Siemens 3RH1921-1EA11 Auxiliary Contact Block
The Siemens 3RH1921-1EA11 is a lateral auxiliary contact block designed to enhance the functionality of Siemens SIRIUS series contactors. This component provides additional control options, making it suitable for various industrial applications.
Key Features
- Contact Configuration: Equipped with one normally open (1 NO) and one normally closed (1 NC) contact, allowing for versatile control configurations.
- Mounting: Designed for side mounting, it can be easily attached to SIRIUS contactors ranging from sizes S0 to S12 without the need for additional tools.
- Electrical Ratings: Supports operational currents of up to 10 A at 24/230 VAC, 3 A at 110 VDC, and 1 A at 220 VDC, accommodating various control circuit requirements.
- Durability: Engineered for longevity, offering up to 10 million mechanical operations and 200,000 electrical operations, ensuring reliable performance over time.
- Compliance: Meets international standards, including IEC 60947-5-1, ensuring compatibility and safety in industrial environments.
Applications
This auxiliary contact block is ideal for expanding the control capabilities of Siemens SIRIUS contactors in motor control and automation systems. Its robust design and compliance with international standards make it a reliable choice for enhancing control circuits in various industrial settings.
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