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Siemens Bloco contacto auxiliar 1NC montagem frontal DIN EN 50005 3RH1921-1CA01 is a high-quality front-mounted auxiliary contact block designed for reliable signaling, control, and interlocking functions in Siemens SIRIUS contactor systems. Manufactured by Siemens under the 3RH19 series, this accessory provides a single normally closed (1NC) auxiliary contact for expanding control circuits in industrial automation applications. It is widely used in motor control centers (MCC), switchgear assemblies, and automation panels where dependable switching feedback, compact modular design, and standardized DIN installation are required. Its snap-on front mounting system ensures quick installation, secure electrical connection, and long-term operational reliability in demanding industrial environments.
Key Features:
Front-mounted auxiliary contact block for Siemens SIRIUS contactors and relays
Provides 1 NC auxiliary contact for control and signaling functions
DIN EN 50005 standardized design for safe and compatible installation
Compact snap-on modular construction for easy mounting and replacement
High reliability for industrial automation and motor control applications
Siemens engineering ensures long service life and stable switching performance
Specifications:
Product Name: Siemens Bloco contacto auxiliar 1NC montagem frontal DIN EN 50005 3RH1921-1CA01
Part Number: 3RH1921-1CA01
Product Type: Auxiliary contact block
Series: Siemens SIRIUS 3RH19
Contact Configuration: 1 NC (normally closed)
Mounting Type: Front mounting (snap-on)
Connection Standard: DIN EN 50005
Application: Motor control centers, industrial automation, control panels, signaling and interlocking circuits
Compatibility: Siemens S00 size contactors and control relays
Electrical Use: Low-voltage auxiliary switching systems
Brand: Siemens
The Siemens 3RH1921-1CA01 auxiliary contact block delivers reliable switching performance, efficient control circuit expansion, and long-term durability for industrial applications. Built with Siemens’ trusted engineering excellence, it ensures safe operation, consistent signaling, and dependable performance in modern automation systems. For genuine Siemens industrial automation components, contact Ram Automations at info@ramautomations.com for reliable supply and support.
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
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