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Siemens SIRIUS 3RH2911-2HA02 Front-Mounted Auxiliary Switch Block with 2 NC Contacts and Spring Terminals Original Brand New

$6.38

Siemens 3RH2911-2HA02 auxiliary switch, on the front, 2 NC, .1/.2, .1/.2, –/–, –/–, current path: 1 NC, 1 NC, –, –, spring-loaded terminal, for contactors 3RT2 and contactor relays 3RH2

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Overview: Siemens 3RH2911-2HA02 Front-Mounted Auxiliary Switch

The Siemens 3RH2911-2HA02 is a high-quality, front-mountable auxiliary switch block from the SIRIUS modular system, designed to easily expand the number of auxiliary contacts for control circuit functions. This specific model features a 2 Normally Closed (NC) contact configuration and utilizes robust spring-loaded terminals for fast, reliable, and vibration-proof wiring without the need for tools. It is an essential accessory for extending the functionality of SIRIUS 3RT2 power contactors and 3RH2 contactor relays.

Key Benefit

  • Rapid Installation: Easy, tool-free snap-on mounting to the front of compatible contactors and contactor relays, minimizing installation time.
  • Reliable Connection: Spring-loaded terminals ensure a permanent, gas-tight, and vibration-resistant connection, crucial for industrial applications.
  • SIRIUS System Integration: Seamlessly integrates with the Siemens SIRIUS modular system for consistent quality and simplified spare part management.
  • Compact Design: Provides 2 additional control contacts without significantly increasing the overall device footprint.
  • Safety Features: Designed to function as both a positively driven operation contact (for 3RH2) and a mirror contact (for 3RT2), supporting critical safety and control applications.

Application

The Siemens 3RH2911-2HA02 auxiliary switch is typically used in industrial control circuits to:

  1. Signal Status: Provide feedback to PLCs, control systems, or indicator lights about the current state (Open/Closed) of the main contactor or relay.
  2. Interlocking: Implement electrical interlocking circuits to ensure sequence control or prevent simultaneous operation of conflicting components.
  3. Circuit Expansion: Expand the number of normally closed (NC) contacts on a core device without adding another full relay.
  4. Safety Circuits: Used as a mirror contact in conjunction with 3RT2 contactors for feedback in safety-related applications.

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Weight 0.05 kg
Dimensions 58 × 57 × 47 mm

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Siemens SIRIUS 3RH2911-2HA02 Front-Mounted Auxiliary Switch Block with 2 NC Contacts and Spring TerminalsSiemens SIRIUS 3RH2911-2HA02 Front-Mounted Auxiliary Switch Block with 2 NC Contacts and Spring Terminals Original Brand New
$6.38
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