FWA
Specifications
Description: North American style flush-end high speed fuses.
Dimensions: See Dimensions illustrations.

Ratings:
Volts: 130Vac
Amps: 1000-4000A
IR:200kA RMS Sym.50kA @130Vdc
Agency Information: CE, UL Recognized on 1000-2000A fuses

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)



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	Electrical Characteristics
	Rated Current RMS-Amps	I2T(A2 Sec)		Watts Loss
		Pre-arc	Clearing at 130V
FWA-1000AH	1000	170000	460000	60
FWA-1200AH	1200	270000	730000	70
FWA-1500AH	1500	520000	1400000	78
FWA-2000AH	2000	860000	2400000	108
FWA-2500AH	2500	1500000	4100000	130
FWA-3000AH	3000	2100000	5700000	150
FWA-4000AH	4000	3400000	9200000	257

Features and Benefits
• Excellent DC performance
• Low arc voltage and low energy let-through (I2t)
• Low watts loss
• Superior cycling capability

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