cooper bussmann

FWP 690V/700V (14 x 51mm) Ferrule High speed fuses,Striker Optional

  
Description:
Ferrule style high speed fuses with and without indicating striker.

Ratings:
Volts: 690Vac (IEC); 700Vac (UL); 800Vdc (5-50A)
Amps:  1-50A
IR: 200kA RMS Sym. 50kA @800Vdc

Agency Information: CE, UL Recognition, CSA Component Acceptance for versions without indicator only.

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).

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.

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

Dimensions - mm (inches)
Without Striker

With Striker


Catalog Numbers
Catalog Numbers Size Electrical Characteristics
Current RMS-Amps Rated I2t (A2 Sec) Watts Loss
Minimum Melting Clearing At Rated Voltage
Without Striker
FWP-1A14Fa 14 x 51mm 1A . . .
FWP-2A14Fa 2A . . .
FWP-2.5A14Fa 2.5A . . .
FWP-3A14Fa 3A . . .
FWP-4A14Fa 4A . . .
FWP-5A14Fa 5A 1.6 11 1.5
FWP-10A14Fa 10A 3.6 38.5 4
FWP-15A14Fa 15A 8.6 70 5.5
FWP-20A14Fa 20A 26 230 6
FWP-25A14Fa 25A 46.5 375 7
FWP-30A14Fa 30A 58 485 9
FWP-32A14Fa 32A 68 600 7.6
FWP-40A14Fa 40A 84 750 8
FWP-50A14Fa 50A 200 1800 9
With Striker
FWP-10A14FI 14 x 51mm 10A 3.6 38.5 4
FWP-15A14FI 15A 8.6 70 5.5
FWP-20A14FI 20A 26 230 6
FWP-25A14FI 25A 46.5 375 7
FWP-30A14FI 30A 58 485 9
FWP-32A14FI 32A 68 600 7.6
FWP-40A14FI 40A 84 750 8
FWP-50A14FI 50A 200 1800 9
• Watts loss provided at rated current.

Time-Current Curve


Peak Let-Through Curve
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