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