EC fans help your equipment become more outstanding
It adopts advanced electronic commutation technology and the bracket can be selected by yourself to perfectly adapt to various needs.


EC Backward-curved Centrifugal Fan
Product Characteristics:
EC Backward-curved Centrifugal Fan, diameter of the fan ranges from 133mm to 630mm, The fan is made of plastic material (≤ 250mm) or metal material (≥280mm).The performance of the standard version basically covers the requirements of conventional applications. Product certification: CCC,on demand certification CE,UL.
Component of product:
Backward-curved centrifugal fan,EC external rotor motor, Collecting ring
Working environment and applicable conditions:
Power supply: Single-phase 220V~240V,50/60 Hz
Three-phase 380V~460V, 50/60 Hz
Control mode: VSP (on-demand VSP/PWM, RS485)
Protection level: lP 54
Insulation class: F
Bearings: maintenance-free bearings
Operating temperature: -25~+60°C
Relative humidity: ≤95%
Altitude:≤1000m
Applications:
It is widely used in air purification, ventilation system,HVAC,refrigeration,rail transit and electric Max Power communication. etc.
EC fan features
1
Energy savingLow carbon and energy saving, low installation cost
2
IntelligentVSP (PWM, RS485, etc. can be customized on demand)
3
Maintenance-freeMaintenance-free ball bearings
Fan Selection Process
1. Confirm operating conditions: airflow, static pressure.
2. Confirm fan type and installation space dimensions.
3. Confirm the fan’s usage environment, electrical environment, etc.
4. Based on points 1, 2, and 3, preliminarily filter the suitable standard product specifications.
5. Confirm control methods, installation methods, etc.
6. Confirm accessories, wiring, connectors, etc.
7. Confirm certification requirements.
8. Based on points 5, 6, and 7, verify whether the filtered products meet the requirements.
9. If the products are confirmed feasible after point 8, place an order directly with the sales manager. Otherwise, discuss corresponding requirements with the sales manager, establish a development plan, and proceed with modification and customization after cooperation is established.
2. Confirm fan type and installation space dimensions.
3. Confirm the fan’s usage environment, electrical environment, etc.
4. Based on points 1, 2, and 3, preliminarily filter the suitable standard product specifications.
5. Confirm control methods, installation methods, etc.
6. Confirm accessories, wiring, connectors, etc.
7. Confirm certification requirements.
8. Based on points 5, 6, and 7, verify whether the filtered products meet the requirements.
9. If the products are confirmed feasible after point 8, place an order directly with the sales manager. Otherwise, discuss corresponding requirements with the sales manager, establish a development plan, and proceed with modification and customization after cooperation is established.
| Model | Curve | Voltage [V] | Frequency [Hz] | Speed [rpm] | Max Power [W] | Max Airflow [m³/h] | Noise [dB(A)] |
| EC133A1 | A | 230 | 50/60 | 5220 | 88 | 450 | 68 |
| EC175A1 | A | 230 | 50/60 | 5030 | 166 | 880 | 69 |
| EC190A1 | A | 230 | 50/60 | 4230 | 150 | 810 | 70 |
| EC225A1 | A | 230 | 50/60 | 3060 | 215 | 1455 | 71.1 |
| EC250A1 | A | 230 | 50/60 | 3170 | 295 | 1505 | 73.1 |
| EC250B1 | A | 230 | 50/60 | 3920 | 618 | 2166 | 75 |
| EC280A1 | A | 230 | 50/60 | 2220 | 195 | 1660 | 69 |
| EC280B1 | A | 230 | 50/60 | 3100 | 732 | 3916 | 76 |
| EC280C1 | A | 380 | 50/60 | 3450 | 1450 | 4075 | 79 |
| EC310A1 | A | 380 | 50/60 | 2710 | 1510 | 5935 | 77 |
| EC320B1 | A | 230 | 50/60 | 2600 | 655 | 3250 | 76 |
| EC320A1 | B | 230 | 50/60 | 2150 | 355 | 2730 | 72 |
| EC320C1 | A | 380 | 50/60 | 3028 | 1494 | 5168 | 78 |
| EC355A1 | A | 230 | 50/60 | 2055 | 645 | 3915 | 74 |
| EC400D1 | A | 230 | 50/60 | 1520 | 650 | 5215 | 75 |
| EC400A1 | A | 380 | 50/60 | 2060 | 1480 | 6700 | 77 |
| EC400C1 | A | 380 | 50/60 | 2745 | 3585 | 8305 | 85 |
| EC400B1 | B | 380 | 50/60 | 2405 | 2700 | 7485 | 81 |
| EC450A1 | A | 380 | 50/60 | 1725 | 1340 | 7455 | 79 |
| EC450C1 | A | 380 | 50/60 | 2550 | 5350 | 15202 | 95 |
| EC450B1 | B | 380 | 50/60 | 2250 | 3977 | 13964 | 92 |
| EC520A1 | A | 380 | 50/60 | 2200 | 4260 | 12830 | 87.9 |
| EC520B1 | B | 380 | 50/60 | 1700 | 2400 | 9815 | 83.9 |
| EC520C1 | A | 380 | 50/60 | 2200 | 5623 | 13304 | 92.5 |
| EC560A1 | A | 380 | 50/60 | 1620 | 3660 | 15275 | 86.5 |
| EC560B1 | B | 380 | 50/60 | 1500 | 2990 | 14170 | 82.5 |
| EC560C1 | A | 380 | 50/60 | 1770 | 5570 | 20710 | 86.5 |
| EC630A1 | A | 380 | 50/60 | 1380 | 3850 | 20100 | 87.2 |
| EC630B1 | B | 380 | 50/60 | 1260 | 2970 | 18330 | 83.4 |


About Xinzhehao
Dezhou Xinzhehao Air Conditioning Fan Co., Ltd. is a comprehensive enterprise focusing on the research and development, production, sales, installation and after-sales service of air conditioning equipment and ventilation equipment. The company was established on November 27, 2015. The company’s business scope covers the research and development, production, sales, installation and maintenance of air conditioning equipment and parts, ventilation equipment and parts, electromechanical equipment, purification equipment, water tanks, cooling towers, etc.
Our factory insights
As a company dedicated to providing high-quality air conditioning and ventilation equipment, Dezhou Xinzhehao Air Conditioning Fan Co., Ltd. always adheres to customer demand-oriented, and continuously improves the technical level of products and service quality.








Certification
During the production process, the company strictly follows the ISO9001 international quality management system standards to ensure that each product meets high standards of quality requirements.








