S&P IRT/4-400B Inline Rectangular Duct Fan
S&P IRT/4-400B Inline Rectangular Duct Fan
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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 | S&P |
| Model | IRT/4-400B |
| Type | Inline rectangular duct fan |
| Duct size | 800 x 500 mm |
| Max airflow | 9580 m³/h |
| Phase | Three phase |
| Pole | 4 pole |
| Motor | AC |
| Power | 2142 W |
| Warranty | 2 Years |
Summary
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The S&P IRT/4-400B is a three-phase inline rectangular duct fan built for general ventilation where a fan must sit within a rectangular ducted system or where installation space is tight. It uses a high performance, dynamically balanced backward curved centrifugal impeller in a heavy gauge galvanised steel casing, delivering up to 9580 m³/h of free air.
The external rotor motor carries Class F insulation with thermal protection and runs on a 230/400V-50Hz three-phase supply. Speed is controllable by transformer or frequency drive, and the hinged inspection door plus remote IP55 terminal box make cleaning, maintenance and control wiring straightforward. The fan can be mounted in any orientation.
- High performance dynamically balanced centrifugal impeller
- Inspection door for easy cleaning and maintenance
- Can be installed in any orientation
- Remote IP55 terminal box for external controls
- Speed controllable by transformer or frequency drive
Specifications
| Brand | S&P |
| Model | IRT/4-400B |
| Type | Inline rectangular duct fan |
| Duct size | 800 x 500 mm |
| Max airflow | 9580 m³/h |
| Phase | Three phase 230/400V-50Hz |
| Pole | 4 pole |
| Motor | AC external rotor, Class F |
| Max power | 2142 W |
| Warranty | 2 Years |
Manuals & Guides
S&P IRT Inline Rectangular Duct Fan Datasheet
Product Description
The S&P IRT/4-400B is a three-phase inline rectangular duct fan built for general ventilation where a fan must sit within a rectangular ducted system or where installation space is tight. It uses a high performance, dynamically balanced backward curved centrifugal impeller in a heavy gauge galvanised steel casing, delivering up to 9580 m³/h of free air.
The external rotor motor carries Class F insulation with thermal protection and runs on a 230/400V-50Hz three-phase supply. Speed is controllable by transformer or frequency drive, and the hinged inspection door plus remote IP55 terminal box make cleaning, maintenance and control wiring straightforward. The fan can be mounted in any orientation.
- High performance dynamically balanced centrifugal impeller
- Inspection door for easy cleaning and maintenance
- Can be installed in any orientation
- Remote IP55 terminal box for external controls
- Speed controllable by transformer or frequency drive
Specifications
| Brand | S&P |
| Model | IRT/4-400B |
| Type | Inline rectangular duct fan |
| Duct size | 800 x 500 mm |
| Max airflow | 9580 m³/h |
| Phase | Three phase 230/400V-50Hz |
| Pole | 4 pole |
| Motor | AC external rotor, Class F |
| Max power | 2142 W |
| Warranty | 2 Years |
Manuals & Guides
S&P IRT Inline Rectangular Duct Fan Datasheet
Delivery & Returns
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What is the maximum airflow of the S&P IRT/4-400B?
It delivers up to 9,580 m³/h of free air.
What duct size does the IRT/4-400B suit?
It is built for a 800 x 500 mm rectangular duct.
Is the IRT/4-400B single or three phase?
It is three phase, running on a 230/400V-50Hz supply.
Can the fan speed be controlled?
Yes, speed is controllable by transformer or by frequency drive.
Can it be mounted in any position?
Yes, the fan is suitable for mounting in any orientation.
What is the difference between the 400A and 400B?
The 400B is the higher output version, moving up to 9,580 m³/h against the 400A at 7,940 m³/h.