Siemens 6ES7321-1BL00-0AA0 Simatic S7-300 Digital Input Module

The Siemens 6ES7321‑1BL00‑0AA0 is a SIMATIC S7‑300 digital input module designed for reliable acquisition of 24 VDC signals in industrial automation systems, featuring electrically isolated inputs and a compact design for seamless installation on DIN rails within control cabinets. Manufacturer: Siemens Manufacturer country: Germany Product type: Digital input module Automation system: SIMATIC S7‑300 Module type: SM 321 Model number: 6ES7 321‑1BL00‑0AA0 Function: Digital input acquisition Number of inputs: 32 digital inputs Input voltage: 24 VDC Input signal type: DC, positive logic Input isolation: Electrically isolated in groups Connector type: 1 x 40‑pole front connector Input current per channel: Approximately 7 mA Signal delay: Typical 3 ms Potential groups: Multiple, with common reference Diagnostic features: Group fault indication via LED Backplane bus current consumption: Approx. 100–120 mA at 5 VDC Power loss: Approx. 2.5 W Mounting type: DIN rail mount Module width: Standard S7‑300 form factor Enclosure rating: IP20 Operating temperature range: 0 to +60 °C Storage temperature range: −40 to +70 °C Housing material: Industrial‑grade thermoplastic Front indicators: LED status indicators per input group Certifications: CE, UL, cUL, EAC Application use: Industrial automation, machine control, process control, factory automation Condition: New, supplied in original Siemens packaging Please review pictures carefully and let us know if you have any questions!