TeSys CA3K Auxiliary Contactor 3NO+1NC 24VDC

The TeSys CA3KN31BD auxiliary contactor by Schneider Electric, reference CA3KN31BD, is a reliable and versatile solution for controlling electromagnetic circuits in industrial and commercial applications. With a contact configuration of 3 normally open (NO) and 1 normally closed (NC), this contactor allows efficient switching in AC-15 and DC-13 control circuits, with a nominal thermal current of up to 10A. Its compact design of 45 mm width facilitates integration into electrical panels, optimising the available space.

The CA3KN31BD is suitable for load control in applications requiring high switching frequency, supporting up to 10,000 cycles per hour and a mechanical durability of 20 million cycles. The control coil operates at 24V DC, offering stable operation without inrush current consumption. Additionally, the device can withstand voltages up to 690V and provides excellent resistance to voltage spikes, with an insulation capacity of 690V according to IEC 60947.

The contactor's installation is flexible, as it can be mounted on a 35 mm DIN rail or fixed with screws on a plate, facilitating its use in various electrical system configurations. The screw connection terminals allow the connection of solid or flexible cables of different sections, with a tightening torque of 1.3 N·m, ensuring a secure and reliable connection.

Technical Features:

• Contact configuration: 3 normally open (NO) + 1 normally closed (NC).
• Nominal thermal current (Ith): 10A at 50°C.
• Control voltage: 24V DC, suitable for direct current applications.
• Utilisation category: AC-15 (electromagnetic loads) and DC-13.
• Nominal insulation voltage (Ui): 690V, capable of withstanding voltage peaks of 4kV.
• Mounting: On 35 mm DIN rail or screwed onto a plate.
• Terminal connection: Compatible with solid and flexible cables of different sections (0.34 mm² to 4 mm²).
• Mechanical durability: 20 million cycles, ideal for high switching frequency applications.
• Dimensions: 58 mm high, 45 mm wide, 57 mm deep.
• Weight: 0.225 kg, compact and easy to install.

Product Advantages:

• High durability and reliability: Designed to withstand up to 20 million mechanical cycles, ensuring a long service life in demanding applications.
• Versatility in installation: Can be mounted on a DIN rail or fixed onto a plate, adapting to different electrical system configurations.
• International certifications: Complies with IEC, UL, CSA, CCC, and EAC standards, ensuring its use in global applications and meeting the highest quality standards.
• Compatible with different types of connections: Screw terminals allow the use of both solid and flexible cables, providing a safe and easy installation.

Recommended Applications:

The TeSys CA3KN31BD auxiliary contactor is ideal for industrial applications, including process automation, motor control, heating, ventilation, and air conditioning (HVAC) systems, and other applications requiring reliable control of electromagnetic loads. It is suitable for control circuits operating in both alternating current and direct current, making it a versatile option for various types of installations.

Regulatory Compliance:

The contactor complies with IEC/EN 60947-1, IEC/EN 60947-4-1, UL, CSA, and other international certifications, ensuring safety and reliability in its use. Additionally, it is a Green Premium product that complies with RoHS and REACh directives, ensuring its commitment to the environment.

With the TeSys CA3KN31BD from Schneider Electric, you get a compact, robust, and efficient solution to meet control needs in industrial applications, backed by the quality and reliability of a leader in the electrical sector.