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| Place of Origin: | U.K. |
| Brand Name: | Siemens |
| Certification: | COO & COC |
| Model Number: | 6ES7521-1BH10-0AA0 |
6ES7521-1BH10-0AA0 SIEMENS SIMATIC S7-1500 Digital input module DI 16x24VDC BA
The Siemens 6ES7521-1BH10-0AA0 is a versatile and compact 16-channel digital input (DI) module from the SIMATIC ET 200MP distributed I/O system, designed for reliable signal acquisition in industrial automation environments. Supporting both sinking (NPN) and sourcing (PNP) sensor wiring without hardware modifications, this module seamlessly interfaces with standard 24 V DC field devices—including proximity sensors, limit switches, pushbuttons, and photoelectric detectors—making it ideal for global machine builders and system integrators.
Featuring a single group of 16 inputs, the 6ES7521-1BH10-0AA0 offers a balanced combination of performance, simplicity, and cost-efficiency. Each channel includes software-configurable input filtering (via TIA Portal) to suppress electrical noise and contact bounce—ensuring stable operation even in electrically noisy settings such as near variable frequency drives (VFDs), motors, or welding equipment.
Product Overview: Siemens 6ES7521-1BH10-0AA0
| Manufacturer | Siemens AG – Digital Industries |
| Product Family | SIMATIC ET 200MP / S7-1500 Distributed I/O System |
| Order Number | 6ES7521-1BH10-0AA0 |
| Module Type | Digital Input (DI), 24 V DC, universal (PNP/NPN compatible) |
| Number of Inputs | 16 channels (1 group) |
| Input Circuit Type | Optocoupler-isolated, compatible with both sinking and sourcing sensors |
| Rated Input Voltage | 24 V DC (19.2–28.8 V) |
Product details pictures
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