GE DS3800HAFA In Stock | New Surplus Mark IV Cooling Pack

Description

Product Core Brief

• Model: DS3800HAFA
• Brand: GE (General Electric)
• Series: Mark IV Speedtronic Turbine Control System
• Core Function: Provides active cooling fan assembly for Mark IV heat sinks requiring enhanced thermal management.
• Type: Heat Sink Fan Assembly
• Key Specs: Heat sink fan; 24 VDC; aluminum construction; forced-air cooling; VME form factor.
• Condition: New Original (New Surplus) — not refurbished.

Key Technical Specifications

• Function: Active cooling fan assembly
• Fan Voltage: 24 VDC
• Fan Current: 0.2 A
• Airflow: 20 CFM
• Material: Aluminum
• Cooling Type: Forced-air
• Mounting: VME rack
• Operating Temperature: –30 to +65 °C ambient

Quality Inspection Process (SOP Transparency)

This is what every DS3800HAFA goes through before it ships:

Incoming Verification: The OEM packing slip is matched against the shipping manifest. Visual inspection includes checking the GE holographic label (or classic Speedtronic logo), verifying the heat sink fan has no dents or damage, and examining the fan blades for any obstructions or damage.

Live Functional Test: The heat sink fan is installed in a test rack with a known-good module and verified to fit correctly. The fan is powered on and verified to spin correctly. Thermal performance is checked by running the module at full load and measuring the heat sink temperature—must be within spec.

Electrical Parameters: A Fluke 1587 insulation tester measures isolation between the fan and the backplane. We look for >20 MΩ at 500 VDC. Power consumption is measured at full fan speed—must be <5 W.

Mechanical Inspection: The heat sink fan is inspected for proper fit and alignment. The fan blades are inspected for damage.

Final QC & Packaging: The QC report lists the fit test, fan operation, thermal performance, and visual inspection results. The heat sink fan goes into a new anti-static bag with a tamper-evident seal, then into a double-walled carton with foam inserts. A “QC Passed” label with the test date and technician’s ID goes on the outer box. All test data and photos are available on request.

Field Replacement Pitfalls

The DS3800HAFA is the heat sink fan assembly. Here’s the field-tested list:

Fan Failure
The HAFA’s fan can fail over time. I had a plant where a fan failed and the module overheated—the fan bearings had seized. ❗ Check the fan regularly for noise or vibration.

Airflow Obstruction
The HAFA relies on forced-air cooling. If the airflow is obstructed, the module will overheat. ❗ Ensure the fan has adequate airflow.

Fan Voltage
The HAFA’s fan is 24 VDC. If you connect a 12 VDC fan, it won’t spin correctly. ❗ Use 24 VDC fans only.

Mounting Screws
The HAFA is mounted with screws. ❗ Use the correct torque for the mounting screws.

Module Compatibility
The HAFA is designed for specific Mark IV modules. ❗ Verify the module compatibility before installation.

Get these five right and you’ll cut rework time by 90%.

New Original vs. Refurbished: Why It Matters

The DS3800HAFA is a legacy heat sink fan assembly. Refurbishment risk is moderate.

New Original (New Surplus) means this unit came from GE’s production line, sealed in an ESD-safe bag. The fan is new and undamaged. The serial number traces to GE’s production database.

Refurbished risk: The fan may be worn or damaged. I saw a refurbished HAFA in a plant that had a noisy fan—the bearings were worn. The refurbished fan cost 150; the new surplus unit was 250. The module overheated and failed.

Real cost: A failed fan can cause a module to overheat and fail. The cost of a module failure is tens of thousands of dollars. A new surplus fan is cheap insurance.

What we provide: We include a photo of the OEM packing slip. The anti-static bag is sealed with a tamper-evident label. The QC test report lists the fit test, fan operation, and thermal performance. You get a 12-month warranty.

Pricing context: Our price sits 30-50% above refurbished alternatives but 20-40% below GE’s current factory list price.

Performance Benchmarks & Test Results

Measured during our QC test. Conditions: test rack with a Mark IV backplane simulator and a CXCIA CPU module, 24.0 VDC supply (Fluke 8845A), ambient 24 °C.

• Fit Test: Heat sink fan fit correctly on the module.
• Fan Operation: Fan spun correctly. No noise or vibration.
• Thermal Performance: Module temperature stabilized at 45 °C. Heat sink temperature stabilized at 35 °C. Within spec.
• Airflow: 20 CFM measured. Within spec.
• Visual Inspection: No dents, scratches, or damage.
• MTBF (Published): GE’s datasheet listed 100,000 hours at 40 °C for the HAFA. Based on field data, expect 10-15 years of service under normal conditions.

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