BM-E Series Backward-curved centrifugal fan EC280/320/355/400/450/520/560/630mm

	Model	Voltage [V]	Frequency [Hz]	Speed [rpm]	Max Power [W]	Max Airflow [m3/h]	Noise [dB(A)]
	B280M.E001	230	50/60	2220	195	1660	69
	B320M.E005	230	50/60	2600	655	3250	76
	B320M.E001	230	50/60	2150	355	2730	72
	B320M.E002	230	50/60	2500	594	3332	75
	B320M.E003	230	50/60	2480	484	2541	70
	B320M.E013	230	50/60	2860	575	4386	79
	B320M.E020	230	50/60	2300	445	2862	70
	B355M.E001	230	50/60	2055	645	3915	74
	B400M.E004	230	50/60	1520	650	5215	75
	B400M.E009	380	50/60	2060	1480	6700	77
	B450M.E001	380	50/60	1725	1340	7455	79
	B520M.E001	380	50/60	2200	4260	12830	87.9
	B520M.E002	380	50/60	1700	2400	9815	83.9
	B520M.E028	380	50/60	2200	5623	13304	92.5
	B560M.E003	380	50/60	1620	3660	15275	86.5
	B560M.E007	380	50/60	1500	2990	14170	82.5
	B630M.E005	380	50/60	1380	3850	20100	87.2
	B630M.E004	380	50/60	1260	2970	18330	83.4

Airflow-static pressure curved (P-Q)

Airflow-power curved (N-Q)

This series features 230V/380V dual-voltage EC backward-curved centrifugal fans, highlighting ultra-high airflow, superior efficiency, wide frequency compatibility, stable durability and standardized installation. Covering small-scale to industrial-grade ultra-high airflow applications, they are the high-end solution for HVAC, fresh air systems, industrial cooling and large equipment ventilation.

1.Intelligent and High-efficiency EC Drive for Maximum Energy Saving

Adopts EC electronically commutated motors, delivering higher efficiency, lower loss and less heat than traditional AC fans, greatly reducing power costs for long-term operation. Power range: 195W–5623W, ensuring efficient and stable performance under all working conditions without overload risk.

2. Dual Voltage & Wide Frequency Compatibility for Global Use

Supports dual voltage 230V/380V and dual frequency 50/60Hz, compatible with power grids worldwide. Directly applicable for equipment export, factories, buildings and large units without extra modification.

3. Ultra-wide Airflow Range for Industrial-grade Strong Air Supply

Airflow range: 1660–20100m³/h, covering everything from small units to industrial-grade large ventilation systems. Optimized aerodynamic backward-curved impeller provides high static pressure and low loss, maintaining high-efficiency output even in complex air ducts and high-resistance systems.

4.Complete Models for Highly Flexible Selection

Covers the full-size series: EC280/EC320/EC355/EC400/EC450/EC520/EC560/EC630, with speed range 1260–2860rpm, able to precisely match different requirements for airflow, static pressure and installation space.

5. Low-noise & Stable Operation for Eco-friendliness

Optimized air path and dynamic balance design keep noise under control even at high airflow, suitable for noise-sensitive scenarios such as equipment rooms, commercial complexes and industrial workshops.

6. Standardized Structure for Quick and Easy Installation

Unified standard dimensions and mounting holes ensure robust structure and strong universality, facilitating equipment integration, replacement and mass assembly.

7.High Reliability & Long Service Life for Continuous Operation

Backward-curved impeller is dust-resistant and self-cleaning with high dynamic balance accuracy for the motor and impeller. Capable of 7×24h long-term continuous operation, with strong stability and extremely low maintenance costs.