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Siemens 6ES7521-1BH10-0AA0 Programmable Logic Controller
The Siemens 6ES7521-1BH10-0AA0 module provides 16 digital inputs at a rated 24 V DC with 3.2 ms typical input delay. It supports a permissible supply range of 19.2–28.8 V, includes a 40-pin push-in connector, and features RUN, ERROR, and channel-status LEDs. The unit measures 25 × 147 × 129 mm, offers IP20 protection, and supports prioritized startup and firmware updates.
| Brand | Siemens |
| Product Type | Programmable Logic Controller |
| Product | 6ES7521-1BH10-0AA0 |
Siemens 6ES7521-1BH10-0AA0 Programmable Logic Controller - Technical Specifications
| Specification | Value |
|---|---|
| Product Description | SIMATIC S7-1500 Digital input module, DI 16x24 V DC BA, 16 channels in groups of 16, input delay typ. 3.2 ms, input type 3 (IEC 61131); Delivery incl. front connector Push-in |
| Product family | SM 521 digital input modules |
| Product Lifecycle (PLM) | PM300:Active Product |
| PLM Effective Date | 219 / 219 |
| Region Specific PriceGroup / Headquarter Price Group | Show prices |
| Metal Factor | AL : N / ECCN : N |
| Net Weight (kg) | 15,10 x 20,30 x 4,00 |
| Packaging Dimension | CM |
| Package size unit of measure | 1 Piece |
The Siemens 6ES7521-1BH10-0AA0 Programmable Logic Controller module is a digital input unit within the SIMATIC S7-1500 series. It provides 16 digital inputs with electrical isolation, operates from a rated 24 V DC supply range, and supports a configurable 3.2 ms input delay. This Siemens model includes RUN and ERROR LEDs, channel status indicators, and compatibility with STEP 7 TIA Portal engineering tools.
This digital input module is used in conveyors, automated packaging systems, assembly machines, and general factory automation where reliable input monitoring is required. Its isolated channels support clean signal acquisition, while push-in connectivity simplifies wiring. The IP20 housing and firmware update capability enhance system maintainability and ensure stable operation in industrial control panels.
The Siemens 6ES7521-1BH10-0AA0 module delivers dependable performance with 16 inputs, a robust 24 V DC operating range, and a 3.2 ms delay profile suitable for industrial detection tasks. This Siemens model suits OEM equipment, distributed I/O systems, and S7-1500 automation solutions where durable and precise input measurement is essential. Its design, diagnostics, and integration features support long-term panel reliability.
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