Description
The Sunon A1259-MBL.TC.N.GN (also known as A1259MBLTCNGN) is a heavy-duty Ø254 x 89 mm (10.0 x 3.5 in) round AC tubeaxial fan engineered for high-throughput enclosure ventilation. Powered by Sunon’s reliable capacitor-run alveolate motor on 115 VAC (50/60 Hz), it delivers up to 425 CFM (722.1 m³/h) at 1400 RPM (50 Hz) and 500 CFM (849.5 m³/h) at 1600 RPM (60 Hz) while drawing 20 W to 23 W. Structural integrity is ensured through a rugged die-cast aluminum frame paired with a UL 94V-0 polycarbonate impeller and dual precision ball bearings. Electrical safety and connection reliability are reinforced by an internal thermal cutout, 1800 VAC dielectric strength, and integrated quick-connect faston terminal lugs.
Key Features
- Alveolate Motor Architecture: Advanced capacitor-start motor design optimizes magnetic flux distribution for low heat dissipation and stable continuous operation.
- Die-Cast Aluminum Casing: Rugged round alloy frame prevents acoustic resonance and resists severe mechanical stress in heavy industrial environments.
- Precision Ball Bearings: Dual shielded precision ball bearing assembly delivers sustained rotational stability across extreme -10°C to +70°C temperatures.
- Thermal Cutout Safety: Integrated thermal protector prevents winding over-temperature conditions during forced locked-rotor or abnormal voltage supply states.
- Terminal Lug Interface: Robust two-pin male terminal interface provides vibration-resistant electrical connections without prone flying lead wire harnesses.
Technical Specifications
| Manufacturer | Sunon |
|---|---|
| Manufacturer Part Number (MPN) | A1259-MBL.TC.N.GN |
| Alternate Part Number | A1259MBLTCNGN |
| Sunon Specification Number | A25000410G-00 |
| Product Series | A Series |
| Product Category | AC Axial Fans |
| Fan / Component Type | Round Tubeaxial AC Cooling Fan |
| Phase & Supply Type | Single-Phase AC |
| Rated Voltage | 115 VAC |
| Operating Voltage Range | 75 VAC to 125 VAC |
| Starting Voltage | 75 VAC (at 25°C Power On/Off) |
| Frequency | 50 / 60 Hz |
| Speed (RPM) | 1400 RPM (50 Hz) / 1600 RPM (60 Hz) ± 10% |
| Power Rating | 20 W (50 Hz) / 23 W (60 Hz) |
| Rated Current | 0.23 A (50 Hz) / 0.23 A (60 Hz) |
| Motor Type | Capacitor-Run Alveolate Motor |
| Airflow | 425 CFM (722.1 m³/h) at 50 Hz / 500 CFM (849.5 m³/h) at 60 Hz |
| Static Pressure | 0.27 in H₂O (67.2 Pa) at 50 Hz / 0.31 in H₂O (77.2 Pa) at 60 Hz |
| Noise Level | 54 dB(A) (50 Hz) / 57 dB(A) (60 Hz) |
| Airflow Direction | Intake over struts, exhaust toward label side |
| Dimensions | Ø254 mm × 89 mm (Ø10.0 in × 3.5 in) |
| Housing Material | Die-Cast Aluminum |
| Impeller Material | Polycarbonate (PC), UL 94V-0 Rated |
| Bearing Type | Precision Ball Bearing System |
| Direction of Rotation | Counter-Clockwise (CCW) viewed from front of fan blade |
| Termination | 2 Terminals (Faston Quick-Connect Tabs) |
| Motor Protection | Thermal Protected (Internal Thermal Cutout) |
| Insulation Resistance | 500 MΩ minimum at 500 VDC |
| Dielectric Strength | 1800 VAC for 1 second |
| Operating Temperature | -10°C to +70°C (14°F to 158°F) |
| Storage Temperature | -40°C to +70°C (-40°F to 158°F) |
| Weight | 2.30 kg (5.07 lbs / 2300 g) |
| Standards & Compliance | UL, CUR, TÜV, CE, UKCA, RoHS 2011/65/EU |
Applications
The Sunon A1259-MBL.TC.N.GN provides high-volume heat extraction across industrial automation control cabinets, large variable frequency drive (VFD) bays, and high-power inverter enclosures. It is extensively installed in telecommunications power plants, centralized UPS battery backup rooms, and high-capacity transformer cooling assemblies where round ducting or chassis apertures require sustained static pressure. Field service technicians and OEM equipment builders also specify this model for commercial refrigeration condensers, theatrical stage lighting arrays, and metalworking CNC control consoles.
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