Helios HQW-250/4 EX - Single Phase ATEX rated fan

Helios 250mm, 4 pole, single phase wall fan with square plate with inlet cone.

Casing
Manufactured in galvanised sheet steel. Also an additional two-layer finishing in papyrus white.

Casing
Manufactured in galvanised sheet steel.
Impeller
Highly efficient, profiled blade impeller, dynamically balancedand manufactured from impact resistant polymers. Suitable for-30 to +60 °C.
Motor
Totally enclosed motor with a die-cast aluminium casing, pro-tected to IP 54. Ball bearing mounted. Maintenance-free and interference-free. Humidity pro-tection of windings.
Motor protection
All models have automatically resetting thermal contacts wired in series with the motor windings.
Terminal box (IP 54) mounted onrear of motor as standard.
GuardPowder-coated steel wire according to DIN EN ISO 13857.
Speed control
All models are speed controllable by voltage reduction (trans-former controller or electronic controller).
Reversed operation
All models are reversible when wired to a DSEL reversing switch. For reverse air flow direction allow for 1/3 drop in performance.

Download datasheet HERE