DOUBLE INLET CENTRIFUGAL BLOWER COMPLETE WITH FAN MOTOR 415V +/- 10 %, 3 PHASE, SWEEP- 133MM, 1500 RPM, MINIMUM AIR VOLUME CMH- 625, INPUT POWER ( MAX )- 200W, NOMINAL CURRENT 0. 4AMP, NOISE LEVEL 60DB, IP- 44, SUITABLE FOR USE AS EXHAUST FAN IN LHB TYPE AC COACHES CONFIRMING TO RCF SPECIFICATION NO. EDTS 331 ( REVISION- A ).