EC MOTOR
Efficient motor, adjustable speed
An electronically commutated motor drives the backward-curved centrifugal impeller. Rated for continuous operation, with automatic restart after thermal protection trips.
Centro EC Fan 250mm In Line Centrifugal Tube Extractor with EC Motor Duct Mounting 10"
Em stock
Apenas resta(m) 5
SKU
CENTRO-EC-250
BIM Objects
User Guides & Data Sheets
Commercial & Residential | Supply & Extract | 1-phase EC
- 250 mm circular duct connection for supply or extract ventilation.
- Up to 1,250 m³/h (347 l/s) maximum airflow with a high-efficiency EC motor.
- External 0–10 V speed control via an EC controller or BMS; controls supplied separately.
- 265 mm long, 4.3 kg with an impact-resistant ABS casing and 1-phase supply.
- Two mounting brackets included for floor, wall or ceiling fixing.
Commercial & residential ventilation
Blauberg CENTRO EC 250 250 mm Inline Centrifugal Fan
250 mm connections. Up to 1,250 m³/h.
CENTRO EC 250 is an inline centrifugal fan for 250 mm supply or extract ductwork. Its high-efficiency, 165 W EC motor delivers maximum airflow of 1,250 m³/h (347 l/s), with external 0–10 V speed control for commercial and residential ventilation systems.
The fan measures 265 mm in overall length and weighs 4.3 kg. Two mounting brackets are supplied for floor, wall or ceiling fixing. An external EC controller or compatible BMS provides the speed-control signal; controls and ductwork are separate.
250Model
1,250 m³/hMaximum airflow (347 l/s)
250 mmCircular duct connection
0–10 VSpeed control signal
Inline centrifugal fans
EC motor efficiency with external speed control
0–10 V INPUT
Connect to your controls
Accepts a speed signal from an external EC controller, sensor controller or building management system. Controls are supplied separately.
ABS CASING
Impact-resistant, corrosion-free casing
The moulded ABS housing has circular duct connections and an external terminal box. Unit protection is IPX4; motor protection is IP44.
MOUNTING
Brackets included
Two mounting brackets support floor, wall or ceiling fixing. The fan can be installed horizontally or vertically, following the user guide.
EC centrifugal performance for 250 mm ducts
CENTRO EC 250 reaches a maximum airflow of 1,250 m³/h, above the smaller connection sizes in this range. Its backward-curved impeller is driven by a 165 W EC motor rated for continuous operation. The published electrical, acoustic and dimensional data below support specification for general clean-air supply or extract ventilation.
View CENTRO EC 250 technical data265 mm long, with brackets supplied
CENTRO EC 250 is 265 mm long overall and weighs 4.3 kg. The two supplied brackets provide floor, wall or ceiling fixing along the duct route, with horizontal or vertical mounting. The external terminal box and removable cover need to remain accessible after the ductwork is installed.
View CENTRO EC 250 technical data
The 250 mm model, with brackets included
Order CENTRO-EC-250 for the standard 250 mm EC fan. The box contains the fan, two mounting brackets, fixing screws and dowels, and the user guide. The external controller, any sensors and the ductwork are supplied separately.
View CENTRO EC 250 technical data
Control the airflow during the working day
A workplace may need different ventilation levels through the day. A compatible BMS can send CENTRO EC 250 different 0–10 V speed settings to follow that schedule. Alternatively, an external sensor controller can vary speed with changing conditions. The fan does not include a timer or room sensor.
Talk to us about your projectControls & installation
How the 0–10 V speed control works
A separate EC speed controller sets the fan speed through its 0–10 V input. For automatic adjustment, a compatible sensor controller or building management system (BMS) can supply that signal instead. For example, an external CO₂ or humidity controller can vary speed as conditions change. The standard fan has no built-in room sensor or user speed control.
Installation essentials
- 1-phase, 50/60 Hz mains supply. Electrical installation must follow the rating label and EC wiring diagram and be carried out by a qualified electrician.
- Horizontal installation requires at least 1 m of straight intake duct. For vertical installation, fit the intake-side protective hood specified in the user guide.
- Follow the airflow arrow on the casing and leave access to the terminal box and removable cover.
Inspection and maintenance
The EC motor has thermal protection with automatic restart. Isolate the electrical supply before opening or cleaning the fan. Inspect and clean it at least every six months, following the user guide.
