ABB SPHSS13 – High-Safety Protection Board
Technical Specifications
Model: SPHSS13
Manufacturer: ABB
Module Type: High-Safety / Protection Interface Board
System Compatibility: ABB Symphony Plus and related industrial control platforms
Signal Type: Safety-related digital inputs/outputs
Isolation: Channel-to-channel and channel-to-system galvanic isolation
Input Voltage Range: 24 VDC control signals (typical)
Response Time: Designed for fast safety-critical reaction
Operating Temperature: -20°C to +55°C
Storage Temperature: -40°C to +70°C
Mounting Method: Enclosure or panel-mounted, depending on cabinet design
Coating: Conformal-coated PCB for harsh environments
Weight: Approx. 0.28 kg

Overview
The ABB SPHSS13 is a specialized high-safety protection board used in advanced industrial control and safety systems. It is engineered to interface seamlessly with ABB’s Symphony Plus architecture, providing high-integrity protection, signal conditioning, and safe isolation for mission-critical processes.
Designed for sectors where safety and reliability are paramount, the SPHSS13 ensures that protection logic, emergency shutdown signals, and safety feedback pathways remain stable and accurate under all operating conditions.
Structure and Composition
The internal layout of the SPHSS13 is optimized for durability and performance:
Input/Output Terminal Section – Handles wiring for alarm signals, protective relays, and interlock circuits.
Safety Logic Interface Circuitry – Provides signal validation, safe-state handling, and electrical isolation.
Protection Relay Interface – Ensures safe, accurate triggering of shutdown or trip functions.
Micro-Diagnostic Components – Offer self-testing and health monitoring capabilities.
Protective Coating Layer – Shields the board against humidity, dust, corrosive contaminants, and surface oxidation.
This multi-layer architecture ensures stable electrical characteristics even under vibration, high temperature, or electromagnetic interference.

Key Features
High-Integrity Safety Compliance: Designed for use in safety instrumented systems (SIS).
Fast Response: Supports rapid detection and reaction to process abnormalities.
Robust Isolation: Prevents cross-channel interference and protects upstream controllers.
Diagnostic Indicators: Onboard LEDs and self-test functions assist with real-time monitoring.
Long-Life Industrial Design: Meets rigorous ABB standards for tough plant conditions.
Flexible Integration: Compatible with multiple ABB protection and control modules.
Low Maintenance: Modular structure allows quick replacement and inspection.
Application Areas
The ABB SPHSS13 is widely deployed in industries requiring advanced and continuous protection management:
Power Generation (Thermal, Hydro, Nuclear) – Emergency trip logic, turbine protection, and plant safety interlocks.
Oil & Gas Refining & Transmission – Overpressure, flame detection, and plant shutdown control.
Chemical & Petrochemical Manufacturing – Process safety monitoring, flare control, and hazard mitigation loops.
Water & Wastewater Plants – Pump protection, system interlocks, and emergency cutoff control.
Heavy Industrial Facilities – Machinery protection, overspeed detection, and equipment safeguarding.
Its reliability makes it suitable for any installation needing continuous high-level protection and SIL-oriented design practices.

Installation & Maintenance
Installation: Mount the SPHSS13 into the designated control cabinet location. Ensure shielded cables and correct polarity when wiring safety signals.
Commissioning: Configure safety logic via the associated ABB control platform and verify channel behavior through test functions.
Maintenance:
Inspect terminals for tightness and signs of corrosion.
Use onboard diagnostics to detect channel faults.
Replace modules using plug-in design without disturbing surrounding wiring.
Operating Environment: Keep the module in clean, temperature-controlled enclosures to maximize lifespan.
Advantages
High reliability for long-term critical operations
Enhanced system safety through robust electrical isolation
Compact form factor for flexible cabinet design
Built to ABB’s global standards with wide service and spare-parts support
A future-proof module aligned with safety-critical automation requirements
Conclusion
The ABB SPHSS13 High-Safety Protection Board delivers exceptional performance for industries where safety, precision, and reliability cannot be compromised. With advanced isolation, fast response characteristics, and seamless integration into ABB control architectures, it is an essential module for maintaining safe and efficient operations in modern industrial environments.