tank from which it pumps, the level in the target tank, or the system pressure, and in drainage mode it also signals overflow. It is used in houses, apartments, holiday homes, farms, and industrial installations.
Features of the M131 controller
The heart of the device is an electronic system with a clear LCD display that continuously shows the pump operating status, parameters, and fault messages. The M131 uses dual dry-run protection – it analyzes the signal from probes or a float as well as the current draw of the operating pump. Importantly, dry-run protection also works without installing probes in the well itself: after bridging the appropriate inputs, the controller detects dry running based on current draw and stops the pump in time. After a fault occurs, the device automatically checks the conditions and resumes operation only after the problem has been resolved.
The controller supports automatic and manual modes, while the built-in function switch allows the operating scheme to be selected for installations with a float, probes, or a pressure switch. As a three-phase device, the M131 should be connected by a qualified installer in accordance with the instructions and applicable regulations. The key parameters are listed below. Data differentiating the two power variants are provided after the slash.
- Brand: IBO
- Type: intelligent controller / pump controller
- Power supply: 3~400 V, 50 Hz
- Power range of supported pumps (lower / higher variant): 0.75–4 kW
- Protection rating: IP22
- Operating modes: automatic / manual
- Protections: dry running, overload, phase failure, voltage drop and surge, overvoltage and undervoltage, overvoltage surge, short circuit
- Operating temperature range: -25°C to +55°C
- Included: 3 measuring probes
IBO – 24-month (2-year) manufacturer’s warranty.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certifications.
Frequently asked questions (FAQ) – M131 controller
What is the M131 controller used for?
The M131 controller is an intelligent controller for automatically operating and protecting a single three-phase pump. It switches the pump on and off depending on the water level or system pressure and protects it against dry running and power supply irregularities.
Which pumps can be connected to the M131 controller?
The M131 works with three-phase submersible, surface, and drainage pumps powered at 3~400 V. It is available in two supported pump power variants: 0.75–4 kW and 5.5–7.5 kW, making it suitable for various installations.
Does the M131 protect the pump against dry running without probes installed in the well?
Yes. The M131 can detect dry running by analyzing the pump’s current draw, so effective protection also works when installing probes in the well is difficult or costly. When dry running is detected, the pump is stopped and the controller attempts to restart it after the problem has been resolved.
How does the M131 controller differ from the M121 model?
The M121 is designed for single-phase pumps powered at 230 V, while the M131 supports three-phase 400 V pumps and additionally protects them against phase failure. You can find the full range of controllers in the controllers category.
Can the M131 controller be installed outdoors?
The M131 has an IP22 protection rating and is designed for indoor installation, in a vertical position, in a dry and well-ventilated place. The device must be protected against water, including rainwater, so when the pump operates outdoors, the controller itself should be installed indoors or in a suitable protected enclosure.
Where can I buy the M131 controller?
As the manufacturer, we do not sell directly. The IBO M131 controller can be purchased from our sales partners, installation wholesalers, and authorized online distributors.
What is the warranty on the M131 controller?
IBO – 24-month (2-year) manufacturer’s warranty.



