Miniature auxiliary contactor, TeSys K, 3NO 1NC, 24VDC coil, screw terminals CA3KN31BD3

Auxiliary contactor – reliable load control

This miniature TeSys K auxiliary contactor is a key component in control systems, designed for reliable operation with AC-15 and DC-13 electromagnetic loads. Equipped with three normally open (NO) and one normally closed (NC) contacts, it provides flexibility in control circuit configuration. Coil voltage of 24V DC guarantees compatibility with a wide range of control systems.

Construction and application

The contactor is designed for mounting on a 35 mm DIN rail or by screws, making it easy to integrate with existing infrastructure. Screw terminals provide secure and durable wire connections. Compact dimensions (width 45 mm, height 58 mm, depth 68 mm) allow for installation in limited space. Rated current of 10A at 400V and the ability to operate at up to 690V DC make the contactor a universal solution for many applications.

Key features and benefits

• Versatility: The combination of 3NO + 1NC contacts enables the implementation of various control functions.
• Reliability: Designed to operate in a wide range of ambient temperatures (-25°C to +50°C) and at high switching frequency (up to 180 cycles/min).
• Safety: Compliance with many standards (IEC, UL, CSA, CCC, EAC) and the Green Premium certificate (RoHS/REACh) confirm a high safety standard and care for the environment.
• Easy installation: The possibility of mounting on a DIN rail or by screws simplifies installation and reduces the time required to start up the system.
• Durability: Solid construction and high-quality materials ensure a long service life of the device.
• Circuit optimization: The coil powered by 24V DC minimizes inrush current, which translates into efficient operation of the control system.
• Practical connections: Screw connection provides a solid and reliable connection of auxiliary wires.

This contactor is an ideal choice for both professional installers and end-users looking for a reliable and efficient solution for controlling electromagnetic loads. Its compact size, ease of installation and compliance with applicable standards make it an excellent element of any automation system.