Systemair K315M Centrifugal Duct Fan AC Motor - 315mm/12"
Systemair K315M Centrifugal Duct Fan AC Motor - 315mm/12"
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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 | K315M |
| Type | Centrifugal inline duct fan |
| Duct connection | 315 mm (25 mm spigots) |
| Airflow (max) | 1238 m³/h |
| Motor | External-rotor AC, speed-controllable (230 V, 1~, 50 Hz) |
| Casing | Galvanised folded sheet steel (airtight; outdoor/wet-room; corrosion class C3) |
| Protection | Impedance/thermal protected |
| Mounting | Any position; fixing bracket included |
| Warranty | 1 Year Manufacturer |
Summary
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The Systemair K315M is a centrifugal inline duct fan designed for installation in circular ducting, with minimum 25 mm spigot connections. It has backward-curved blades and an external-rotor motor, and its folded galvanised sheet-steel casing is close to airtight — making outdoor and duct-connected wet-room applications possible (corrosion class C3). It delivers up to 1238 m³/h through 315 mm duct.
- Airflow up to 1238 m³/h; 315 mm connection (25 mm spigots)
- Speed-controllable AC, 230 V, 1~, 50 Hz (stepless thyristor or 5-step transformer)
- Backward-curved external-rotor motor; impedance/thermal protected
- Near-airtight folded galvanised-steel casing; corrosion class C3; outdoor/wet-room capable
- Low noise; can be installed in any position; fixing bracket and screws included
- Maintenance-free and reliable
Suitable for
- Duct-mounted extract and supply, including outdoor and wet-room applications
- Commercial and domestic circular duct systems
Installation
Installs in any position using the included fixing bracket. Speed control via thyristor or 5-step transformer. Should be installed on a suitable circuit by a qualified electrician.
Specifications
| Brand | Systemair |
| Model | K315M |
| Type | Centrifugal inline duct fan |
| Duct connection | 315 mm (25 mm spigots) |
| Airflow (max) | 1238 m³/h |
| Motor | External-rotor AC, speed-controllable (230 V, 1~, 50 Hz) |
| Casing | Galvanised folded sheet steel (airtight; outdoor/wet-room; corrosion class C3) |
| Protection | Impedance/thermal protected |
| Mounting | Any position; fixing bracket included |
| Warranty | 1 Year Manufacturer |
Manuals & Guides
Systemair K315M Datasheet
Product Description
The Systemair K315M is a centrifugal inline duct fan designed for installation in circular ducting, with minimum 25 mm spigot connections. It has backward-curved blades and an external-rotor motor, and its folded galvanised sheet-steel casing is close to airtight — making outdoor and duct-connected wet-room applications possible (corrosion class C3). It delivers up to 1238 m³/h through 315 mm duct.
- Airflow up to 1238 m³/h; 315 mm connection (25 mm spigots)
- Speed-controllable AC, 230 V, 1~, 50 Hz (stepless thyristor or 5-step transformer)
- Backward-curved external-rotor motor; impedance/thermal protected
- Near-airtight folded galvanised-steel casing; corrosion class C3; outdoor/wet-room capable
- Low noise; can be installed in any position; fixing bracket and screws included
- Maintenance-free and reliable
Suitable for
- Duct-mounted extract and supply, including outdoor and wet-room applications
- Commercial and domestic circular duct systems
Installation
Installs in any position using the included fixing bracket. Speed control via thyristor or 5-step transformer. Should be installed on a suitable circuit by a qualified electrician.
Specifications
| Brand | Systemair |
| Model | K315M |
| Type | Centrifugal inline duct fan |
| Duct connection | 315 mm (25 mm spigots) |
| Airflow (max) | 1238 m³/h |
| Motor | External-rotor AC, speed-controllable (230 V, 1~, 50 Hz) |
| Casing | Galvanised folded sheet steel (airtight; outdoor/wet-room; corrosion class C3) |
| Protection | Impedance/thermal protected |
| Mounting | Any position; fixing bracket included |
| Warranty | 1 Year Manufacturer |
Manuals & Guides
Systemair K315M Datasheet
Delivery & Returns
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What is the Systemair K315M for?
It's a centrifugal inline duct fan for 315 mm circular ducting, for extract or supply in commercial and domestic systems, including outdoor and wet-room duct applications thanks to its airtight casing.
How much air and what duct size?
Up to 1238 m³/h through 315 mm ducting (25 mm spigots).
Can it be speed controlled?
Yes, on 230 V single-phase, via a stepless thyristor controller or a 5-step transformer.
Is it suitable for outdoor or wet-room duct runs?
Yes, the folded galvanised-steel casing is near-airtight with corrosion class C3, suitable for outdoor and duct-connected wet-room applications.
Can it be mounted in any position?
Yes, it installs in any position and comes with a fixing bracket and screws as standard.
Is it protected and reliable?
Yes, a backward-curved external-rotor motor with impedance/thermal protection, low noise and maintenance-free running. Install by a qualified electrician.