Fans 424JH 24V 6.9W 4028 4cm case fan

424JH 24 V high-speed case fan

The Fans 424JH is a 4 cm DC cooling fan rated at 24 V and 6.9 W. It is built by ebmpapst for equipment that demands strong airflow in a very small frame. The fan suits industrial, medical and embedded systems where space is tight and reliability matters. Buyers receive a new unit ready for integration into custom enclosures or replacement jobs.

Who this suits and who should look elsewhere

Engineers designing rail vehicles, medical devices, new-energy platforms or hotel automation gear will find the 4028 rpm speed and 24 V supply a direct fit. Builders who need a standard 12 V PC case fan, a larger 120 mm form factor or PWM speed control cannot use this model. The fixed high-speed operation also rules out silent desktop builds or any application that requires variable airflow.

Behaviour under sustained load

At 6.9 W the motor draws steady current from a 24 V rail, so thermal output remains constant during continuous duty. The ebmpapst construction is rated for long-running industrial cycles rather than short desktop bursts. No speed sensor or control wire is present, so the fan runs at full 4028 rpm whenever power is applied. System integrators must ensure the enclosure can exhaust the heat generated by non-stop operation.