Description
LCI-2 400V - three-phase pressure switch
The LCI-2 is a mechanical pressure switch by IBO that automatically switches a water pump on and off depending on the pressure in the domestic water supply system. The connection is a ¼" threaded socket (female thread). Two pressure settings maintain the water pressure within the specified range.
Who it is for
- Installers and plumbers – factory settings of 2/4 bar and adjustment with two screws allow the switch to be quickly commissioned and fine-tuned to the domestic water supply system.
- Users of domestic pressure booster sets – automatic switching of the pump on and off maintains the water pressure within the specified range without manual operation.
- Systems with 400 V three-phase pumps – a maximum current of 16 A and switching of three phases allow the pump to be controlled in typical domestic water supply systems.
- Technical service personnel – the IP44 protection rating and clear terminal strip make connection and inspections easier.
Applications
- Controlling water pumps in domestic and agricultural pressure booster sets.
- Automatically maintaining water pressure in domestic water supply systems equipped with a pressure tank.
- Operation with 400 V three-phase pumps and, when connected appropriately, with single-phase pumps.
The LCI-2 400V pressure switch is installed on the piping of the water system, ensuring that the connection is watertight.
Features of the LCI-2 pressure switch – description and technical data
The LCI-2 has two pressure settings: the switch-on pressure, at which it starts the pump, and the switch-off pressure, at which it stops the pump. The switch is factory-set to switch on at 2 bar and switch off at 4 bar, and the settings can be changed within the range of 2 to 8 bar. The minimum switch-on pressure is 1 bar, the maximum switch-off pressure is 6 bar, and the minimum difference between the thresholds is 1 bar.
The pressure is adjusted using two screws under the cover: the larger one controls the switch-off pressure, while the smaller one controls the switch-on pressure. Turning a screw clockwise increases the pressure, while turning it counterclockwise decreases it. The switch is designed to control three-phase pumps and, by using two pairs of terminals, can also control a single-phase pump. The device must be connected to a grounded power supply with the power switched off.
The hydraulic connection is a ¼" threaded socket (female thread), which connects it to the system piping. The switch must be protected from water, including atmospheric water.
- Brand: IBO
- Type: mechanical pressure switch for three-phase and single-phase pumps
- Power supply: 3~400 V, 50 Hz
- Pressure adjustment range: 2–8 bar
- Factory settings: switch-on 2 bar / switch-off 4 bar
- Minimum switch-on pressure: 1 bar
- Maximum switch-off pressure: 6 bar
- Minimum threshold difference: 1 bar
- Max. pressure: 8 bar
- Max. current: 16 A
- Protection rating: IP44
- Hydraulic connection: ¼" threaded socket (female thread), version without nipple
- Adjustment: two screws (larger – switch-off pressure, smaller – switch-on pressure)
IBO – 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certificates.
Frequently asked questions (FAQ) – LCI-2 400V pressure switch
What is the LCI-2 pressure switch used for?
The IBO LCI-2 automatically controls the operation of a water pump depending on the pressure in the system – it starts the pump when the pressure drops to the switch-on setting and stops it when the switch-off setting is reached. It is used in pressure booster sets equipped with a pressure tank.
What types of pumps is the LCI-2 switch designed for?
The LCI-2 switch is primarily designed for 400 V three-phase pumps, with a maximum current of 16 A. It can also control a single-phase pump – in this case, two pairs of terminals are used, while one pair remains unused.
What is the difference between the version without a nipple and the version with a nipple?
Both variants are the same LCI-2 pressure switch with identical operating parameters. The difference concerns the equipment: the version without a nipple does not include a connection nipple, and the connection to the piping is made through the ¼" threaded socket (female thread) in the switch body.
How do I set the switch-on and switch-off pressure in the LCI-2?
The pressure is adjusted using two screws: the larger one controls the switch-off pressure, while the smaller one controls the switch-on pressure. Turning clockwise increases the pressure, while turning counterclockwise decreases it. The settings range from 2–8 bar, with a minimum threshold difference of 1 bar.
How do I connect the LCI-2 without a nipple to the system?
The hydraulic connection is a ¼" threaded socket (female thread), which connects the switch to the system piping. Ensure that the connection is watertight – a leak may lead to switch failure or the risk of electric shock. Electrical connections must be made with the power switched off.
Where can I buy the LCI-2 pressure switch?
The manufacturer does not sell directly. The LCI-2 switch is available from commercial partners, plumbing supply wholesalers and authorised online distributors.
What warranty does the LCI-2 pressure switch have?
The IBO LCI-2 pressure switch is covered by a 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
- Type: ,
- Number of pumps supported: ,
- Maximum power: kW,
- Power supply: 3~400 V,
- Frequency: 50 Hz,
- Maximum supported current: 16.0 A
- Protection rating: IP44
- Maximum liquid temperature: °C
- Dimensions: mm,
- Weight: 0.1 kg.
