MDB

Experts in Ventilation

Multi-Directional Box Fans - MDB Series

Features
The MDB Series of duct mounted centrifugal fans is suitable for supply or exhaust from applications ranging from residential, through commercial, to industrial. Construction Aluminium extruded tubular frame incorporating 4 removable pre-galvanised panels for multi-directional airflow. Acoustically lined inner skin for optimum noise reduction. Backward curved centrifugal impellers. Motors Type - direct-driven external rotor. Electricity supply - single or three-phase to suit a wide range of voltages and frequencies. Bearings - sealed-for-life ball. External rotor motors are fully speed-controllable using electronic or auto-transformer controllers. Internal Thermal Protection Manual - reset type are fitted as standard to external rotor motors. Testing Air flow tests to BS848:Part 1, 1980 and AMCA 210-85. Noise data tests to BS848:Part 2, 1985. Special Features Most three-phase external rotor motors are 2-speed star/delta design. Fan units are light in weight and can be mounted at any angle.
Dimensions

Suggested Specifications
The MDB Centrifugal Fans shall be as designed and manufactured by Elta SA and be of the model numbers shown on the schedule/drawings. The backward-curved centrifugal impellers shall be driven by external rotor motors. All models shall be fully tested to BS848:Part 1, 1980 for air flow and BS848:Part 2, 1985 for noise
Technical Data

Performance

Ancillaries

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