Axial wall fan with square wall plate, DN 300, three-phase AC
Product description
Features
Yellow chromated protective grille on the intake side, potection against accidental contact in accordance with DIN EN ISO 13857.
8-blade impellers made of glass-fibre filled polyamide. Dynamically balanced at two levels, in accordance with performance level 6.3, DIN ISO 1940, Part 1.
Can be fitted in any position.
Air flow direction
The following illustration shows the air flow direction:
Air flow direction A: With air drawn across the motor, standard
Air flow direction B: With air blown across the motor, available on request
Rotational direction
Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction.
Motor
Asynchronous motor.
Speed controllable. Exception: Type EZQ 45/6 B, EZS 45/6 B, DZQ 40/2 B and DZS 40/2 B.
Reversible. Exception: Fans with shaded-pole motors (...-E).
Not suitable for ventilating steam-saturated air.
Three-phase AC motor
DZQ and DZS model series.
Rated voltage 400 V, 50 Hz.
IP 55 degree of protection. Exception DZQ/DZS... D IP 54.
Thermal overload protection as a standard feature. Exception: available on request for DZQ/DZS 25/4 D and pole-changeable axial duct fans.
Potential-free terminal connections, which must be connected to e.g. an MV 25 protective motor switch or the control circuit of a contactor.
Pole-changeable fans: Ensure overload protection is guaranteed by a motor protection switch provided by the customer.
Pole-changeable motors with speed ratios of 8/4 or 4/2 have a Dahlander pole-changing circuit.
Electrical connection
To terminal block under the motor cover.
Safety instructions
The fan may be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordance with DIN EN ISO 13857.
Special versions
The following special versions are available at extra cost on request:
Special voltages and frequencies.
Single-phase motors with thermal contacts or PTC thermistor, with potential-free terminal connections.
Condensation drainage holes.
Fans with enhanced anti-corrosion protection.
Impellers made of aluminium.
Information on operation at temperatures occasionally below -20°C available upon request.
If operating with frequency converters, the factory must be consulted.
Feasibility must be checked in each case.
Table of contents
Wiring diagram
DZQ 30/4 B - Wiring diagram
DZQ/DZS/DZF..B standard (right-hand operation, 1 speed)
SC - Protection contact
TK - Thermal contact
DZQ/DZS/DZF..B standard (left-hand operation, 1 speed)
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