17251D DC axial flow fan
17251D DC Axial Flow Fan — 172.5 × 150.5 × 51.0 mm
✯ Structural Features
Frame & Blade Material
- Frame: Aluminum Alloy
- Impeller: Engineering Plastic
Bearing Structure: Dual Ball Bearings
Weight: 750.0 g
✯ Mechanical Dimensions
✯ Airflow Performance Curve
Basic Fan Specifications
| Model | Voltage (V) | Operating Voltage Range (V) | Power (W) | Speed (RPM) | Airflow (m³/h) | Static Pressure (Pa) | Noise (dBA) | Curve |
| J172FZW245-51D00 | 24 | 16.0~27.6 | 28.7 | 4500 | 491.6 | 244.2 | 67.4 | ① |
| J172FZW270-51D00 | 24 | 16.0~27.6 | 108.0 | 7000 | 764.7 | 591.0 | 77.1 | ② |
| J172FZW295-51D00 | 24 | 16.0~27.6 | 270.0 | 9500 | 1203.8 | 1562.6 | 83.7 | ③ |
| J172FZW345-51D00 | 28 | 18.0~32.0 | 28.7 | 4500 | 491.6 | 244.2 | 67.4 | ① |
| J172FZW370-51D00 | 28 | 18.0~32.0 | 108.0 | 7000 | 764.7 | 591.0 | 77.1 | ② |
| J172FZW395-51D00 | 28 | 18.0~32.0 | 270.0 | 9500 | 1203.8 | 1562.6 | 83.7 | ③ |
- Notes: Available voltage options: 5V, 12V, 24V, 28V, 48V
- In the model number, the second digit from the end “0” indicates the signal function,
and the last digit “0” indicates the environmental performance rating. - Users may select according to actual requirements based on Table 1 and Table 2.
Table 1: Signal Functions
| Signal function code | 0 | 1 | 2 | 3 | 4 | 5 |
| Function Description | No Function | PWM Duty Cycle Speed Control | High-Level Fault Alarm | Tachometer (RPM) Feedback | PWM Duty Cycle Control + High-Level Fault Alarm | PWM Duty Cycle Control + Tachometer Feedback |
Table 2: Environmental Adaptability Ratings
| Code | Application Standard | 0 (Ground / Vehicle-Mounted) | 1 (Marine / Naval Applications) | 2 (Airborne Applications) |
| High Temperature | GJB150.3A-2009 | Storage: 80°C, Operation: 75°C | Storage: 95°C, Operation: 85°C | |
| Low Temperature | GJB150.4A-2009 | Storage: –50°C, Operation: –40°C | Storage: –60°C, Operation: –55°C | |
| Rain / Water Ingress | GJB150.8A-2009 | Enhanced, 1 hour per surface | ||
| Damp Heat (Humidity) | GJB150.9A-2009 | Cyclic humidity: 30°C–60°C, RH 95%±5%, 24h per cycle, 10 cycles | ||
| Fungus Resistance | GJB150.10A-2009 | Fungus group 1 or group 2, 28 days | ||
| Salt Spray | GJB150.11A-2009 | Neutral salt spray 192 hours | Acidic Salt Spray, 192 hours | |
| Sand & Dust | GJB150.12A-2009 | Blowing sand and dust test | ||
| Acceleration | GJB150.15A-2009 | Three-axis, six-direction;
Performance test level: 9g, Structural test level: 13.5g |
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| Shock | GJB150.18A-2009 | Three-axis, six-direction, 18 shocks total, 20g | Three-axis, six-direction, 18 shocks total, 40g | |
| Low Air Pressure | GJB150.2A-2009 | / | 6.3kPa | |
| Acidic Atmosphere | GJB150.28A-2009 | / | Spray 2h + storage 22h per cycle, 3 cycles | |
| EMC (Electromagnetic Compatibility) | GJB151B-2013 | Comply with RE102 and CE102 | ||
| Power Supply Characteristics | GJB181B-2012 | / | Abnormal Overvoltage 80V/50ms | |
| Vibration | GJB150.16A-2009 | |||
