ABB Plantguard Version 3.4 SIL 3 Certificate

This certificate, issued by TÜV Industrie Service GmbH, certifies that the ABB Plantguard Version 3.4 system meets safety integrity level SIL 3 per IEC 61508 for use in safety-related programmable electronic applications such as process control, emergency shutdown, burner management, and fire/gas systems. The system operates in a 2-out-of-3 voting architecture with diagnostics and supports 3-2-0 or 3-2-3-2-0 modes, and compliance is based on multiple international standards including IEC 61508, EN 298, NFPA 85/86/72, and EN 61131-2.