TeSys 1NO1NC auxiliary contact block with leading time 0.1-30s, screw terminals LADT2

Auxiliary contact block with time delay – reliable process control

The LADT2 auxiliary contact block is an element that expands the functionality of TeSys Deca contactors, providing a delayed closing of the circuit. This solution allows you to implement control sequences requiring precise on-time, for example in industrial applications, HVAC systems or building automation. It is an ideal solution for installers and users looking for a reliable and flexible element for controlling loads.

Functionality and application

The LADT2 block works with LC1D and LC1F contactors and CAD control relays, offering 1NO (normally open) and 1NC (normally closed) contacts with a current rating of up to 10A at 690V AC. It allows you to set the on-delay in the range of 1 to 30 seconds, allowing you to adapt the operation to the specific needs of the application. Screw terminals provide secure and durable wire connections.

Advantages and benefits

• Versatility: Compatible with a wide range of TeSys Deca contactors, making it easy to integrate with existing installations.
• Precision: Adjustable on-delay range (1-30s) allows for precise adaptation to application requirements.
• Reliability: Front snap-on mounting guarantees a stable connection and long-term operation.
• Safety: Has compliance certificates with many standards (IEC, UL, CSA, CCC, EAC), ensuring safe use.
• Ecology: The product meets Green Premium requirements (RoHs/Reach), confirming its compliance with environmental regulations.
• High durability: Designed for frequent switching – even once per second – and withstands up to 1.5 million switching cycles.
• Simplified mounting: Built-in mirror contacts allow for flexible use in various circuit configurations.
• Accessory standardization: The same additional accessories are compatible with contactors of different power (from 9A to 150A), which simplifies storage and servicing.

It is also worth mentioning the possibility of using the LADT2 block in applications requiring sequential start-up of devices or delayed switching of the load to avoid overvoltages or overloads. This solution can increase the efficiency and safety of the electrical installation.