Product Overview

The Schneider Electric LC1F265R7 TeSys F Contactor is a heavy-duty three-pole power contactor designed for controlling high-current electrical loads in industrial power and motor-control systems. It belongs to the TeSys F contactor family and is intended for applications involving three-phase motor switching and resistive load control.

Contactors are electrically operated switching devices that allow control circuits to switch higher-power electrical loads. When the coil receives the specified control voltage, the contactor operates its main contacts, connecting or disconnecting the load from the power supply. This arrangement enables motors and other electrical equipment to be controlled remotely through PLCs, control relays, push buttons, and industrial automation systems.

The LC1F265R7 features three normally open main poles and an AC-3 rated operational current of 265 A at operating voltages up to 440 V AC. Its AC-1 thermal current rating is 350 A under the specified temperature conditions. The R7 suffix identifies a 440 V AC control coil designed for a frequency range of 40–400 Hz.

At 380–400 V AC, the contactor has a published AC-3 motor power rating of 132 kW. This makes it suitable for appropriately engineered industrial motor-control applications where high switching capacity and reliable electrical operation are required.

The contactor can be incorporated into motor starters, distribution panels, industrial machinery, and automated production systems. It is commonly used with suitable circuit protection, overload relays, control devices, and auxiliary contacts.

The LC1F265R7 has been discontinued by Schneider Electric. Its exact electrical and mechanical characteristics should therefore be checked carefully when sourcing replacement equipment or maintaining an existing installation.

Technical Specifications

Note: Electrical ratings depend on the utilization category, operating voltage, ambient temperature, and installation conditions. The supplied dimensions and weight should be checked against the actual unit and packaging configuration.

Function and Working Principle

The LC1F265R7 operates through an electromagnetic switching mechanism. Its coil creates a magnetic field when energized, causing the contactor’s movable mechanism to change position and operate the main contacts.

1. Electromagnetic Coil Operation

The contactor uses a 440 V AC control coil. When the correct control voltage is applied, the coil generates a magnetic field that attracts the moving armature.

This movement closes the three normally open main contacts, allowing current to flow to the connected electrical load.

When the coil is de-energized, the magnetic force is removed and the mechanism returns to its normal position, opening the main contacts and interrupting the load circuit.

2. Three-Pole Switching

The LC1F265R7 has three main poles designed for three-phase electrical systems.

Each pole switches one phase of the power circuit. When the contactor operates, the three main contacts are mechanically coordinated to connect or disconnect the three-phase load.

This arrangement is commonly used for industrial motors and other three-phase equipment.

3. Motor Starting and Stopping

In a conventional motor starter, the contactor receives a command from a control circuit. When the start command is activated, the coil energizes and the main contacts close, supplying power to the motor.

When a stop command is issued, the coil is de-energized and the contacts open.

The contactor can therefore be used as part of a direct-on-line motor starter or another suitable switching arrangement. Appropriate overload and short-circuit protection must be provided separately.

4. AC-3 and AC-1 Utilization Categories

The LC1F265R7 has different current ratings according to the utilization category.

• AC-3: Intended for switching squirrel-cage motors, including starting and switching off motors while running.
• AC-1: Intended for non-inductive or slightly inductive loads, such as resistive heating loads.

The AC-3 rating is 265 A, while the AC-1 rating is 350 A under the specified conditions. These ratings are not interchangeable. The correct rating must be selected according to the actual load and switching duty.

5. Electrical Arc Interruption

When a contactor opens under load, an electrical arc can form between the separating contacts. The contactor’s internal arc-control arrangement helps manage this switching process.

Correct application selection is important because switching frequency, load characteristics, voltage, and current all affect contact life and operating reliability.

Role in Industrial Control Systems

The LC1F265R7 can serve as a power-switching component within an industrial control architecture. It provides the electrical connection between the incoming power supply and a controlled load while receiving operating commands from a lower-power control circuit.

PLC-Based Motor Control

A PLC can control the contactor through an appropriately rated intermediate relay or control interface. The PLC processes machine conditions and sends commands to start or stop the motor.

Typical control logic may include:

• Motor start and stop sequences.
• Process interlocks.
• Emergency shutdown logic.
• Equipment status monitoring.
• Coordination with overload protection.
• Sequencing between multiple motors.

The PLC does not normally switch the motor’s full load current directly. The contactor performs the power-switching function.

Motor Starter Integration

The contactor can be incorporated into a motor starter together with a suitable overload relay and short-circuit protective device.

