The Siemens 3TX4422-0A is a high-quality auxiliary switch block designed to complement contactor relays in a variety of industrial applications. This component is part of the esteemed SIRIUS series and is engineered to facilitate the reliable operation of machinery and electrical systems. With a robust construction that ensures durability, the 3TX4422-0A features a screw terminal connection system for secure and straightforward installation.
This auxiliary switch block is rated for an insulation voltage of 690 V and can handle an operating current of up to 10 A at AC-12 (24 V and 230 V). It is equipped with 2 normally open (NO) and 2 normally closed (NC) contacts, providing versatility in its application across different control circuits. The product is designed to operate within an ambient temperature range of -25 to +55 °C, ensuring consistent performance even in demanding environments.
With a compact footprint measuring 45 x 25 x 24 mm, the 3TX4422-0A is designed for snap-on mounting, making it easy to integrate into existing setups without the need for extensive modifications. The switch block's mechanical service life is rated at a typical 10 million switching cycles, highlighting its longevity and reliability.
Safety is a key consideration in the design of the 3TX4422-0A, which includes positively driven operation according to IEC 60947-5-1 standards. This feature ensures that the auxiliary contacts will operate in a fail-safe manner, providing an additional layer of protection for both the system and the operator.
The Siemens 3TX4422-0A auxiliary switch block is a testament to the brand's commitment to quality and reliability, making it a valuable component for enhancing the functionality and safety of industrial control systems.