Email: sales@runshengdcs.com
WhatsApp / Wechat：+86 15383419322
Phone：+86 15383419322Description
The ABB 07KT97H3 is a high-availability Triple Modular Redundancy (TMR) Synchronization Module for ABB’s AC 800M High Integrity control system, engineered for mission-critical applications requiring IEC 61508 SIL 3 compliance in extreme environments. This ruggedized version features hardened construction with MIL-spec connectors and extended temperature tolerance (-40°C to +85°C), making it ideal for offshore platforms, arctic installations, and high-vibration industrial sites. The 07KT97H3 synchronizes triple-redundant PM865 controllers with ≤30ns clock skew, enabling seamless failover in under 50ms during processor faults. Its fiber-optic synchronization links (2.5 Gbps) are immune to electromagnetic interference, ensuring deterministic operation in switchyards and near high-voltage equipment.
Designed for safety instrumented systems (SIS), the ABB 07KT97H3 incorporates triple-voting FPGAs that cross-validate synchronization data every 10μs, detecting and correcting bit errors before they impact control logic. The module’s hermetically sealed housing (IP68 when mated) withstands salt spray, hydrocarbon exposure, and 98% humidity without degradation. Enhanced shock resistance (50g) and vibration tolerance (5g @ 15-150Hz) allow deployment on floating production vessels and seismic-active regions where conventional modules fail.
07KT97H3 ABB
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 07KT97H3 |
| Manufacturer | ABB |
| Product Type | TMR Synchronization Module |
| System Platform | AC 800M HI |
| Safety Certification | IEC 61508 SIL 3 (TÜV certified) |
| Redundancy Architecture | Triple Modular Redundancy (TMR) |
| Clock Synchronization | ≤30ns controller skew |
| Sync Links | 3 × 1310nm Fiber-Optic (LC Connectors) |
| Data Rate | 2.5 Gbps per channel |
| Failover Time | <50ms (full state transfer) |
| EMC Immunity | 200V/m @ 80-6000MHz (IEC 61000-4-3) |
| Shock/Vibration | 50g / 5g (IEC 60068-2-27/6) |
| Power Supply | 24V DC ±2% (1.5A max) |
| Operating Temperature | -40°C to +85°C (-40°F to 185°F) |
| Connection | MIL-DTL-38999 Series III |
| Hazardous Certification | ATEX/IECEx Zone 2, DNV-GL NA |
| MTBF | 250,000 hours |
| Dimensions | 128mm × 55mm × 120mm |
Main Features and Advantages
Deterministic Fault Tolerance: Triple independent synchronization paths with hardware-based discrepancy detection. Self-healing algorithms automatically re-synchronize controllers after transient faults without process interruption. The ABB 07KT97H3‘s patented “State Mirroring Engine” replicates 16MB controller memory in 0.8ms cycles.
Extreme Environment Resilience: Gold-plated contacts resist sulfide corrosion in sour gas environments. Conformal-coated PCBs prevent dendritic growth in humid climates. Vibration-dampened mounting absorbs 15g shock loads. Optional conformal filler available for offshore splash-zone deployment.
Application Field
The ABB 07KT97H3 secures operations in:
FPSO Vessels: Turret mooring control with DNV-GL compliance
Arctic LNG Trains: Cryogenic process safety at -50°C ambient
Seismic Zones: Earthquake-resistant shutdown systems (IEEE 693 certified)
Hydrogen Plants: SIL 3 combustor control with ATEX compliance
Copper Smelters: Electrolyte cell emergency dump systems
During hurricane-force vibrations (15g), the module maintains synchronization where standard units lose alignment.
07KT97H3 ABB
Related Products
PM865AK: SIL 3 Controller Processor
07BR61R1: Redundant Base Unit
07EA90-SI: Safety Fieldbus Interface
07SA91: SIL 3 Analog Input
07SD92: Safety Digital Output
CI865: PROFINET Interface
SA801F-HI: Reinforced Power Supply
CP600-T: Ruggedized Operator Panel
