Schneider LC1D Series Contactor

The Schneider Electric TeSys D LC1D Contactor series is designed for motor control and electrical switching in low-voltage industrial systems. Covering AC-3 rated operational currents from 9 A to 150 A, the series offers multiple contactor ratings, coil voltage options and switching configurations to accommodate different motor and load requirements. Featuring reliable electromagnetic operation, integrated auxiliary contacts on standard configurations and compatibility with thermal overload relays, TeSys D LC1D contactors provide flexible solutions for motor starting, stopping and general industrial power control.

Motor Control and Switching Performance

The TeSys D LC1D series is designed for switching three-phase motors and controlling resistive electrical loads. It supports different utilization categories to accommodate various operating conditions:

• AC-1: Switching non-inductive or slightly inductive loads, including resistive heating equipment.

• AC-3: Starting squirrel-cage motors and switching them off during normal running conditions.

• AC-4: More demanding motor operations, including inching, plugging and frequent reversing, where supported by the selected model.

The electromagnetic operating mechanism provides reliable contact opening and closing in response to control circuit signals, making the series suitable for motor control circuits and industrial automation systems.

Flexible Coil Voltage and Control Options

The LC1D series offers multiple AC and DC coil voltage options to match different control circuit requirements. Depending on the selected model, available coil configurations include standard AC coils, standard DC coils and low-consumption electronic coil versions. These options allow integration with different control power supplies, PLC systems and industrial control panels.

Selected models also feature wide-range electronic coils, supporting flexible control voltage requirements. Coil voltage and control circuit specifications should be matched to the actual electrical installation.

Compact Design and Auxiliary Contact Functions

Designed for integration into industrial electrical control panels, the TeSys D contactor features a compact electromagnetic structure and clearly arranged power and control terminals. Standard configurations commonly include 1 NO and 1 NC auxiliary contacts for electrical interlocking, control circuit feedback and contactor status indication.

Additional auxiliary contact blocks, mechanical interlocks and coil suppression modules are available for selected models. These accessories provide greater flexibility for reversing motor starters, sequential control circuits and other industrial switching arrangements.

Integration with Motor Protection Systems

The TeSys D LC1D series can be combined with compatible TeSys thermal overload relays to form direct-on-line motor starter assemblies. The contactor performs motor switching, while the overload relay provides protection against sustained motor overload conditions and phase-related faults, depending on the selected relay.

Compatible circuit breakers or fuses can also be incorporated to provide short-circuit protection. This combination supports coordinated motor control and protection in industrial electrical installations.

Industrial Applications

The TeSys D LC1D Contactor series is suitable for motor switching and electrical control across a wide range of industrial applications. Typical uses include:

• Industrial Motor Control: Starting and stopping three-phase motors in manufacturing equipment.

• Pumping Systems: Switching industrial water pumps, circulation pumps and process pumping equipment.

• HVAC Systems: Controlling compressors, ventilation fans and air conditioning equipment.

• Conveyor Systems: Motor switching for material handling and production line equipment.

• Heating Equipment: Switching resistive heating loads and industrial thermal equipment.

• Process Machinery: Electrical control of motors in packaging, processing and automated production systems.

Model Selection and Technical Specifications

The TeSys D LC1D series covers multiple contactor ratings to accommodate different motor power and electrical switching requirements.

• Model Range: LC1D09, LC1D12, LC1D18, LC1D25, LC1D32, LC1D38, LC1D40, LC1D50, LC1D65, LC1D80, LC1D95, LC1D115 and LC1D150.

• Rated Operational Current: 9–150 A under AC-3 utilization, depending on the selected model.

• Utilization Categories: AC-1, AC-3, AC-3e and AC-4, depending on the product reference.

• Pole Configuration: Primarily 3-pole (3P) configurations, with additional TeSys D family variants available.

• Rated Operational Voltage: Up to 690 V AC for many standard models, with higher-voltage ratings available for selected references.

• Coil Voltage: Multiple AC and DC control voltage options.

• Auxiliary Contacts: Integrated auxiliary contacts on standard configurations, with additional contact blocks available.

• Installation: DIN-rail or panel mounting, depending on contactor size and model.

• Compatible Accessories: Auxiliary contact blocks, mechanical interlocks, coil suppressors and compatible thermal overload relays.