CENTRO EC 250 technical data
| Specification | CENTRO EC 250 |
|---|---|
| Model | CENTRO-EC-250 |
| Duct connection | 250 mm |
| Maximum airflow | 1,250 m³/h (347 l/s) |
| Motor | Electronically commutated (EC) |
| Speed control signal | 0–10 V |
| Electrical supply | 1-phase |
| Frequency | 50/60 Hz |
| Rated power | 165 W |
| Current | 1.1 A |
| Speed | 2600 rpm |
| Sound pressure at 3 m | 48 dBA |
| Transported air temperature | −25 to +60 °C |
| Ambient operating temperature | +1 to +40 °C |
| Unit ingress protection | IPX4 |
| Motor ingress protection | IP44 |
| Thermal protection | Automatic restart |
| Weight | 4.3 kg |
Maximum airflow is the catalogue maximum, not the airflow at every installed duty. Select from the fan curve at the required airflow and system resistance. Sound figures are sound pressure levels at 3 m; room noise depends on the duty and installation.
CENTRO EC 250 dimensions
| Specification | CENTRO EC 250 |
|---|---|
| D - duct connection | 250 mm |
| D1 | 340 mm |
| B | 354 mm |
| L - overall length | 265 mm |
| L1 | 30 mm |
| L2 | 30 mm |
| L3 | 40 mm |
D, D1, B, L, L1, L2 and L3 correspond to the manufacturer drawing. Dimensions are in mm. Weight is in kg. Allow additional room for connections and maintenance.
Technical advice
Technical support for CENTRO EC 250
For help choosing the fan or a compatible controller, send Blauberg UK the duct size, required airflow and system pressure. CENTRO EC is for general clean-air ventilation; specialist process extract, commercial kitchen grease extract and smoke control require a different fan selection.
Frequently Asked Questions
1. why are fans with EC motors more expensive?
Fans with EC motors, such as the Blauberg CENTRO-EC-250, tend to be more expensive due to their cutting-edge technology and superior efficiency. These motors offer significant energy savings and longer lifespans, which justify the higher initial cost.
2. Are EC motors more efficient?
Yes, EC motors are notably more efficient. For example, the Blauberg CENTRO-EC-250 features an EC motor that converts electrical energy into mechanical energy more effectively and adjusts its speed based on ventilation demand, reducing power consumption and lowering energy bills.
3. What is an EC motor and how does it work?
An EC (Electronically Commutated) motor combines the benefits of AC and DC motors. It uses electronic controls to adjust speed precisely according to ventilation needs, optimizing energy use and enhancing overall system performance. The Blauberg CENTRO-EC-250 utilizes this advanced motor technology to provide efficient ventilation.
4. What are the benefits of using an EC motor in inline fans?
EC motors in inline fans, like those in the Blauberg CENTRO-EC-250, provide several benefits, including higher energy efficiency, precise speed control, quieter operation, and longer lifespan due to fewer moving parts. These features contribute to a more effective and sustainable ventilation solution.
5. How do inline fans with EC motors improve air quality?
Inline fans with EC motors, such as the CENTRO-EC-250, enhance air quality by ensuring efficient and consistent ventilation. They remove stale air, pollutants, and excess moisture from indoor spaces, maintaining a healthier and more comfortable environment.
6. Are inline fans with EC motors suitable for residential use?
Absolutely. Inline fans with EC motors, like the Blauberg CENTRO-EC-250, are designed to operate quietly and efficiently, making them ideal for residential settings where noise levels and energy consumption are crucial considerations.
7. Can inline fans with EC motors be integrated into existing ventilation systems?
Yes, they can. The flexibility and compact design of the Blauberg CENTRO-EC-250 allow it to be seamlessly integrated into both new and existing ventilation setups without compromising performance or space.
8. What maintenance is required for inline fans with EC motors?
Inline fans with EC motors require minimal maintenance. Regular inspection and cleaning to remove dust and debris are usually sufficient to ensure optimal performance and longevity, thanks to their robust design and fewer moving parts. The Blauberg CENTRO-EC-250 is designed for low maintenance and high reliability.
9. How do I choose the right inline fan with an EC motor?
When choosing an inline fan with an EC motor, consider factors such as space size, required airflow rate, noise level, energy efficiency, and system compatibility. The Blauberg CENTRO-EC-250, with its high efficiency, low noise level, and versatile installation options, is a great example of what to look for. Consulting with a ventilation expert can also help you make an informed decision.
10. Are inline fans with EC motors more expensive than other types?
Inline fans with EC motors, like the Blauberg CENTRO-EC-250, are generally more expensive than those with traditional AC motors. However, their higher efficiency, lower energy consumption, and reduced maintenance costs provide significant long-term savings, making them a cost-effective choice over time.
| EAN Number | 5060503620667 |
|---|---|
| Impeller Type | Centrifugal |
| Motor Type | EC |
| Electrical Supply | 1 Phase 220/250 50/60Hz |
| Size | 250mm |
| Maximum Airflow Rate (l/s) | 117 |
| Maximum Airflow Rate (m3/h) | 420 |
| Duct Connection Size | 250mm Dia |
| Power (Watts) | 165w |