Description
HIMA K9203 | 19-Inch Rack Circulation Fan Drawer
Product Introduction
Rack cooling is not an optional accessory in a densely populated safety-control cabinet. The HIMA K9203 is identified by surplus-market documentation as a circulation fan drawer with three axial fans and a 24 VDC supply. Its purpose is to move air through the rack and help maintain suitable operating conditions for installed control hardware.
The K9203 is associated with order number 996920302 and is described as a 19-inch rack cooling assembly. HIMA’s K9203A datasheet provides additional context for the related rack-fan family, including airflow direction, monitoring, and operating limits. Those K9203A specifications should not automatically be assigned to K9203 without confirming the exact nameplate and applicable documentation.
For legacy HIMA installations, procurement should focus on the complete assembly—not simply the model name. Confirm fan count, mounting dimensions, connector configuration, supply requirements, and monitoring interface before treating a surplus K9203 as a drop-in replacement.
Key Technical Specifications
- Manufacturer: HIMA
- Model: K9203
- Associated Order Number: 996920302, as reported by surplus suppliers
- Product Classification: Circulation fan drawer / rack cooling module
- Fan Configuration: Three axial fans, according to supplier descriptions
- Supply Voltage: 24 VDC, reported for
- Installation Format: 19-inch rack-mounted assembly
- Primary Function: Forced-air rack ventilation
- Fan Monitoring: Run monitoring is reported in surplus-market product descriptions
- Airflow Rating: Not independently verified for the exact variant
- Rated Fan Speed: Confirm against the actual unit’s documentation
- Current Consumption: Confirm against the unit nameplate
- Mounting Depth and Height: Verify against the installed rack and physical assembly
- Connector and Pinout: Confirm from the actual unit and applicable wiring documentation
Related-Model Reference
HIMA’s K9203A datasheet specifies a three-axial-fan circulation unit with redundant supply, fan-operation monitoring, and voltage monitoring. It also documents 24 VDC operation, a maximum current of 750 mA, airflow of 300 m³/h, and a 19-inch, 1 RU footprint with 215 mm depth.
These are K9203A reference values, not guaranteed specifications. Confirm applicability before using them for electrical design, thermal calculations, or replacement approval.
Global Sourcing & Live-Test SOP
A used HIMA should be evaluated as a rack cooling assembly with an electrical and mechanical interface. A fan that spins during a brief bench test may still be unsuitable for continuous cabinet operation.
1. Inbound Verification
- Photograph the complete nameplate and all part-number markings.
- Confirm , not K9203A, K9202B, or another related fan assembly.
- Record the associated order number, serial number, and revision information where available.
- Inspect all three fans for damaged blades, debris, bearing wear, or corrosion.
- Check the metal frame, mounting ears, fasteners, and connector for damage.
- Compare the physical dimensions and rack interface with the installed unit.
- Request traceability documents where available; do not treat a reseller’s OEM claim as proof of authenticity.
2. Controlled Power-Up and Functional Test
- Verify the actual supply voltage, polarity, and connector pinout before energizing.
- Use a controlled power source with current monitoring.
- Do not rely solely on a reseller’s 24 VDC description.
- Confirm that all three fans start and continue running.
- Listen for bearing noise, rubbing, or abnormal vibration.
- Monitor current draw for instability or unexpected changes.
- Record applied voltage, measured current, and individual fan behavior.
3. Rack and Airflow Diagnostics
A replacement should not be considered service-ready based only on fan rotation.
- Confirm airflow direction against the rack’s original cooling design.
- Check for obstructions, damaged fan guards, or restricted air paths.
- Verify that the mounting frame matches the intended rack position.
- Inspect the fan-monitoring interface, where fitted.
- Verify fan-failure indications through the approved maintenance procedure.
- Do not bypass a cooling alarm or safety-system diagnostic to complete testing.
4. Extended Heat Run
For a unit sold as tested, conduct an extended powered run under controlled conditions.
Monitor:
- Startup reliability
- Fan rotation consistency
- Abnormal noise or vibration
- Current stability
- Connector and wiring temperature
- Airflow consistency
- Unexpected fan stoppages
Record the test duration, supply voltage, measured current, and observed condition. Do not claim a 24-hour heat run unless it was actually completed and documented.
5. Final Preparation and Shipment
- Record the exact model and all additional markings.
- Photograph the complete assembly, fans, and connector.
- Document whether all three fans were tested.
- Include available test results and condition details.
- Protect fan blades, mounting ears, and connectors during shipment.
- Use suitable ESD-aware packaging where electronic monitoring components are present.
- Clearly identify whether the item is new, used, refurbished, or tested surplus.
- Do not represent third-party inspection as HIMA factory certification.
Field Engineer’s Pitfall Guide
❗ Do not assume and K9203A are identical
HIMA’s datasheet is useful for understanding the related rack-fan family, but exact interchangeability should be verified. Match the complete model designation, order number, mounting, supply, and monitoring interface before substitution.
❗ Do not apply related-model electrical ratings blindly
documentation lists specific current, voltage tolerance, and airflow values. Those ratings should not be treated as confirmed for unless the applicable documentation or unit markings establish the match.
❗ Cooling compatibility is more than physical fit
A rack fan with the wrong airflow direction, connector, or monitoring arrangement may not perform as intended. Verify the complete cooling configuration and the cabinet’s approved maintenance procedure before returning the system to service.
Intent-Driven FAQ
What is the HIMA ?
The HIMA is identified as a circulation fan drawer with three axial fans for rack cooling. Surplus-market references associate it with order number 996920302.
Is the HIMA a safety PLC or I/O module?
No. The is a rack cooling accessory. It provides forced-air ventilation rather than safety logic processing or field signal acquisition.
What voltage does the HIMA use?
Surplus-market listings report 24 VDC. Verify the exact unit’s nameplate and wiring documentation before applying power.
How many fans are in the ?
Supplier descriptions identify the as a three-axial-fan circulation drawer. Confirm the actual fan count and condition when purchasing used equipment.
Is interchangeable with ?
Do not assume direct interchangeability based on the similar designation. HIMA publishes -specific documentation, but the complete installed configuration should be checked before approving a substitute.
Can the HIMA be hot-swapped?
Do not assume hot-swap capability. Treat replacement as a power-off maintenance task unless the specific system documentation explicitly authorizes live replacement. Follow the site’s approved cabinet and safety-system maintenance procedures.
What should be checked before buying a used ?
Confirm the full model number, order number, fan count, electrical rating, connector, rack dimensions, physical condition, and supplier test status. Request clear photos of the nameplate and complete assembly before purchase.
Bottom Line for Buyers
The is a three-axial-fan circulation drawer intended for 19-inch rack cooling. Surplus documentation identifies the unit as a 24 VDC assembly associated with order number 996920302, while detailed ratings should be confirmed against the exact unit and applicable OEM documentation.
For procurement, request photos of the nameplate, all fans, mounting frame, and connector. Confirm rack compatibility and obtain documented test results before treating a surplus as a service-ready replacement.
