San Ace Reversible Flow Fan 136RFA28
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Catalog excerpts

San Ace Reversible Flow Fan 136RFA28 - 1

Reversible Flow Fan ■ Features High Airflow and High Static Pressure This fan delivers a maximum airflow of 2.10 m3/min and a maximum static pressure of 285 Pa.(1) Compared to our current model,(2) the maximum static pressure has increased by approximately 2.8 times. Fewer Fans Required The fan's speed and blowing direction can be freely controlled by a PWM signal. By replacing multiple conventional fans with a single unit, this fan can contribute to cost reduction and space saving. Moreover, noise reduction or high efficiency can also be achieved by appropriately controlling fan speed. Same Level of Blowing Performance in Either Direction Almost equivalent airflow and static pressure performance can be obtained in either blowing direction. This eliminates the need to take the performance difference between two blowing directions into account in designing systems. (1) The values are for models 9RFA1312P3G001 and 9RFA1324P3G001 when blowing in the forward direction. (2) Current model: ø136 × 28 mm San Ace 136RF 9RF type Reversible Flow Fan (model: 9RF1312P3H001) The models listed below have pulse sensors with PWM control function. Model no. Rated Operating Airflow direction voltage voltage range [V] [V] Reverse Forward Operating Expected life temperature [h] [°C] ■ Common Specifications □ Material □ Expected life Frame: Plastic (Flammability: UL 94V-0), Impeller: Plastic (Flammability: UL 94V-0) Refer to specifications (L10 life: 90% survival rate for continuous operation in free air at 60°C, rated voltage) Expected life at 40°C is for reference only. □ Motor protection function Locked rotor burnout protection, Reverse polarity protection 50/60 Hz, 500 VAC, for 1 minute (between lead wire conductors and frame) 10 MΩ or more with a 500 VDC megger (between lead wire conductors and frame) □ Sound pressure level (SPL) At 1 m away from the air inlet Refer to specifications (Non-condensing)

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San Ace Reversible Flow Fan 136RFA28 - 2

■ Airflow - Static Pressure Characteristics Operating voltage range Forward (inch H2O) (Pa) Static pressure Static pressure Static pressure Static pressure Static pressure

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San Ace Reversible Flow Fan 136RFA28 - 3

■ PWM Duty - Speed Characteristics Example Voltage: 12/24 VDC PWM frequency: 25 kHz Forward Reverse ■ PWM Input Signal Example Input signal waveform VIH = 4.75 to 5.25 V VIL = 0 to 0.4 V PWM duty cycle (%) = T ×100 PWM frequency 25 (kHz) = T Current source (Isource) = 1.0 mA max. (when control voltage is 0 V) Current sink (Isink) = 1.0 mA max. (when control voltage is 5.25 V) VIL When the PWM control terminal is open, the fan speed is the same as the speed at 100% PWM duty cycle. Either a TTL input or open collector/drain input can be used for the PWM input signal. ■ Example of Connection...

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San Ace Reversible Flow Fan 136RFA28 - 4

Airflow direction (Forward) (3) 8 12 Airflow direction (Reverse) Rotating direction (Forward) Rotating direction (Reverse) ■ Reference Dimensions of Mounting Holes and Vent Opening (unit: mm) Impeller side, Nameplate side ●Please read the "Safety Precautions" on our website before using the product. ●The products shown in this catalog are subject to Japanese Export Control Law. Diversion contrary to the law of exporting country is prohibited. ●For protecting fan bearings against electrolytic corrosion near strong electromagnetic noise sources,  we provide effective countermeasures such as...

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