TeSys D power contactor AC3 18A 4P 1NO 1NC 24VDC coil low consumption LC1D18BL

Power contactor for demanding applications

This three-pole TeSys D power contactor, with a rated current of 18A, is designed for reliable motor control in a wide range of applications. Equipped with a 24V DC coil with low power consumption, it is ideal for installations where energy efficiency and minimizing losses are important. The contactor's construction provides high mechanical and electrical strength, guaranteeing a long service life even in heavily used systems.

Construction and application

The LC1D18BL contactor has screw connections for the main contacts, which simplifies installation and ensures a secure connection of the wires. Built-in auxiliary contacts – one normally open (1NO) and one normally closed (1NC) – increase the functionality of the device, allowing integration with various control and protection circuits. It is a versatile solution for both professional installers and end-users looking for a reliable element for motor control. It will work in industrial plants, public buildings and in applications requiring frequent switching of the load.

Key features and benefits

• High efficiency: 24V DC coil with low power consumption minimizes energy consumption, which translates to lower operating costs.
• Durability and reliability: Mechanical endurance of 15 million switching cycles and high switching frequency (up to 3600 cycles/hour) guarantee long-term and trouble-free operation.
• Versatility: Rated operating power for AC-3 is 7.5 kW at 400V, and for AC-4 – 4 kW, allowing the contactor to be used in various motor configurations.
• Safety: It has certificates of compliance with many standards (IEC, UL, CSA, CCC, EAC, Marine), ensuring safe use and compliance with applicable regulations.
• Compact dimensions: A width of only 45 mm makes it easy to install in tight spaces and allows for optimal use of space in control cabinets.
• Optimized auxiliary contacts: Built-in auxiliary contacts (1NO+1NC) in a mirrored configuration allow direct use of the contactor in safety circuits in accordance with IEC standards.
• Universal connections: Screw connection of the main contacts ensures easy and secure installation of wires of various thicknesses.
• AC-1 rated current: The ability to operate at a rated current of 32A for AC-1 expands the range of applications for the contactor.

The TeSys D LC1D18BL contactor is characterized by a rated operating current for AC-4 of 9A at 400V and a rated operating power for AC-3 equal to 7.5 kW at the same voltage. Its height is 77 mm, depth 95 mm and width 45 mm. The rated operating current Ie for AC-3 at 400V is 18 A, and the rated control voltage Us for DC is a range from 24 to 24 V.

The TeSys D LC1D18BL contactor is a solid and reliable solution for motor control that will meet the expectations of even the most demanding users. Its compact dimensions, high efficiency and compliance with applicable standards make it an ideal choice for both new installations and modernization of existing systems.