400 ºC/2h centrifugal extractor fans with backward curved impeller fitted with electronically adjustable, high efficiency, asynchronous IE3 motors
400 ºC/2h centrifugal, single-inlet extractor fans for outdoor operation in fire risk zones, with extreme robustness, fitted with a backward curved impeller and an electronically adjustable, high efficiency IEC asynchronous motor.
Fan: • Sheet steel casing. • Backward curved impeller in very robust sheet steel, with anti-heat paint. • Approved in accordance with standard EN 12101-3.
Motor: • New high efficiency AC asynchronous motors (IE3). • Fitted with durable ball bearings. IP55 protection. • Three-phase 230/400 V 50 Hz (up to 4 kW) and 400/690 V 50 Hz (powers greater than 4 kW). • Maximum temperature of air to be carried: S1 -25 ºC+ 250 ºC continuous service. S2 300 ºC/2h and 400 ºC/2h service.
Electronic speed drive: • Adjustable speed by 0-10 V signal or PI automatic control integrated in the inverter. • Highly configurable electronic drive with 2 analog inputs, 2 digital inputs, 1 relay output and 1 analog or digital output to select. • Possibility of connection to MODBUS and CAN Open field buses. • Electronic drive for easy installation outside the work area. Thanks to its DIN rail it can be mounted on control panels minimizing connections. • Supplied pre-wired with shielded cable in accordance with EMC directive 2014/30/EU. • Available with single-phase 220-240 V 50/60 Hz input up to 3 CV (Type VSD1/A-RFM) or three-phase 380-415 V 50/60 Hz (Type VSD3/A-RFT). IP20 standard protection. IP66 protection up to 10 CV on request. • Working temperature (VSD): -25 ºC + 50 ºC.
Finish: • Anti-corrosive finish in polyester resin, polymerised at 190 ºC, after degreasing with phosphate-free nanotechnology treatment.