The contactor handles normal switching operations, while the overload relay detects sustained motor overcurrent conditions. The upstream protective device provides short-circuit protection according to the starter design.

HMI and Operator Control

An HMI can provide operators with start and stop controls, equipment status, and alarm information through the PLC or another control system.

The LC1F265R7 itself is an electromechanical switching device. It does not provide the programmable logic or display functions of an HMI or PLC.

Industrial Power Distribution

In suitable applications, the contactor can be installed in a power-control cabinet to switch three-phase loads. Its use should be coordinated with the electrical distribution design, protective devices, cable ratings, and applicable installation standards.

Industrial Applications

The LC1F265R7 is intended for industrial switching applications that require a high-current three-pole contactor. Its suitability depends on the load type, operating voltage, switching frequency, and electrical protection arrangement.

1. Industrial Motor Control

Large industrial motors are used in manufacturing equipment, material-handling systems, and process machinery. A suitable contactor can connect and disconnect the motor from the electrical supply as part of a motor starter.

The LC1F265R7’s 265 A AC-3 rating makes it relevant to appropriately sized motor-control applications.

2. Pumping Systems

Industrial pumps are used in water treatment, chemical processing, manufacturing, and utility systems.

A contactor can control the power supply to a pump motor according to pressure switches, level sensors, PLC commands, or other process signals.

The motor’s rated current and starting characteristics must be checked before selecting the contactor.

3. Industrial Fans and Blowers

Large ventilation systems and industrial blowers often use three-phase motors. Contactors can provide electrical switching for these motors as part of a control panel.

The AC-3 rating should be evaluated against the motor’s operating current and starting duty.

4. Compressors and Process Equipment

Industrial compressors and process machines may require reliable motor switching as part of their control and protection systems.

The LC1F265R7 may be considered where its current, voltage, and utilization-category ratings match the motor and application.

5. Manufacturing and Production Lines

Production facilities use contactors to control motors and other electrical equipment across conveyors, material-handling machinery, and auxiliary systems.

When incorporated into a PLC-controlled installation, the contactor can respond to production sequences and equipment interlocks.

6. Resistive Load Switching

The LC1F265R7 also has an AC-1 rating of 350 A under specified conditions. It may therefore be considered for compatible resistive-load switching applications, provided the electrical design follows the appropriate rating and operating requirements.

Installation and System Integration

Correct installation is essential for safe operation, reliable switching, and long service life.

1. Verify the Coil Voltage

The LC1F265R7 uses a 440 V AC coil with a frequency range of 40–400 Hz.

Before installation, confirm that the control circuit supplies the correct voltage and frequency. Applying an incorrect coil voltage can prevent reliable operation or damage the coil.

The coil supply must be checked separately from the main power circuit.

2. Confirm Main Circuit Ratings

Verify that the supply voltage, motor current, load type, and operating duty fall within the contactor’s ratings.

For motor applications, use the AC-3 rating rather than the higher AC-1 thermal current rating. Consider motor starting current and the required switching frequency.

3. Mounting and Cabinet Design

The supplied dimensions are 203 × 201.5 × 213 mm. Confirm these measurements against the manufacturer’s dimensional drawing before preparing the mounting arrangement.

Allow sufficient space for power cables, control wiring, heat dissipation, inspection, and maintenance. The cabinet should provide an appropriate operating environment and protect the contactor from excessive dust, moisture, and contamination.

4. Power and Control Wiring

Connect the three main poles according to the electrical diagram and terminal markings. Use conductors and terminals rated for the intended current and installation conditions.

The coil circuit should be wired independently from the main power circuit according to the control design. Maintain appropriate separation between power and control wiring where required.

5. Overload and Short-Circuit Protection

The contactor is not a substitute for an overload relay or short-circuit protective device.

A complete motor starter should include suitable protection selected according to the motor, cable, contactor, and applicable electrical standards.

The overload relay should be adjusted to the motor’s nameplate data and the intended operating conditions.

6. Commissioning and Functional Testing

After installation, inspect all electrical connections and verify the control voltage before energizing the equipment.

Test the contactor’s pickup and release operation, confirm the correct phase connections, and verify that the motor starts and stops as intended.

Check the operation of overload protection, interlocks, and emergency stop circuits before placing the equipment into normal service.

Compatible System Components

The LC1F265R7 is normally used with additional electrical and automation components in a complete motor-control system.

The listed components are typical parts of an industrial motor-control installation. They are not necessarily included with the contactor.

Alternative Models and Replacement Considerations

Schneider Electric has discontinued the LC1F265R7 and identifies the LC1G265LSEA as its recommended replacement.

