High Speed Fuses Ferrule FWX 250V (UL): 1-50A Arc Voltage 1.4 FWX (14 x 51mm) U 1.2 L This curve gives the 3 Specifications 10 peak arc voltage, U , L Description: Ferrule style high 800 which may appear speed fuses. across the fuse during 600 Dimensions: See Dimensions its operation as a func- 500 illustration. tion of the applied work- 400 1) Ratings: ing voltage, E , (rms) at g 300 Volts: 250Vac a power factor of 15%. 2) E g Amps: 1-50A 200 Power Losses 50 100 150 200 250 IR: 200kA RMS Sym. Watts loss at rated current 50kA 250Vdc 1.0 Kp is given in the electrical 0.8 Agency Information: CE, UL Recognition 1-50A & CSA characteristics. The curve 0.6 Component Acceptance: 5-30A allows the calculation of 0.5 the power losses at load 0.4 Electrical 1.5 currents lower than the 0.3 K Characteristics rated current. The 1.0 0.2 2 correction factor, K , is Total Clearing I t p given as a function of the 2 The total clearing I t at 1) RMS load current, I , in % 0.5 b I b 0.1 rated voltage and at power of the rated current. 30 40 50 60 70 80 90 100% factor of 15% are given 2) 0.3 in the electrical Catalog Numbers 0.2 Electrical Characteristics characteristics. For other Rated I2t (A2 Sec) 2 voltages, the clearing I t is Eg Catalog Current Clearing Watts 0.15 found by multiplying by Number Size RMS-Amps Pre-arc at 250V Loss 75 125 200 250 300 FWX-1A14F 14 x 51mm 1 correction factor, K, given 9 FWX-2A14F ( 16 x 2) 2 as a function of applied FWX-3A14F 3 working voltage, E , (rms). FWX-4A14F 4 g FWX-5A14F 5 1.6 13 1.3 FWX-10A14F 10 3.6 24 3.4 FWX-15A14F 15 14 83 3.8 FWX-20A14F 20 33 200 4.6 FWX-25A14F 25 58 300 5.3 FWX-30A14F 30 100 500 5.9 Dimensions - mm (inches) FWX-50A14F 50 200 1800 5.7 Watts loss provided at rated current. (250Vdc/Interrupting rating 50kA) UL Recognition & CSA Component Acceptance on 5 50.8 14.3 through 30A only. Consult Cooper Bussmann for additional ratings. (2.000 ) (0.563 ) See accessories on page 211. Features and Benefits Excellent cycling capability and dc performance 2 Low arc voltage and low energy let-through (I t) Low watts loss in a compact size Used with finger-safe holders/blocks 15.5 (0.610 ) Typical Applications DC common bus DC drives Power converters/rectifiers Reduced voltage starters For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp 194High Speed Fuses High Speed Fuses Ferrule FWX 250V (UL): 1-50A FWX 1-30A: 250V (14 x 51mm) Time-Current Curve Did You Know All-Inclusive Elevator Disconnect Simplifies Installation Plus a Multitude of Codes and Standards When the Westin Hotel chain reno- vated the historic Cupples Station in downtown St. Louis, the hotels design-and-build electrical contrac- tor specified the Cooper Bussmann Power Module elevator shunt trip disconnect. The primary reason was the savings in man-hours with everything in one box: the fire alarm, control wiring and power wiring all the parts needed to interface with a fire alarm system in a UL 98 Listed assembly. In addition, all the codes and standards surrounding the elevator disconnecting Peak Let-Through Curve means electrical, elevator, fire alarm and the sprinkler system are met, including ANSI/ASME A17.1, NFPA 72, NEC 620.62. The contractor faced a unique situation when the luxury hotel chain chose to revamp the old warehouse versus tearing the structure down and rebuilding. The hotel complex consists of four buildings interconnected with walkways. A total of eight elevators were installed with eight Power Module switches, two per building. Each 30 HP passenger elevator is fused with Cooper Bussmann Low-Peak Class J LPJ-70SP fuses while each 40HP service elevator uses the Class J LPJ-90SP fuses. Data Sheet: 35785302 For product data sheets, visit www.cooperbussmann.com/products/datasheet.asp 195