Diode module for coil surge protection 24V LAD4TBDL

Diode module for contactor coil protection

This diode module, designed to work with TeSys Deca contactors (LC1D09-D38, LC1DT20-DT40) and CAD control relays, provides effective protection against overvoltages in the control circuit. Its function is to suppress voltage peaks, limiting them to a maximum of 2 Uc, which extends the life of components and minimizes the risk of damage. Mounting is done in a side, snap-in manner – this does not affect the dimensions of the contactor.

Functionality and application

The LAD4TBDL module is a component dedicated to circuits powered by 24V DC. It acts as a protective diode, protecting contactor coils from the negative effects of induced voltages during switching off. This is particularly important in applications where frequent switching of inductive loads occurs – e.g. motors. Using this module translates to increased installation reliability and fewer failures.

Features and benefits

• Bidirectional protection: The module protects against overvoltages regardless of polarity.
• Easy installation: The snap-in mounting method simplifies installation and servicing.
• No impact on dimensions: The module does not change the overall dimensions of the contactor, making it easier to replace and modernize existing installations.
• Compliance with standards: The product meets Green Premium (RoHS/REACH) requirements, guaranteeing its environmental friendliness and compliance with applicable regulations.
• Voltage limitation: Limits the transient voltage to 2 Uc max., providing optimal protection for electronic components.
• Operating voltage: Designed to operate in circuits with a voltage of 24V DC, making it an ideal solution for a wide range of industrial applications.
• No LED indicator: The lack of an LED indicator simplifies the design and minimizes potential interference with the control system operation.