TeSys D power contactor AC3 18A 3P 1NO 1NC 24VDC coil LC1D183BD

TeSys D power contactor – reliable motor control

This three-pole power contactor from the TeSys D series is a robust solution for controlling motors with a rated current of up to 18A in AC-3 circuits. Designed for reliability and durability, it is perfect for both industrial and commercial installations. Equipped with a 24V DC coil, it offers precise and efficient control.

Design and application

The LC1D183BD contactor is designed for use with motors up to 7.5 kW at 400V AC. Its design based on spring-loaded terminals ensures quick and secure cable connection, minimizing downtime during installation and maintenance. Built-in auxiliary contacts – 1NO (normally open) and 1NC (normally closed) – increase the functionality of the contactor, enabling the implementation of complex control and protection circuits. The wide range of applications includes, among others, drive control, heating, ventilation and air conditioning systems, and various types of industrial machines and equipment.

Key features and benefits

• High efficiency: Rated operating current of 18A for AC-3 at 400V allows for efficient control of motors with significant power.

• Versatility: Can be used in various industrial and commercial applications thanks to compliance with many standards (IEC, UL, CSA, CCC, EAC, Marine).

• Safety: Built-in mirrored NC auxiliary contacts increase the safety of control circuits.

• Easy installation: Spring-loaded terminals ensure quick and secure cable connection without the need for tools.

• Durability: Mechanical endurance of 15 million switching cycles guarantees long-lasting and reliable operation of the device.

• Compact dimensions: Width of only 45 mm makes it easy to install in tight spaces.

• Sustainable development: Green Premium compliance (RoHS/REACh) confirms care for the natural environment.

• Low coil power consumption: The 24V DC coil is characterized by low current consumption, which translates into energy savings.

Operating parameters

The LC1D183BD contactor is designed to operate in a wide temperature range (up to 60°C) and with a switching frequency of up to 3600 cycles per hour. The rated power for AC-4 at 400V is 4 kW, and the rated current for AC-1 at the same voltage is 32 A. These parameters guarantee reliable operation even in demanding operating conditions. Additionally, the contactor is adapted for mounting on a DIN rail or screw mounting, providing installation flexibility.