free blowing both sides Special features of the GB T120 series ■ Designed for the delivery of contaminated, humid and hot air up to max. 120 °C. ■ Motor located outside of air flow. ■ Thermally insulated partition between motor and impeller, made of galvanised steel sheet, with 20 mm thick, non-flammable mineral wool. ■ Complete motor-impeller unit can be removed without dismantling the system components. ■ Inspection cover with handle, easily removable for cleaning and maintenance. ■ Condensate tray with condensate drain as standard. Hole provided for rain drain (accessories) for outdoor installation. Installation position with condensate drain below. Flexible installation due to three possible centrifugal outlet directions of the outlet fitting. Protected outdoor installation possible with weather protection cover and grille (accessories). Any installation position and flexible installation due to five possible outlet directions of the outlet fitting. The wall bracket (accessories) must be used for wall installation. Protected outdoor installation possible with weather protection cover and grille (accessories). Self-supporting frame construction made of aluminium hollow profiles. Double-walled, 20 mm thick side panels made of galvanised steel sheet, sound and heat insulated by non-flammable mineral wool lining. Nozzle on inlet side for optimal inflow as well as connectors and flexible connecting sleeve (for the respective max. permissible air flow temperature) for duct connection. Moulded part (square to round) on outlet side for low-loss outflow and flexible connecting sleeve to prevent structure-borne noise transmission. Simple positioning with standard crane hook. Free-running high performance centrifugal impeller with backward curved plastic blades (aluminium impellers for GB T120), directly driven. Energy-efficient with low noise emission. Dynamically balanced together with the motor in accordance with DIN ISO 21940-11 - quality grade 6.3. Through maintenance-free, speed-controllable external rotor motor or IEC standard motor in protection category IP54. Ball bearing mounted, radio interference-free. Type Ref. no. Max. flow Rated Case-rad. Power Current consumption Wiring Max. air flow Weight Speed controller 5-step Mot. prot. circ. rate speed sound consumpfi°n at rated in control diagram temperature at iret with motor prot. without motor prot. .brea.k cto.nnei>. pressure voltage mode Rat. vol. Control aprx. circuit breaker circuit breaker ting built--in thermal A m3/h min-1 dB(A) in 4m kW A A No. + °C + °C kg Type Ref. no. Type Ref. no. Type Ref. no. Alternating current, 1~, 230 V, 50 Hz, Capacitor motor, protection category IP54 Two-speed, three-phase current motor, 3~, 400 V, 50 Hz, y/a connection, protection category IP54 n Alternating current, 1~, 230 V, 50 Hz, Capacitor motor, protection category IP54 mm Two-speed, three-phase current motor, 3~, 400 V, 50 Hz, y/a connection, protection category IP54 1) Incl. operating switch

GigaBox centrifugal fans 0 355 mmPerformance curves GBW 355/4Performance curves GBD 355/4/4 EPfa Boxfans ■ Electrical connection Standard terminal box (IP54) on motor; on the motor support plate for GB T120. With external thermal contacts on the terminal block, which must be wired to the motor protection circuit breaker. All types are speed-controllable using voltage reduction by means of transformer (accessories). The 3~ types can also be operated at two speeds using a y/a switch or motor protection circuit breaker M 4. Performance levels are shown in the performance diagram. The total level...