Description
GE IS200TTURH1CCC-S1DF00Z Turbine Terminal Board for Mark VI Speed/Trip I/O

The IS200TTURH1CCC-S1DF00Z is a GE Mark VI turbine terminal board designed to terminate and condition key turbine field signals—typically speed pickups, trip circuits, and discrete 24 Vdc I/O—before they’re routed to the Mark VI controller. From my experience, TTUR boards are chosen when you need a dependable, drop-in replacement that keeps overspeed protection and trip logic wiring straightforward, without changing the panel layout. The H1CCC hardware revision suggests a mature build, while the S1DF00Z suffix seems to be a factory option string used for site-specific configurations.
Company’s Order Placement Process and Guarantees
- Warranty period: 365 days
- Lead time: 1 week if in stock; no more than one month at the latest
- Payment terms: 50% advance payment; full payment prior to delivery
- Express delivery: FedEx, UPS, DHL
Key Features
- Purpose-built for GE Mark VI systems – Ensures wiring, connectors, and signal levels align with standard Mark VI I/O practices.
- Speed pickup termination – Typically supports magnetic pickup (MPU) or proximity probe speed signals used for turbine speed/overspeed monitoring.
- Trip and protection circuits – Provides field termination for trip solenoids and interlocks so shutdown logic remains clean and serviceable.
- 24 Vdc discrete I/O – Handles common turbine discrete inputs/outputs with robust terminal points and clear labeling.
- Ribbon-cable backplane interface – Connects to Mark VI I/O cards through flat cables; no separate fieldbus or firmware to manage.
- Service-friendly layout – Clear screw terminals and test points make maintenance quicker; you might notice reduced downtime during swaps.
- Hardware revision H1CCC – A stable production revision many sites standardize on for consistency across cabinets.
Technical Specifications
| Brand / Model | GE / IS200TTURH1CCC-S1DF00Z |
| HS Code (reference) | 8538.90 (Parts suitable for use with the apparatus of heading 8535/8536/8537) |
| Power Requirements | Passive terminal board; field I/O typically 24 Vdc provided by the Mark VI panel supply |
| Operating Temperature | 0 to +60 °C (typical control cabinet environment) |
| Signal Input/Output Types | Turbine speed pickups (MPU/prox), 24 Vdc discrete inputs/outputs, trip/solenoid terminations (configuration-dependent) |
| Communication Interfaces | Flat ribbon connectors to Mark VI I/O cards; no external fieldbus |
| Installation Method | Panel/cabinet mounting inside the Mark VI control cubicle; screw terminals for field wiring |
Application Fields
This board is commonly used in heavy-duty rotating equipment controls where Mark VI is present:
- Gas and steam turbines – Speed sensing, overspeed protection, trip circuit termination.
- Mechanical drive trains – Compressors and pumps using Mark VI turbine packages.
- Balance-of-plant interfaces – Discrete interlocks and permissives routed to the main controller.
One thing I appreciate is how it keeps field wiring tidy. A maintenance manager told me they replaced a failing TTUR and had the unit back on-line in under an hour, mostly because the terminal layout mirrored their existing board exactly.
Advantages & Value
- Compatibility – Designed for GE Mark VI; typically a direct, no-adapter swap when matching revision and cable set.
- Reliability – Robust screw terminals and proven layout reduce intermittent faults from vibration and heat.
- Cost and downtime savings – Minimal rewiring shortens outage windows; lower commissioning risk than non-OEM alternatives.
- Technical support – Clear signal segregation (speed, trip, discrete) makes troubleshooting faster for site technicians.
Installation & Maintenance
- Environment – Install in a clean, ventilated control cabinet; maintain ambient within 0–60 °C and avoid moisture ingress.
- Wiring – Use shielded twisted pair for speed pickups; land shields to the designated terminal or single-point ground per plant standard.
- Safety – De-energize 24 Vdc and trip circuits before handling; follow ESD precautions when touching the PCB.
- Checks – Verify correct ribbon cable orientation to the Mark VI I/O card; lightly tug-test field wires for proper torque.
- Routine care – Inspect terminals for looseness during outages; clean dust with dry air; no firmware updates required on this passive board.
Quality & Certifications
- Typical compliance: CE and UL/CSA component recognition on comparable GE Mark VI boards
- Manufacturing standards: GE industrial controls typically follow ISO-based quality systems
- Warranty: 365-day warranty as stated above
If you’re replacing an existing TTUR, matching the H1CCC revision and cable assemblies usually makes life easy. If your site uses non-standard speed probe wiring or custom trip logic, share a cabinet photo or wiring print—we can double-check compatibility before you place the order.









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