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FWA FUSE

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FWA 150V 70-1000A

Electrical Characteristics					Ordering Information			Dimensions
Type	Rated current RMS-AMPS	l²t (A² Sec)		Watts loss	Part Number	Carton Qty.	Carton Weight (Lbs)	Figure Number
Type	Rated current RMS-AMPS	Pre-arc	Clearing at 150V	Watts loss	Part Number	Carton Qty.	Carton Weight (Lbs)	Figure Number
FWA 150V	70	470	4000	6.9	FWA-70B	5	0.18	Fig. 1
FWA 150V	80	670	6000	7.7	FWA-80B	5	0.18	Fig. 1
FWA 150V	100	1200	12000	9.0	FWA-100B	5	0.18	Fig. 1
FWA 150V	125	1870	18000	11.2	FWA-125B	5	0.18	Fig. 1
FWA 150V	150	2700	26000	13.5	FWA-150B	5	0.18	Fig. 1
FWA 150V	200	4780	45000	17.6	FWA-200B	1	0.18	Fig. 1
FWA 150V	250	7470	70000	22.5	FWA-250B	1	0.18	Fig. 1
FWA 150V	300	10760	100000	27.0	FWA-300B	1	0.18	Fig. 1
FWA 150V	350	15700	140000	30.6	FWA-350B	1	0.18	Fig. 1
FWA 150V	400	20300	180000	35.2	FWA-400B	1	0.18	Fig. 1
FWA 150V	500	39000	120000	35.0	FWA-500A	5	2.42	Fig. 1
FWA 150V	600	46000	140000	47.0	FWA-600A	5	2.42	Fig. 1
FWA 150V	700	75000	220000	49.0	FWA-700A	5	2.42	Fig. 1
FWA 150V	800	92000	280000	58.0	FWA-800A	5	2.42	Fig. 1
FWA 150V	1000	170000	510000	60.0	FWA-1000A	5	2.42	Fig.

1 kg = 2.2 lbs 1 lb = 0.45 kg• Interrupting rating 100kA RMS Symmetrical for ampere ratings 70-400.
• Interrupt rating 200kA RMS Symmetrical for ampere ratings 450-1000.
• Watts loss provided at rated current.
• (150 Vdc/Interrupting rating 20kA) U.L. Recognition on 70 - 800 amperes.
• (80 Vdc/Interrupting rating 100kA) U.L. Recognition on 70 - 400 amperes.

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 volt-

ages,the clearing I²t is found by multi-

plying by correction factor, K, given as

a function of applied working voltage,

E_g, (RMS).

Arc Voltage

This curve gives the peak arc voltage,

U_L, which may appear across the fuse

during its operation as a function of the

applied working voltage, E_g, (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 .

Dimensions

Dimension in inches.
1mm = 0.0394· 1· = 25.4mm

Order #	Fig.	A	B	C	D	E	F	G	H	J
FWA-70B-400B	1	2.656	1.000	1.156	2.188	1.936	0.312	0.750	0.125	0.438
FWA-500A-1000A	1	3.476	1.500	1.250	2.579	1.927	0.433	1.000	0.250	0.764