{"product_id":"himax-hiquad-24vdc-1ru-rack-circulation-fan-unit-hima-k9203","title":"HIMax HIQuad 24VDC 1RU Rack Circulation Fan Unit | HIMA K9203","description":"\u003ch2\u003eHIMA K9203 Rack Fan Unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eHIMA K9203\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eK9203A\u003c\/strong\u003e Rack Fan Unit (Part No: 996920302), operates as a dedicated hardware component for forced ventilation and thermal dissipation within HIMax, HIMatrix, and HIQuad 19-inch subrack assemblies.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eK9203 (K9203A \/ Part No: 996920302)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHIMA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e19-inch rack, 1 RU height, depth 215 mm (51 x 254 x 114 mm module bounds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC (-15% to +20%, max 750 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan Configuration\u003c\/td\u003e\n\u003ctd\u003e3 axial fans (brushless DC motors)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAirflow Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 300 m3\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Speed\u003c\/td\u003e\n\u003ctd\u003e2800 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Pressure Level\u003c\/td\u003e\n\u003ctd\u003e~55 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpected Life\u003c\/td\u003e\n\u003ctd\u003e62,500 hours at 40 deg C ambient\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostics\u003c\/td\u003e\n\u003ctd\u003eFan speed threshold monitoring (75% to 85%), supply voltage monitoring, volt-free fault relay contact (1 A max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eAnodized aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eSIL3 Safety Rack Cooling \u0026amp; Fail-Safe Diagnostic Integration\u003c\/h3\u003e\n\u003cp\u003eThe HIMA K9203 unit integrates channel-level speed monitoring circuits to continuously evaluate the rotational velocity of all three axial fans. Designed to support SIL3 subrack installations, the internal diagnostic logic compares fan tachometer feedback against factory-set thresholds (75% to 85% nominal speed) and monitors incoming 24 VDC power rail stability.\u003c\/p\u003e\n\u003cp\u003eWhen a fan speed degradation, mechanical stall, or power supply deviation occurs, the onboard monitoring logic alters the state of a dry fault relay contact. This action transmits an immediate diagnostic alarm across the safety system backplane to trigger maintenance warnings, allowing operators to execute corrective action before subrack ambient temperatures compromise adjacent I\/O and processor modules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the internal monitoring logic signal a fan failure condition?\u003c\/p\u003e\n\u003cp\u003eA: An integrated monitoring circuit continuously evaluates motor speed and input voltage. If a fan drops below 75% to 85% of nominal speed or loses power, an onboard volt-free relay contact opens to trigger a system diagnostic alarm.\u003c\/p\u003e\n\u003cp\u003eQ: What power input range does the fan unit accept for steady operation?\u003c\/p\u003e\n\u003cp\u003eA: The module operates on a nominal 24 VDC power supply with an allowable input voltage tolerance of -15% to +20%, drawing a maximum current of 750 mA under full load.\u003c\/p\u003e\n\u003cp\u003eQ: Can the K9203 fan unit be integrated into standard 19-inch subrack frames?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The chassis follows a standard 19-inch 1 RU form factor with a 215 mm depth, making it directly compatible with 19-inch HIMax, HIMatrix, and HIQuad cabinet subracks.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the K9203 fan unit horizontally directly below or above the target I\/O subrack using standard 19-inch rack fasteners, verifying frame ground contact through chassis mounting ears. Ensure the air intake and exhaust paths remain unobstructed by wiring ducts or structural bulkheads to maintain the maximum 300 m3\/h airflow rate across the -20 to +70 deg C operating temperature spectrum.\u003c\/p\u003e\n\u003cp\u003eRoute the 24 VDC power conductors and diagnostic relay signaling cables in separated wire troughs away from high-voltage AC lines and variable frequency drive output cables. Terminate wiring shields to the cabinet central earthing bar and check terminal screw torque settings prior to energizing the 24 VDC feed.\u003c\/p\u003e","brand":"HIMA","offers":[{"title":"Default Title","offer_id":43782692667482,"sku":"K9203","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/309_fe212f16-182e-4eb0-a8e1-ae9f3127e27f.jpg?v=1785812781","url":"https:\/\/www.spareoil.com\/products\/himax-hiquad-24vdc-1ru-rack-circulation-fan-unit-hima-k9203","provider":"SpareOil Automation","version":"1.0","type":"link"}