Overview: Reliable Auxiliary Switching for Industrial Control
The Siemens 3RH2911-2HA01 is a high-quality auxiliary switch block designed for front mounting onto SIRIUS 3RT2 power contactors and 3RH2 contactor relays. As an essential component in industrial control systems, this switch block expands the contactor’s capabilities by providing an additional, reliable 1 NC (Normally Closed) contact. Utilizing modern spring-loaded terminal technology, it ensures fast, secure, and vibration-proof wiring, significantly reducing installation time and increasing operational reliability.
Key Benefit
- Enhanced Control Functionality: Adds a crucial 1 NC auxiliary contact for feedback, interlocking, or control circuit expansion.
- Rapid, Secure Wiring: Spring-loaded terminals allow for quick, tool-free wiring after stripping the wire, ensuring a consistently secure connection.
- High Compatibility: Specifically designed for seamless integration with the widely used Siemens SIRIUS 3RT2 contactors and 3RH2 contactor relays.
- Space-Saving Design: Front-mounting configuration saves valuable DIN rail space compared to side-mounted alternatives.
- Increased Reliability: Ensures a durable and vibration-resistant electrical connection, crucial for long-term industrial operation.
Functions & Features
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Front-mounted auxiliary switch
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Single NC (normally closed) contact
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Current path: 1 NC
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Spring-loaded terminal for secure connections
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Designed for use with Siemens 3RT2 contactors and 3RH2 contactor relays
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High reliability for industrial automation and control systems
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