Performance Overview
The Siemens 3RH1921-1DA11 (SIRIUS Auxiliary Switch Block) is a versatile, high-reliability expansion accessory designed to snap onto standard Siemens SIRIUS power contactors. Featuring a combined 1NO and 1NC contact arrangement, this module expands the switching and signaling capabilities of industrial motor control circuits effortlessly.
🚀 Key Performance Benefits
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Easy Front Mounting: Snaps securely onto the front of compatible SIRIUS contactors without requiring extra panel space.
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Flexible Signaling: Integrated 1NO and 1NC contacts provide immediate feedback and control interlocking options.
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High Industrial Endurance: Built with robust materials to maintain stable electrical contact performance across heavy switching cycles.
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Siemens Original Quality: Guaranteed brand-new original manufacturing to ensure optimal operational reliability and long service life.
⚙️ YingZhou Industrial Automation Integration