Before selecting a replacement, compare:

• AC-3 and AC-1 current ratings.
• Main contact configuration and number of poles.
• Coil voltage and frequency.
• Motor power rating at the actual supply voltage.
• Mounting dimensions and terminal arrangement.
• Auxiliary contact requirements.
• Electrical and mechanical endurance.
• Required protective devices.
• Control-circuit wiring and PLC interface.

A newer contactor may have different dimensions, terminal arrangements, coil characteristics, and accessory requirements. A replacement should be approved only after the complete installation has been reviewed.

Key Advantages

High Current Switching Capability

The 265 A AC-3 rating supports appropriately sized three-phase motor-control applications.

Three-Pole Main Contact Configuration

Three normally open main contacts allow coordinated switching of a three-phase load.

440 V AC Control Coil

The specified coil voltage allows the contactor to operate in control systems designed for a compatible 440 V AC control supply.

Industrial Motor-Control Design

The TeSys F series is designed for demanding industrial switching applications involving motors and resistive loads.

Integration with Automation Systems

The contactor can be controlled through PLC-based systems, relays, push buttons, and other suitable control devices.

Multiple Utilization Categories

Its AC-1 and AC-3 ratings allow engineers to evaluate the contactor for different load types, provided the correct rating is applied.

Technical FAQs

1. What is the Schneider Electric LC1F265R7?

The LC1F265R7 is a TeSys F three-pole power contactor designed for industrial motor control and resistive-load switching.

2. What is the rated AC-3 current?

Its AC-3 rated operational current is 265 A under the specified operating conditions.

3. What is the AC-1 current rating?

The published AC-1 rating is 350 A at an ambient temperature of up to 40°C under the specified conditions.

4. What coil voltage does the LC1F265R7 use?

It uses a 440 V AC control coil with a specified frequency range of 40–400 Hz.

5. How many main poles does this contactor have?

It has three main poles, each normally open, giving it a 3P (3NO) contact configuration.

6. What motor power can it control?

The published AC-3 motor power rating is 132 kW at 380–400 V AC. Actual suitability depends on motor characteristics, operating conditions, and the applicable standards.

7. Can the LC1F265R7 be controlled by a PLC?

Yes. A PLC can control the contactor through a suitable interface designed for the 440 V AC coil circuit. The PLC output must not be connected directly unless its electrical rating and switching arrangement are appropriate.

8. Does the contactor provide motor overload protection?

No. A suitable overload relay or motor-protection device must be installed as part of the motor starter.

9. Is the LC1F265R7 still available from Schneider Electric?

Schneider Electric has discontinued this reference. Availability may remain through surplus or industrial spare-parts suppliers, but buyers should verify the unit’s condition and authenticity.

10. What is the recommended replacement for the LC1F265R7?

Schneider Electric identifies the LC1G265LSEA as the recommended replacement. Confirm the electrical ratings, coil requirements, accessories, and mounting arrangement before substitution.

Procurement and Maintenance Recommendations

When purchasing the LC1F265R7, verify the complete model number and the R7 coil suffix. The coil voltage is particularly important because contactors in the same product family may use different control voltages.

For used or surplus units, request clear photographs of the nameplate, coil, main terminals, and contact surfaces. Check for signs of overheating, damaged insulation, corrosion, mechanical wear, or abnormal contact movement.

Confirm whether auxiliary contacts and other accessories are included. The base contactor should not be assumed to include every accessory needed for a complete motor starter.

For maintenance, inspect the main contacts, coil circuit, terminal connections, and mechanical operating mechanism according to the manufacturer’s instructions. Check for discoloration, loose connections, abnormal noise, and excessive contact wear.

Before replacing an existing unit, review the motor’s rated current, supply voltage, coil-control voltage, protection arrangement, and wiring diagram. If a newer TeSys Giga contactor is selected, assess whether modifications to the mounting, terminals, or control circuit will be necessary.

Conclusion

The Schneider Electric LC1F265R7 TeSys F Contactor is a three-pole industrial power contactor with a 265 A AC-3 rating, a 350 A AC-1 rating, and a 440 V AC control coil. It is designed for high-current motor switching and compatible resistive-load applications in industrial electrical systems.

Its three normally open main contacts support three-phase switching, while its electromagnetic operating mechanism allows remote control through suitable industrial control circuits.

Although the LC1F265R7 has been discontinued, it remains relevant to maintenance and replacement projects involving existing TeSys F installations. Accurate model identification, coil-voltage verification, and careful assessment of replacement compatibility are essential when sourcing this contactor.