GE IC3600STKK1 – Speedtronic Mark I/II Plug‑In Control Board for Turbine Panels

The GE IC3600STKK1 is a plug‑in circuit board from the IC3600 series, commonly used in GE Speedtronic Mark I/II gas turbine control panels. From my experience, it’s a straightforward, rack-mounted module that interfaces through the standard IC3600 edge connector, handling analog and discrete control tasks inside the panel without any separate field cabling to the board itself. You might notice that these cards are typically swapped on a like‑for‑like basis during planned outages to keep legacy turbines running reliably.

Order Placement Process and Guarantees

Key Features

• Designed for GE Speedtronic Mark I/II racks – Fits the IC3600 backplane and uses the standard edge connector for quick swaps.
• Backplane‑powered – Typically uses +5 VDC for logic and ±15 VDC for analog stages provided by the panel power supply.
• Discrete and analog signal handling – Interfaces to the control system through the backplane; no direct field wiring to the card face.
• Service-friendly form factor – Single-slot card with front extraction points; easy to remove for inspection or replacement.
• Legacy turbine continuity – Helps maintain installed Mark I/II systems without redesigning the panel.
• Used, surplus, or refurbished availability – In many cases, these cards are supplied with documented test results for peace of mind.

Technical Specifications

Related or Supporting Products

• IC3600 Backplane / Card Rack – Required mounting and interconnect platform for the IC3600 series boards.
• Mark I/II Panel Power Supply Modules – Provides the +5 V and ±15 V rails used by IC3600 boards.
• IC3600 Extender Card (diagnostic) – Handy for live measurements and troubleshooting without removing the card from service position.
• Edge‑connector Harness/Hardware – Replacement connectors and retention hardware for reliable contact in older racks.
• Other IC3600 Functional Variants – Similar cards in the IC3600 family exist for different loops; in many cases, STK‑series variants are close, but verify artwork and component population before swapping.

A maintenance lead in a Gulf Coast plant mentioned the module seated cleanly and passed loop checks on first start, which seems to be fairly typical when the backplane contacts are clean and the slot assignment is correct.

Installation & Maintenance

• Cabinet environment: Install in a clean, dry control cabinet; maintain panel temperature within 0–60 °C with adequate ventilation.
• Wiring & grounding: All signals route via backplane; ensure panel ground integrity and avoid mixed grounds that can introduce noise on analog stages.
• Handling: Observe ESD precautions; handle by card edges; inspect edge connector for oxidation before insertion.
• Slot verification: Match the exact slot/function per your panel drawings; label the removed board and photograph connections for traceability.
• Routine care: Periodically clean card guides and backplane contacts; re‑seat cards during scheduled outages; keep firmware and setpoints managed at the system level where applicable.
• Calibration/checks: Perform loop checks after replacement; for analog paths, compare readings against known references to confirm stability.

Quality & Certifications

• Quality control: Functional testing and visual inspection prior to shipment, with traceable records.
• Certifications: Legacy GE industrial hardware; CE/UL compliance is typically addressed at the panel/system level. RoHS exemptions may apply for legacy parts.
• Warranty: 12 months (365 days) repair/replace coverage from delivery date.
• Documentation: Serial numbers and test reports available on request for your QA files.