Overview
The Siemens 3RH2911-1HA31 Auxiliary Switch is a high-quality front-mounted accessory designed for use with Siemens 3RT2 contactors and 3RH2 contactor relays. Engineered for reliability and precision, this auxiliary switch offers 3 Normally Open (3NO) and 1 Normally Closed (1NC) contacts with screw terminals, ensuring dependable control and signaling in electrical circuits.
This model provides a robust and compact solution for expanding contactor functionality in industrial automation, motor control centers, and electrical panels.
Key Features & Function
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Configuration: 3 Normally Open (3NO) + 1 Normally Closed (1NC) contacts
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Mounting Type: Front-mounted for easy installation and compact design
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Connection Type: Screw terminal for secure and reliable connections
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Compatibility: Suitable for Siemens 3RT2 contactors and 3RH2 contactor relays
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High Durability: Designed for long service life and consistent performance in demanding industrial environments
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Function: Extends the switching and control capacity of contactors
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Application Areas: Ideal for automation systems, machinery control, and electrical distribution setups
Benefit
- Enhanced Control Flexibility – Adds extra auxiliary contacts to your system for improved control and monitoring.
- Easy Installation – Front-mounted design allows quick setup without complex wiring adjustments.
- Reliable Performance – Siemens engineering ensures long-lasting, stable operation even under heavy use.
- Universal Compatibility – Perfect fit with Siemens 3RT2 and 3RH2 series for streamlined integration.
Technical Detail
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Product Number: 3RH2911-1HA31
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Manufacturer: Siemens
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Type: Auxiliary Switch
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Contact Configuration: 3NO + 1NC
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Terminal Type: Screw terminal
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Mounting Position: Front mount
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Compatible Devices: Siemens 3RT2 contactors, Siemens 3RH2 relays
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