
Original Simatic S7 300 Sm321 6es7321-1EL00-0AA0 PLC Module for Siemens PLC. Original Siemens Module: Genuine 6ES7321-1EL00-0AA0 SIMATIC S7-300 Digital Input SM 321. High Digital Input Count: Features 32 digital inputs with optical isolation for robust performance. Wide Voltage Compatibility: Operates with 120V AC input for versatile industrial applications. Comprehensive Certifications: Certified with CCC, ISO 9001, CE, ISO4001:2015, and ISO14001. Brand New Condition: Supplied as brand new original equipment for immediate deployment. Flexible Payment Terms: Accepts LC, T/T, PayPal, Western Union, and small-amount payments. Low Minimum Order: Minimum Order Quantity is just 1 piece for small batch needs. Fast Lead Time: Average lead time within 15 workdays for both peak and off-season.