Siemens 3RH2911-1MA20 Auxiliary Switch Front Mount, 2 NO Contacts, Screw Terminals Original Brand New

Overview

The Siemens 3RH2911-1MA20 is a high-quality, front-mountable auxiliary switch designed to expand the contact configuration of Siemens 3RT2 power contactors and 3RH2 contactor relays. This essential component provides an additional two normally open (NO) contacts, enabling greater flexibility and control in industrial automation and control systems. Its compact design and easy-to-use screw terminals make it simple to integrate into existing setups.

Key Features

• Front-Mount Design: Mounts directly on the front of compatible contactors, saving panel space and simplifying installation.
• 2 Normally Open (NO) Contacts: Provides two additional signal contacts with terminal designations 73/74 and 83/84 for expanded control functionality.
• Current Path: The current path is configured as 1 NO and 1 NO, offering a standard and reliable electrical connection.
• Cable Entry from Below: Designed for convenient and tidy cable management, with the cable entry positioned at the bottom.
• Screw Terminals: Ensures a secure and reliable connection for wiring, suitable for a wide range of applications.
• Compatibility: Specifically designed for seamless integration with Siemens 3RT2 contactors and 3RH2 contactor relays.

Benefit

• Enhanced Functionality: Adds two critical NO contacts to your contactor, allowing for more complex control circuits and signaling.
• Space-Saving: The front-mount design avoids the need for additional DIN rail space.
• Easy Installation: Simple screw terminal connections and a clear mounting process make installation quick and efficient.
• Reliable Performance: Manufactured by Siemens, a leader in industrial automation, ensuring high quality and long-term reliability.
• Versatile Application: Ideal for use in a variety of industrial control panels, motor control centers, and machinery.

Function

The Siemens 3RH2911-1MA20 auxiliary switch works in tandem with the main contactor. When the main contactor coil is energized and the main contacts close, the auxiliary contacts on the 3RH2911-1MA20 also change state. The two normally open (NO) contacts will close, providing a signal that can be used for control circuit logic, signaling, interlocking, or other automation tasks.

Technical Specification

• Product Type: Auxiliary Switch
• Mounting Position: Front
• Number of Contacts: 2 NO (Normally Open)
• Terminal Designations: 73/74, 83/84
• Current Path: 1 NO, 1 NO
• Termination Type: Screw Terminals
• Cable Entry: From below
• Compatibility: Siemens 3RT2 Contactors, Siemens 3RH2 Contactor Relays
• Product Number: 3RH2911-1MA20

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