BN-A Series Backward-curved Centrifugal Fan AC133/175/190/225/250mm

	Model	Voltage [V]	Frequency [Hz]	Speed [rpm]	Max Power [W]	Max Airflow [m3/h]	Noise [dB(A)]
	B133P.A001	230	60	3453	34	293	58.7
		230	50	2904	33	249	57.9
	B175P.A001	230	50	2775	43.4	480	60.8
	B175P.A005	110	60	3044	54.3	562	61.1
	B175P.A009	230	50	2770	46	508	63.5
	B190P.A016	230	50	2782	61	541	64.9
	B190P.A030	230	60	2920	70	570	70
	B190P.A004	110	60	3190	88	522	68.5
	B190P.A001	230	50	2700	64	438	65.2
	B190P.A025	230	50	2780	61	541	67.5
	B220P.A002	230	60	2780	142	980	67.1
		230	50	2530	112	900	66.6
	B225P.A001	230	50	2655	148	1110	68.6
	B225P.A003	110	60	2905	202	1215	71.3
	B225P.A004	460	60	3095	242	1328	71.8
		380	50	2658	143	1142	68.6
	B225P.A018	230	60	2925	227	1293	71
	B250P.A001	230	50	2700	200	1400	72.7
	B250P.A014	380	50	2700	198	1402	72.5

DIMENSION

Airflow-static pressure curve (P-Q)

Airflow-power curve (N-Q)

Core Selling Points

       This series is AC backward-curved centrifugal fans, covering mainstream models from φ133 to φ250. They are compatible with multi-voltage and multi-frequency power supplies, featuring large air volume, low noise, high efficiency and stable reliability, suitable for equipment heat dissipation, ventilation, air conditioning, purification and other applications.

1.High-efficiency Backward-curved Design

Professional backward-curved blade structure ensures smooth airflow and higher efficiency, with no power overload for safer operation. Air volume ranges from 249 to 1402m³/h with sufficient static pressure, meeting high-performance requirements of ventilation, heat dissipation, refrigeration, purification and other scenarios.

2.Wide Voltage & Dual Frequency, Global Applicable

Supports multiple voltages including 110V/230V/380V/460V and dual frequencies of 50/60Hz, directly applicable to domestic and overseas equipment. Unified specifications reduce inventory costs.

3.Low Noise & Stable, Comfortable Operation

Optimized air duct and impeller design reduce noise to as low as 57.9dB(A). It remains quiet and stable even with large air volume, ideal for precision equipment and office environments with high silence requirements.

4.Complete Specifications & Easy Installation

Covers full-size models from φ133 to φ250 with standardized mounting holes. Compact structure and strong universality make replacement, upgrade and equipment integration convenient.

5.Stable & Durable, Long-term Reliability

Strong rotating speed and robust structure enable long-term continuous operation with low loss and long service life, suitable for high-load scenarios such as industry, HVAC, cabinet cooling and air conditioning.