Auxiliary contact for PB400 PS-485 relay 412430

Auxiliary contact for modular contactors – reliable signaling and control

This auxiliary contact, catalog number 412430, is a key element extending the functionality of Legrand SM 400 series modular contactors. It is used to signal the circuit status or control additional devices, providing greater control and safety in the electrical installation. Its compact size and easy installation make it ideal for both professional installers and end-users looking for a reliable solution.

Functionality and application

The PS 485 auxiliary contact has one normally open (1NO) and one normally closed (1NC) contact, allowing for the implementation of various signaling and control functions. It can be used in control circuits, alarm systems, and to monitor the operating status of devices. Designed for mounting on the left side of the contactor, it offers flexibility in installation configuration. The rated switching current of 5A at 250V AC ensures compatibility with a wide range of loads.

Construction and parameters

The auxiliary contact is characterized by a solid construction and high quality workmanship, guaranteeing long-lasting and trouble-free operation. Its width, only 0.5 module (17.5mm), allows for optimal use of space in the distribution board. Designed to work with contactors with a maximum main contact current of 25A, it offers versatility of application. It is worth noting the lack of a differential current self-test – this is a standard feature of this type of auxiliary contact. The design allows for the installation of up to four auxiliary contacts on one main contactor, increasing the possibilities of expanding the control system.