JR120 — 120mm DC rib fans

Explore the JR12025 Ø120 × 25 mm DC centrifugal blower fan, with 12, 24 and 48 VDC configurations, mechanical drawings, performance curves and a downloadable datasheet.

Model selection

Specification	JR120 series
Family	JR120 DC rib fans (Frameless bracket fans)
Model series	JR12025
Frame / size	Ø120 × 25 mm — JR12025
Power supply	12 / 24 / 48 VDC
Frame / impeller	Thermoplastic PPS frame, UL 94V-0; plastic impeller, UL 94V-0
Bearing system	Two ball bearings
Life expectancy	50,000 hrs, continuous operation at 25°C, 65% RH

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Include DC supply voltage, required airflow, static pressure, mounting space, quantity and control requirements.

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Typical Applications

JR12025 provides cooling and ventilation for industrial systems, power equipment, laboratory instruments and air-purification devices.

Industrial & IPC: Cooling for high-power embedded IPC, industrial controllers and servo control cabinets; power supply units: cooling for high-power switching power supplies and UPS modules.
New Energy & Telecom: Thermal management for energy-storage battery modules, BMS cabinets and on-board chargers; ventilation for compact 5G communication units, network servers and high-power gateway enclosures.
Medical & Laboratory: Heat dissipation for medium-sized analytical lab instruments, PCR and testing equipment.
Projection & Air Purification: Thermal solution for laser engineering projectors; air-purification equipment, fresh-air modules and compact dust-removal devices.

120MM DC RIB FAN · DC POWER

JR12025 — Ø120 × 25 mm

JR12025 is a DC centrifugal blower fan with three electrical configurations for 12, 24 and 48 VDC supplies. Rated speed is 3,500 RPM, with maximum airflow of 63.2 CFM and maximum static pressure of 14.55 mmH₂O.

JR12025 DC centrifugal blower fan product photo — JR12025 DC rib fan.

General specifications

Frame material: Thermoplastic PPS, UL 94V-0.
Impeller: Plastic, UL 94V-0.
Bearing system: Two ball bearings.
Life expectancy: 50,000 hours, continuous operation at 25°C and 65% RH.
Weight: 161.2 g.

Available functions

Motor protection: RP ●, SS ●, LP ●, CL ●, OVP ○.
Signal outputs: FG ●, RD ●, RDB ●, LD ●.
Speed control modes: PWM ●, TC ●, VC ●, CC ●, CS ●.

Function markers match the datasheet. Confirm function availability for the selected configuration before ordering.

Dimensions & performance

JR12025 mechanical drawing with mounting dimensions and tolerances — Series size: Ø120 × 25 mm. Drawing shows an outside diameter of 120 ± 0.5 mm and a thickness of 25.8 ± 0.5 mm. Mounting dimensions and tolerances as shown.

JR12025 airflow and static pressure curve at 3500 RPM — Airflow – static pressure curve at 3,500 RPM.

Performance data

JR12025 electrical configurations.
Model	Rated voltage	Operating voltage range	Rated current	Rated input power	Speed	Max. airflow	Max. static pressure	Noise
JR12025H12	12 VDC	7.0–13.5 VDC	1.00 A	12.00 W	3,500 RPM	63.2 CFM	14.55 mmH₂O	54.7 dB(A)
JR12025H24	24 VDC	18–26.5 VDC	0.48 A	11.52 W	3,500 RPM	63.2 CFM	14.55 mmH₂O	54.7 dB(A)
JR12025H48	48 VDC	36–54 VDC	0.23 A	11.04 W	3,500 RPM	63.2 CFM	14.55 mmH₂O	54.7 dB(A)

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