Systemair K125 EC Motor Duct Fan Single Phase - 125mm/5"
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Delivery and Warranty
Standard UK Mainland Delivery
If you are not in a rush, then we offer standard delivery and your order should be with you between 2-3 working days.
£6.95
Next Working Day Delivery
Place your order before 12pm Monday to Thursday and receive your order the next working day. Orders placed on Friday before 11am will be processed and delivered on Monday. (Excludes Sunday’s and Public Holidays)
£15.95
Nominated Day Delivery
We know sometimes you will need an order on a particular date in the future. Simply select this option at checkout and add what date you would like to receive the order. We will then contact you to confirm the date. If you need to change this order date then please contact us ASAP.
£15.95
Northern Ireland Delivery
We offer a flat fee rate for Northern Ireland orders, and all are 5-7 working day lead times.
£29.95
Scottish Highlands & Islands Delivery
We only offer a flat fee rate for Scottish Highland & Islands orders, and all are 5-7 working day lead times.
£45.95
Channel Islands Delivery
We only offer a flat fee rate for Channel Islands orders, and all are 5-7 working day lead times.
£45.95
Product Details
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Specifications
Product specifications
| Brand | Systemair |
| Model | K125 EC |
| Type | Circular inline duct fan (EC) |
| Duct connection | 125 mm |
| Airflow (max) | 482 m³/h |
| Motor | EC, high-efficiency, speed-controllable (230 V, 1~, 50 Hz) |
| Casing | Absolutely airtight seamed (Class C) |
| Control | Integral speed regulator (built-in potentiometer) |
| Protection | Integral thermal protection |
| Mounting | Any position |
Summary
See more specification See less specification
The Systemair K125 EC is part of Systemair's range of circular duct EC fans, notable for their economical use of energy and excellent ease of control. EC technology eliminates the slip losses in the motor and ensures it always runs at optimal load, so the fan is energy-efficient, extremely quiet and maintenance-free. It delivers up to 482 m³/h through 125 mm duct.
- Airflow up to 482 m³/h; 125 mm connection
- High-efficiency EC motor; speed-controllable, 230 V, 1~, 50 Hz
- Absolutely airtight, seamed casing (Class C)
- Integral speed regulator (built-in potentiometer) inside the terminal box for easy commissioning
- Integral thermal protection; low noise level
- Can be installed in any position; maintenance-free
Suitable for
- Energy-efficient duct-mounted extract and supply
- Commercial and domestic circular duct systems
Installation
Installs in any position; speed set via the built-in potentiometer in the terminal box. Should be installed on a suitable circuit by a qualified electrician.
Specifications
| Brand | Systemair |
| Model | K125 EC |
| Type | Circular inline duct fan (EC) |
| Duct connection | 125 mm |
| Airflow (max) | 482 m³/h |
| Motor | EC, high-efficiency, speed-controllable (230 V, 1~, 50 Hz) |
| Casing | Absolutely airtight seamed (Class C) |
| Control | Integral speed regulator (built-in potentiometer) |
| Protection | Integral thermal protection |
| Mounting | Any position |
Manuals & Guides
Systemair K125 EC Datasheet
Product Description
The Systemair K125 EC is part of Systemair's range of circular duct EC fans, notable for their economical use of energy and excellent ease of control. EC technology eliminates the slip losses in the motor and ensures it always runs at optimal load, so the fan is energy-efficient, extremely quiet and maintenance-free. It delivers up to 482 m³/h through 125 mm duct.
- Airflow up to 482 m³/h; 125 mm connection
- High-efficiency EC motor; speed-controllable, 230 V, 1~, 50 Hz
- Absolutely airtight, seamed casing (Class C)
- Integral speed regulator (built-in potentiometer) inside the terminal box for easy commissioning
- Integral thermal protection; low noise level
- Can be installed in any position; maintenance-free
Suitable for
- Energy-efficient duct-mounted extract and supply
- Commercial and domestic circular duct systems
Installation
Installs in any position; speed set via the built-in potentiometer in the terminal box. Should be installed on a suitable circuit by a qualified electrician.
Specifications
| Brand | Systemair |
| Model | K125 EC |
| Type | Circular inline duct fan (EC) |
| Duct connection | 125 mm |
| Airflow (max) | 482 m³/h |
| Motor | EC, high-efficiency, speed-controllable (230 V, 1~, 50 Hz) |
| Casing | Absolutely airtight seamed (Class C) |
| Control | Integral speed regulator (built-in potentiometer) |
| Protection | Integral thermal protection |
| Mounting | Any position |
Manuals & Guides
Systemair K125 EC Datasheet
Delivery & Returns
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What is the Systemair K125 EC for?
It's a low-energy EC circular duct fan for 125 mm ducting, for efficient, quiet extract or supply in commercial and domestic duct systems.
How much air and what duct size?
Up to 482 m³/h through 125 mm ducting.
Why an EC motor?
EC technology eliminates motor slip losses and keeps the motor at optimal load, so it's far more energy-efficient and much easier to control than a standard AC fan.
How is the speed controlled?
Via an integral speed regulator, a potentiometer built into the terminal box, which also makes commissioning straightforward. It runs on 230 V single-phase.
Is it quiet and low-maintenance?
Yes, EC fans are extremely quiet and maintenance-free, with an absolutely airtight seamed casing (Class C) and integral thermal protection.
Can it be mounted in any position?
Yes, it installs in any position. As a mains fan it should be installed by a qualified electrician.
