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·Size / voltage: 120 × 120 × 38 mm, 48 VDC (operating range 35–57 VDC).
·Airflow / noise: 172 m³/h at 2,600 rpm, 40.4 dBA.
·Power: 4.32 W rated (max 5.76 W), 0.09 A rated (max 0.12 A).
·Bearings / life: dual ball bearings, 70,000 h at 25 °C.
·Frame and impeller: PBT, UL94V-0.
·Operating range: -10 to +70 °C, 15–90 % RH. CE marked.
The LEIPOLE F2E-120B-48 is a 120 × 120 × 38 mm axial fan for 48 VDC supplies. It moves up to 172 m³/h at 2,600 rpm with a noise level of 40.4 dBA, draws only 4.32 W at rated voltage and runs on two ball bearings rated for 70,000 hours at 25 °C. It is a compact, low-power way to ventilate control cabinets, power supplies and other DC-powered electronics, and OEM or private-label versions are supported.
| Component | Specification | Why it matters |
|---|---|---|
| Frame | PBT, UL94V-0 | Light and flame-retardant for use inside electrical enclosures |
| Impeller | PBT, UL94V-0, 4-pole motor | Stable airflow at 2,600 rpm |
| Bearing | Two ball bearings | Long life under continuous duty |
| Lead wires | UL 1007, 24 AWG, 330 mm, no connector | Flying leads: fit your own connector or terminal. Black is negative, red is positive |
| Rotation | Anticlockwise, viewed from the blade side | Check the airflow direction before mounting |
| Protection | IP22 | Suited to the inside of a closed enclosure |
| Setting | Typical use |
|---|---|
| Control cabinets with a 48 V DC supply | Internal air circulation and exhaust for PLC, relay and I/O sections |
| Inverters and DC power supplies | Cooling for power modules and rectifier sections |
| UPS and energy-storage cabinets | Airflow through power-module bays on a DC bus |
| Telecom and automation equipment | Compact forced-air cooling where a 120 mm opening is available |
Pick the fan by the airflow your enclosure needs. Use the LEIPOLE airflow calculator to estimate it: cabinet cooling fan selection tool. Then send us your supply voltage, cut-out size and airflow target and we will confirm the model.
| Model | Frame | Rated voltage | Max airflow | Max static pressure | Noise |
|---|---|---|---|---|---|
| F2E-120B-48 | 120 × 120 × 38 mm | 48 VDC | 172 m³/h | 7.07 mmH₂O (about 69 Pa) | 40.4 dBA |
The full parameter list is in the Technical Data tab.
The F2E-120B-48 carries CE marking per its spec sheet. Frame, impeller and bobbin are PBT rated UL94V-0.
What supply voltage does the F2E-120B-48 use?
It is rated 48 VDC, with an operating range of 35 to 57 VDC.
How much air does it move?
Up to 172 m³/h (2.86 m³/min) at rated voltage, with up to 7.07 mmH₂O of static pressure.
Does it have speed control or a tachometer output?
No. This model is a fixed-speed fan with auto start and soft start; speed control and tachometer output are not listed on its spec sheet.
Does it come with a connector?
No. It has 330 mm flying leads without a connector.
Can I order a custom or private-label version?
Yes. LEIPOLE supports OEM and ODM orders, including private-label versions. There is no MOQ and the standard lead time is 45 days.
Request a quote, or send us your cabinet data and we will recommend the right fan.
| Item | F2E-120B-48 | Condition |
|---|---|---|
| Dimensions | 120 × 120 × 38 mm | |
| Bearing type | Two ball bearings | |
| Rated voltage | 48 VDC | |
| Operating voltage | 35–57 VDC | |
| Start-up voltage | 35 VDC | 25 °C, power on/off |
| Rated current | 0.09 A (max 0.12 A) | Rated voltage, 25 °C, 65 % RH, measured after 5 minutes |
| Rated power | 4.32 W (max 5.76 W) | Rated voltage, 25 °C, 65 % RH |
| Rated speed | 2,600 rpm ± 10 % | Rated voltage |
| Max airflow | 2.86 m³/min (172 m³/h, 101.04 CFM) | AMCA standard, rated voltage |
| Max static pressure | 7.07 mmH₂O (0.28 inH₂O) | AMCA standard, rated voltage |
| Noise level | 40.4 dBA (max 44.0 dBA) | 1 m from the fan intake, rated voltage, ISO 3745, background below 18 dB |
| Life expectancy | 70,000 hours | 25 °C |
| Poles | 4 | |
| Rotation | Anticlockwise, viewed from the blade side | |
| Other features | Auto start, soft start | |
| Locked-rotor protection | Auto power off after 1–3 s at rated voltage; restart attempt every 2–6 s; no damage after 72 h locked | |
| Polarity protection | Open circuit when Vcc and GND are reversed | |
| Insulation resistance | At least 10 MΩ | 500 VDC, between housing and lead wires |
| Dielectric strength | Withstands 500 VAC for 1 minute (1 mA) | Between housing and lead wires |
| Waterproof level | IP22 | |
| Frame / impeller / bobbin | PBT, UL94V-0 | |
| Lead wires | UL 1007, 24 AWG, 330 ± 10 mm, no connector | Black (−), red (+) |
| Operating temperature / humidity | -10 to +70 °C, 15–90 % RH | |
| Storage temperature / humidity | -40 to +85 °C, 15–90 % RH | |
| Packing | 36 pcs per carton | |
| Safety approval | CE |
