TeSys D power contactor AC3 38A 3P 1NO 1NC 220VAC coil screw terminals LC1D38M7

TeSys D power contactor – reliable control of electrical circuits

The LC1D38M7 power contactor from Schneider Electric is designed for frequent switching of electrical circuits, especially those with motors. Designed for demanding industrial and construction applications, it provides reliable operation and long service life. This is a device from the TeSys D series, known for its high quality and wide range of accessories.

Construction and application

This contactor is three-pole (3P) and designed to operate at 220V AC (50/60Hz). The rated current of 38A in category AC-3 allows controlling motors with a power of up to 18.5 kW at 400V. It also has auxiliary contacts – one normally open (1NO) and one normally closed (1NC) – which enable the implementation of control and signaling circuits. The application of the LC1D38M7 contactor includes, among others, controlling electric motors, heating, ventilation, air conditioning systems and various types of industrial equipment. The possibility of mounting on a DIN rail or panel facilitates integration with existing installations.

Key features and benefits

• High reliability: The contactor's construction based on proven solutions guarantees a long mechanical (15 million cycles) and electrical life.
• Versatility: Possibility of use in a wide range of industrial and construction applications, thanks to high operating parameters.
• Safety: Compliance with IEC 60947-1, 60947-4-1 and VDE 0660 standards ensures safe operation of the device. In addition, TeSys Deca contactors are characterized by increased resistance to fire and dust (compliance with IEC60335-1 standard).
• Easy installation: Screw main terminals facilitate connection of wires, and the possibility of mounting on a DIN rail or panel simplifies integration with existing infrastructure.
• Wide range of accessories: Availability of additional auxiliary contacts and overload relays allows you to adapt the contactor to specific application needs.
• Convenient identification: The short catalog number contains information about the rated current in category AC-3, which makes it easier to select the appropriate model.
• Digital documentation: Access to technical documentation by scanning the QR code facilitates servicing and troubleshooting.

Technical parameters in practice

The LC1D38M7 contactor is adapted to work at temperatures from -25°C to 55°C, which makes it suitable for use in various environmental conditions. The rated power for AC-4 at 400V is 7.5 kW, which allows controlling loads requiring higher starting power. The integrated NO+NC auxiliary contacts are adapted to signals with a minimum current of 1 mA, which allows direct connection to PLC controllers without the need for additional intermediate relays. The operating voltage for AC is 440…440V for both 50Hz and 60Hz frequencies, which increases its versatility in different power systems.