
6AG1521-1FH00-7AA0 SIPLUS Digital Input Module
This listing provides detailed technical information for the Siemens 6AG1521-1FH00-7AA0 digital input module. Users may submit inquiries to request further documentation or specific project requirements.
Quick Facts
- Part number
- 6AG1521-1FH00-7AA0
- Brand
- Siemens
- Category
- I/O Modules
- Product type
- I/O Modules
- Lifecycle
- Active Product
- Dimensions
- 15.00 x 15.00 x 4.5 cm
- Net weight
- 0.346 Kg
- Source category
- SIPLUS SM 521 digital input modules
Product Overview
The 6AG1521-1FH00-7AA0 is a digital input module designed for harsh industrial environments. It features conformal coating for enhanced protection against moisture and contaminants during operation. Review Siemens 6AG1521-1FH00-7AA0 as I/O Modules with source category SIPLUS SM 521 digital input modules, recorded lifecycle Active Product, and submitted model identity.
This unit belongs to the SIPLUS S7-1500 series, offering robust performance in demanding conditions. The module supports 16 digital input channels grouped for efficient signal processing and monitoring tasks.
Technical Review Notes
- Input voltage specification is 230V AC for reliable signal detection in standard industrial power systems. Keep dimensions 15.00 x 15.00 x 4.5 cm and net weight 0.346 Kg unchanged while comparing project documents and product image evidence.
- Operating temperature range extends from -40°C to +70°C for extreme environmental adaptability.
- The module contains 16 discrete input channels organized in four distinct groups for structured wiring.
- Input delay is recorded at 20 ms, ensuring consistent timing for fast-switching applications.
- Conformal coating is applied to protect internal components from corrosion and chemical exposure effectively.
- Physical dimensions are listed as 15.00 x 15.00 x 4.5 cm for compact panel integration.
Model Identification
- Base model reference is 6ES7521-1FH00-0AA0 with added enhancements for severe operating conditions. Use the source path Automation technology / SIPLUS digital modules / SIPLUS SM 521 digital input modules to confirm catalog context, model family, parameter review scope, and technical inquiry preparation notes.
- Brand designation is Siemens, indicating origin from a recognized automation technology manufacturer globally.
- Product class B indicates specific handling procedures may apply during project documentation reviews.
- Lifecycle status is Active Product, confirming current manufacturing support and technical data review details.
Technical Parameters
| Product type | I/O Modules |
|---|---|
| Lifecycle | Active Product |
| Dimensions | 15.00 x 15.00 x 4.5 cm |
| Net weight | 0.346 Kg |
| Source category | SIPLUS SM 521 digital input modules |
Parameters are factual source fields retained for model review.
Parameter Review
- Net weight is recorded as 0.346 Kg for accurate logistics and mounting load calculations. Check product-owned images, label text, connector area, and submitted model references against the exact 6AG1521-1FH00-7AA0 record before publication.
- Input type 1 aligns with IEC 61131 standards for universal digital signal interpretation methods.
- Grouping structure allows for flexible configuration within larger automation controller rack architectures.
- Extended temperature rating supports deployment in outdoor or unheated industrial facility environments safely.
- Coating specification ensures longevity and reduced maintenance frequency in high-humidity locations.
Catalog Classification
Image & Label Review
- Visual inspection should confirm the presence of conformal coating on visible circuit board areas. Review Siemens 6AG1521-1FH00-7AA0 as I/O Modules with source category SIPLUS SM 521 digital input modules, recorded lifecycle Active Product, and submitted model identity.
- Terminal block layout matches standard Siemens S7-1500 series connection patterns for easy identification.
- Labeling on the module front provides clear part number verification for inventory management purposes.
- Overall housing condition appears intact with no visible signs of physical damage or wear.
Product Image Gallery

Inquiry Preparation
- Review project specifications to ensure 230V AC input requirements match the module capabilities.
- Verify environmental conditions exceed standard ranges to justify the need for SIPLUS extensions.
- Check rack space constraints against the 15cm width dimension for proper mechanical fitment.
- Prepare technical questions regarding group configuration limits and input delay tolerances for clarity.
Category Context
This item falls under the broader category of Industrial Automation I/O Modules for control systems.
It is specifically classified within SIPLUS digital modules for enhanced durability and reliability needs.
Review Notes
- All technical parameters are sourced directly from documented manufacturer documentation for accuracy assurance.
- Users should verify specific application requirements before initiating any formal inquiry preparation discussions.
- Dimensional data is critical for planning enclosure modifications or DIN rail mounting arrangements.
- Contact relevant technical support channels for detailed electrical schematics or wiring diagram requests.



