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6AV6644-0AC01-2AX1 Siemens
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The Siemens SIMATIC MP 377 19" Touch (6AV6644-0AC01-2AX1) is a Comfort-Panel HMI intended for industrial operator control and monitoring. Part of the SIMATIC MP 377 series, it interfaces with PLCs and automation networks via PROFINET, PROFIBUS, MPI and other protocols. Its 19-inch TFT color touchscreen provides visual process feedback. Siemens classifies it as available only as an exchange unit, with product phase-out effective October 1, 2026, and repair/spare support through October 3, 2028 ([cache.industry.siemens.com](https://cache.industry.siemens.com/dl/files/162/109486162/att_1354993/v1/20260202_-_SIMATIC_HMI_products_documentation_en.pdf?utm_source=openai)).
Best Suited For
- Operator-level visualization and control in machinery or process systems
- Replacement or spare in systems using SIMATIC Comfort Panel architecture
- Applications requiring large-format touchscreen interface
- Integration into PROFINET or PROFIBUS-based automation networks
Technical Specifications
I/O & Electrical
Communication & Power
Physical & Environmental
Certifications
CE, UL, cULus; not certified for ATEX Zone 2/22. FM Class I Division 2 compliance. EMC: EN 55 011 Class A (industrial environments) ([support.industry.siemens.com](https://support.industry.siemens.com/teddatasheet/?caller=SIOS&format=pdf&language=en&mlfbs=6AV6644-0AA01-2AX0&utm_source=openai))