Siemens 3RH2911-2HA30 Auxiliary Switch, 3 NO, Front Mount, Spring Terminal Original Brand New

Overview

The Siemens SIRIUS 3RH2911-2HA30 Auxiliary Switch Block is a high-performance, front-mounted accessory designed to easily expand the control capabilities of SIRIUS 3RT2 Power Contactors and 3RH2 Contactor Relays. Featuring three (3) Normally Open (3 NO) instantaneous contacts and reliable spring-loaded terminals for fast, secure, and vibration-proof wiring, this unit is essential for complex control circuits in industrial automation and control systems. Its snap-on design ensures tool-free installation, maintaining high efficiency in panel building and maintenance.

Technical Specifications / Key Functions

• Product Type: Instantaneous Auxiliary Switch Block
• Manufacturer Part Number: 3RH2911-2HA30
• Brand: Siemens SIRIUS
• Mounting: Front Snap-On mounting (Tool-free)
• Contact Configuration: 3 NO (Normally Open) Contacts
  • Terminal Identification: .3/.4, .3/.4, .3/.4
  • Current Path: 1 NO, 1 NO, 1 NO
• Terminal Type: Spring-loaded terminal (Spring-type terminal, Spring clamp connection)
• Compatibility: Designed for Siemens 3RT2 Contactors and 3RH2 Contactor Relays (Sizes S00, S0, S2, S3)
• Rated Insulation Voltage (Ui): 690 V AC (Pollution degree 3)
• Rated Surge Voltage (Uimp): 6 kV
• Operational Current (AC-15 at 230V): 6 A
• Protection Class: IP20 on the front
• Mechanical Life: Typical 10,000,000 operating cycles

Benefits & Features

• Expanded Control: Instantly adds three (3) critical Normally Open auxiliary contacts for enhanced signaling, interlocking, and monitoring functions in your control circuits.
• Quick Installation: Front, snap-on mounting allows for extremely fast, tool-free assembly onto compatible contactors and contactor relays, minimizing downtime.
• Vibration-Proof Connection: Spring-loaded terminals offer a secure, maintenance-free, and reliable electrical connection, ideal for environments with mechanical vibration.
• SIRIUS Modular System: Seamless integration with the widely used Siemens SIRIUS family of industrial control gear (3RT2/3RH2 series).
• High Reliability: Built with Siemens quality for a long mechanical life and consistent electrical performance in AC-15 and DC-12 applications.

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