Siemens 3RH2921-2DA11 Lateral Auxiliary Switch, 1 NO + 1 NC, Spring-Loaded Terminals for 3RT2/3RH2 Contactors Original Brand New

Overview

The Siemens 3RH2921-2DA11 is a high-performance lateral auxiliary switch designed to enhance the functionality of Siemens 3RT2 contactors and 3RH2 contactor relays. This essential component provides additional switching contacts, allowing for greater flexibility and control in your industrial applications. With its user-friendly, lateral mounting design, installation is quick and effortless. The 3RH2921-2DA11 features a robust construction and reliable spring-loaded terminals, ensuring a secure and maintenance-free connection for optimal operational integrity.

Key Benefit

• Enhanced System Control: Adds crucial switching contacts (1 Normally Open and 1 Normally Closed) to your contactors, enabling more complex control circuits and interlocks.
• Space-Saving Design: The lateral mounting configuration allows for efficient use of panel space, making it ideal for compact electrical enclosures.
• Quick & Secure Installation: Spring-loaded terminals eliminate the need for screw tightening, reducing installation time and providing a vibration-proof, long-lasting connection.
• High Reliability: Engineered to Siemens’ rigorous quality standards, this auxiliary switch delivers consistent and dependable performance in demanding industrial environments.
• Seamless Integration: Specifically designed for a perfect fit with Siemens SIRIUS 3RT2 power contactors and 3RH2 contactor relays, ensuring full compatibility and easy integration.

Technical Specifications & Function

• Product Number: Siemens 3RH2921-2DA11
• Type: Auxiliary Switch
• Mounting: Lateral (Side-mounted)
• Number of Contacts: 1 NO (Normally Open) + 1 NC (Normally Closed)
• Terminal Type: Spring-loaded terminals
• Current Path:
  • 1 NC contact
  • 1 NO contact
• Connection Labels:
  • On the left: 51/52 (NC) and 63/64 (NO)
  • On the right: 31/32 (NC) and 43/44 (NO)
• Compatibility: Designed for use with Siemens 3RT2 series contactors and 3RH2 series contactor relays.

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