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Brand: Siemens
Part No: 6ES7421-1BL00-0AA0
Type: Digital Input Module SM 421
System: Simatic S7-400
Condition: New Open Box
The Siemens 6ES7421-1BL00-0AA0 digital input module SM 421 provides 32 digital inputs at 24 V DC for SIMATIC S7-400 automation systems. This product meets industrial demands for precise input signal integration within control environments.
Shipping & Support
✓ Ships within 24 hours from stock
✓ Express shipping options available at checkout
✓ Worldwide insured shipping via UPS & DHL
✓ Includes 30-day warranty
Photos show the actual item. If multiple units are available, all are identical in condition and specifications.
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We supply industrial automation spare parts including PLCs, HMIs, CPUs, I/O modules, drives, sensors, and control components from leading brands such as Siemens, Beckhoff, Allen-Bradley, Omron, Schneider Electric, Eaton, and more. All parts are available from stock and ready for fast worldwide shipping. Aegean Automation is a trusted supplier of industrial automation components for production systems, machinery, and factory automation worldwide.
This product is used in industrial automation systems to support reliable operation and integration within control and monitoring environments.
It is commonly applied in PLC systems, control panels, and automation processes where stability and long-term performance are required.
Suitable for maintenance, replacement, or expansion of existing industrial automation systems.