LCI-2 400V - three-phase pressure switch
The LCI-2 is a mechanical pressure switch by IBO that automatically switches a water pump on and off depending on the pressure in the domestic water supply system. The connection is a ¼" threaded socket (female thread). Two pressure settings maintain the water pressure within the specified range.
Who it is for
- Installers and plumbers – factory settings of 2/4 bar and adjustment with two screws allow the switch to be quickly commissioned and fine-tuned to the domestic water supply system.
- Users of domestic pressure booster sets – automatic switching of the pump on and off maintains the water pressure within the specified range without manual operation.
- Systems with 400 V three-phase pumps – a maximum current of 16 A and switching of three phases allow the pump to be controlled in typical domestic water supply systems.
- Technical service personnel – the IP44 protection rating and clear terminal strip make connection and inspections easier.
Applications
- Controlling water pumps in domestic and agricultural pressure booster sets.
- Automatically maintaining water pressure in domestic water supply systems equipped with a pressure tank.
- Operation with 400 V three-phase pumps and, when connected appropriately, with single-phase pumps.
The LCI-2 400V pressure switch is installed on the piping of the water system, ensuring that the connection is watertight.
Features of the LCI-2 pressure switch – description and technical data
The LCI-2 has two pressure settings: the switch-on pressure, at which it starts the pump, and the switch-off pressure, at which it stops the pump. The switch is factory-set to switch on at 2 bar and switch off at 4 bar, and the settings can be changed within the range of 2 to 8 bar. The minimum switch-on pressure is 1 bar, the maximum switch-off pressure is 6 bar, and the minimum difference between the thresholds is 1 bar.
The pressure is adjusted using two screws under the cover: the larger one controls the switch-off pressure, while the smaller one controls the switch-on pressure. Turning a screw clockwise increases the pressure, while turning it counterclockwise decreases it. The switch is designed to control three-phase pumps and, by using two pairs of terminals, can also control a single-phase pump. The device must be connected to a grounded power supply with the power switched off.
The hydraulic connection is a ¼" threaded socket (female thread), which connects it to the system piping. The switch must be protected from water, including atmospheric water.
- Brand: IBO
- Type: mechanical pressure switch for three-phase and single-phase pumps
- Power supply: 3~400 V, 50 Hz
- Pressure adjustment range: 2–8 bar
- Factory settings: switch-on 2 bar / switch-off 4 bar
- Minimum switch-on pressure: 1 bar
- Maximum switch-off pressure: 6 bar
- Minimum threshold difference: 1 bar
- Max. pressure: 8 bar
- Max. current: 16 A
- Protection rating: IP44
- Hydraulic connection: ¼" threaded socket (female thread), version without nipple
- Adjustment: two screws (larger – switch-off pressure, smaller – switch-on pressure)
IBO – 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certificates.
Frequently asked questions (FAQ) – LCI-2 400V pressure switch
What is the LCI-2 pressure switch used for?
The IBO LCI-2 automatically controls the operation of a water pump depending on the pressure in the system – it starts the pump when the pressure drops to the switch-on setting and stops it when the switch-off setting is reached. It is used in pressure booster sets equipped with a pressure tank.
What types of pumps is the LCI-2 switch designed for?
The LCI-2 switch is primarily designed for 400 V three-phase pumps, with a maximum current of 16 A. It can also control a single-phase pump – in this case, two pairs of terminals are used, while one pair remains unused.
What is the difference between the version without a nipple and the version with a nipple?
Both variants are the same LCI-2 pressure switch with identical operating parameters. The difference concerns the equipment: the version without a nipple does not include a connection nipple, and the connection to the piping is made through the ¼" threaded socket (female thread) in the switch body.
How do I set the switch-on and switch-off pressure in the LCI-2?
The pressure is adjusted using two screws: the larger one controls the switch-off pressure, while the smaller one controls the switch-on pressure. Turning clockwise increases the pressure, while turning counterclockwise decreases it. The settings range from 2–8 bar, with a minimum threshold difference of 1 bar.
How do I connect the LCI-2 without a nipple to the system?
The hydraulic connection is a ¼" threaded socket (female thread), which connects the switch to the system piping. Ensure that the connection is watertight – a leak may lead to switch failure or the risk of electric shock. Electrical connections must be made with the power switched off.
Where can I buy the LCI-2 pressure switch?
The manufacturer does not sell directly. The LCI-2 switch is available from commercial partners, plumbing supply wholesalers and authorised online distributors.
What warranty does the LCI-2 pressure switch have?
The IBO LCI-2 pressure switch is covered by a 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.

