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| Place of Origin: | Germany |
| Brand Name: | Siemens |
| Certification: | COO & COC |
| Model Number: | 6ES7521-1BL10-0AA0 |
Siemens 6ES7521-1BL10-0AA0 SIMATIC S7-1500 32Ch Digital Input Module DI32×24VDC
The Siemens 6ES7521-1BL10-0AA0 is a high-performance 32-point digital input module designed for the SIMATIC S7-1500 programmable logic controller (PLC) system. Operating at 24V DC, this module reliably acquires binary signals from field devices such as pushbuttons, limit switches, proximity sensors, and relay contacts—making it a fundamental building block in modern industrial automation, machinery control, and process monitoring applications.
Engineered for speed, diagnostics, and seamless integration within the TIA (Totally Integrated Automation) Portal environment, the 6ES7521-1BL10-0AA0 supports both sinking (NPN) and sourcing (PNP) sensor wiring, offers channel-level diagnostics, and features integrated cable shielding—ensuring robust signal integrity even in electrically noisy environments like automotive plants, packaging lines, or material handling systems.
Product Overview: Siemens 6ES7521-1BL10-0AA0
| Manufacturer | Siemens |
| Product Family | SIMATIC S7-1500 I/O Modules |
| Module Type | Digital Input (DI) |
| Order Number | 6ES7521-1BL10-0AA0 |
| Number of Inputs | 32 channels (grouped in 4 x 8-channel banks) |
| Input Voltage | 24 V DC (nominal) |
| ounting | Snap onto S7-1500 DIN rail |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Certifications | CE, UL, cUL, KC, EAC, RCM |
Product Pictures
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