Nationwide UK Delivery
Trade Accounts Available
Technical Support
Nationwide UK Delivery
Trade Accounts Available
Technical Support
| Availability | In Stock & Ready to Dispatch |
| Bulk Orders | Project & Bulk Quantities Available |
| In-House Logistics | Reliable Delivery with Standard and Express Shipping Options |
The S&P CRHT/4-400 400 mm Roof-Mounted Ventilation Fan is a powerful centrifugal extraction fan designed for efficient roof ventilation in commercial and industrial HVAC systems. It features a low-profile horizontal discharge design that allows high airflow performance while minimizing roof installation height. The fan uses a high-efficiency backward-curved centrifugal impeller combined with a three-phase external rotor motor to deliver reliable airflow and energy-efficient operation. Built with a galvanised steel base and spun aluminium weather cowl, the unit is engineered for long-lasting durability and protection against outdoor environmental conditions.
Base: Heavy-duty galvanised sheet steel for strength and corrosion resistance.
Cowl: Spun aluminium weather hood designed for outdoor roof installation.
Impeller: Backward-curved centrifugal impeller for efficient airflow performance.
Motor: External rotor three-phase AC motor with built-in thermal protection.
Guard: Steel finger-proof safety guard to prevent debris entry.
Product Type: Centrifugal Roof-Mounted Ventilation Fan
Model: CRHT/4-400
Fan Diameter: 400 mm
Airflow Capacity: Up to ≈4,156 m³/h
Static Pressure: Approx. 108 Pa
Motor Type: External rotor three-phase AC motor
Voltage: 230/400 V – 50/60 Hz
Speed: Approx. 1379 RPM
Power Input: Approx. 0.426 kW
Estimated Delivery: 2–5 Working Days
Shipping costs will be calculated during checkout.
Check delivery options at checkout
The S&P CRHT/4-400 400 mm Roof-Mounted Ventilation Fan is a powerful centrifugal extraction fan designed for efficient roof ventilation in commercial and industrial HVAC systems. It features a low-profile horizontal discharge design that allows high airflow performance while minimizing roof installation height. The fan uses a high-efficiency backward-curved centrifugal impeller combined with a three-phase external rotor motor to deliver reliable airflow and energy-efficient operation. Built with a galvanised steel base and spun aluminium weather cowl, the unit is engineered for long-lasting durability and protection against outdoor environmental conditions.
Base: Heavy-duty galvanised sheet steel for strength and corrosion resistance.
Cowl: Spun aluminium weather hood designed for outdoor roof installation.
Impeller: Backward-curved centrifugal impeller for efficient airflow performance.
Motor: External rotor three-phase AC motor with built-in thermal protection.
Guard: Steel finger-proof safety guard to prevent debris entry.
Product Type: Centrifugal Roof-Mounted Ventilation Fan
Model: CRHT/4-400
Fan Diameter: 400 mm
Airflow Capacity: Up to ≈4,156 m³/h
Static Pressure: Approx. 108 Pa
Motor Type: External rotor three-phase AC motor
Voltage: 230/400 V – 50/60 Hz
Speed: Approx. 1379 RPM
Power Input: Approx. 0.426 kW
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Shipping Information • UK-wide delivery, including Northern Ireland, Scottish Highlands and remote locations. • Orders are processed within 1–2 working days (Mon–Fri). • Standard UK delivery takes approximately 2–5 working days from purchase. • Shipping costs are calculated at checkout based on order size, weight and delivery location. • Free delivery is available on selected orders. Additional charges may apply for large, bulky or remote-area deliveries. • Tracking details are provided once your order has been dispatched. • International shipping is available. Customs duties, taxes and import fees may apply and are the responsibility of the customer. • If your order arrives damaged, incorrect or incomplete, please contact us within 7 days of delivery. For full details, please see our Shipping Policy.
Returns must be requested within 7 days of delivery and approved before being sent back. Items must be unused, undamaged, and in their original packaging. Customers are responsible for return shipping costs, and a restocking fee of up to 25% may apply. Refunds are processed within 3–5 working days after inspection. For damaged, faulty, or incorrect items, please contact us within 7 days of delivery.
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