cooper bussmann

FWA 150V 5-60A Ferrule High speed fuses

  
FWA 5-30A (10 x 38mm) / 35-60A (21 X 51mm)

Specifications
Description: Ferrule style high speed fuses.

Ratings:
Volts: 150Vac/dc
Amps: 5-60A
IR: 100kA Sym.
Agency Information: CE, UL Recognition

Electrical Characteristics
Total Clearing I2t

The total clearing I2t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K, given as a function of applied working voltage, Eg, (rms).

Dimensions - in (mm)


Arc Voltage

This curve gives the peak arc voltage, UL, which may appear across the fuse during its operation as a function of the applied working voltage, Eg, (rms) at a power factor
of 15%.

Power Losses

Watts loss at rated current is given in the electrical characteristics. The curve allows the calculation of the power losses at load currents lower than the rated current. The
correction factor, Kp, is given as a function of the RMS load current, Ib, in % of the rated current.

Catalog Numbers
Catalog Numbers Size Rated Current RMS-Amps I2t(A2 Sec) Watts Loss
Pre-arc Clearing at 120V
FWA-5A10F 10x38mm 5A 1.6 8 1
FWA-10A10F 10A 3.6 16 2.7
FWA-15A10F 15A 14 55 3.3
FWA-20A10F 20A 33 130 3.8
FWA-25A10F 25A 58 220 4.9
FWA-30A10F 30A 100 400 4.9
FWA-35A21F 21x51mm 35A 75 800 4.5
FWA-40A21F 40A 100 1000 5.1
FWA-45A21F 45A 130 1300 6
FWA-50A21F 50A 170 1600 7.3
FWA-60A21F 60A 250 2400 8
• Watts loss provided at rated current.

Features and Benefits
• Excellent cycling capability and DC performance
• Low arc voltage and low energy let-through (I2t)
• Low watts loss in a compact size
• Used with finger-safe holders/blocks

Typical Applications
• DC common bus
• DC drives
• Power converters/rectifiers
• Reduced voltage starters

FWA 5-30A: 150V (10 x 38mm)
Time-Current Curve

Peak Let-Through Curve


FWA 35-60A: 150V (21 x 51mm)
Time-Current Curve

Peak Let-Through Curve
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