North American Style —General Information
Characteristics:•Low energy let-thru (I 2t)•Low watts loss •Superior cycling capability •Low arc voltage •Excellent dc performance North American style fuses provide an excellent solution for medium power applications. While there are currently no pub-lished standards for these fuses, the industry has standardized on mounting centers that accept Bussmann fuses.Accessories Bussmann offers a comprehensive line of fuse bases that pro-vide the user with design and manufacturing flexibility.Voltage Rating 130Vac/dc 1000 to 4000A 150Vac/dc 70 to 1000A 250Vac/dc 35 to 2500A 500Vac/dc 35 to 1600A 600Vac 1 to 1000A 700Vac/dc 5 to 1200A 800Vdc 35 to 600A 1000Vac, 700Vdc 35 to 2000A All Bussmann North American Style fuses are certified for their rated voltage.
North American Style
Electrical Characteristics Rated I 2t (A 2SEC) @ 100kA Current Clearing Watts RMS-Amps Pre-arc at 150V Loss 704704000 6.98067060007.71001200120009.012518701800011.215027002600013.520047804500017.625074707000022.5300 1076010000027.03501570014000030.64002030018000035.25003900012000035.06004600014000047.07007500022000049.08009200028000058.0100017000051000060.0Ordering Information
Part Number Carton Qty.Carton Weight (lbs)
FWA-70B 10 1.76FWA-80B
10 1.76FWA-100B 10 1.76FWA-125B
10 1.76FWA-150B 10 1.76FWA-200B
10 1.76FWA-250B 10 1.76FWA-300B
10 1.76FWA-350B 10 1.76FWA-400B
10 1.76FWA-500A 5 2.42FWA-600A
5 2.42FWA-700A 5 2.42FWA-800A
5 2.42FWA-1000A 5 2.42FWA 150V Voltage Rating: 150Vac/150Vdc (150Vdc rating applies to 70 through 800A only.) Interrupting Rating: 100kA RMS Symmetrical. (70-400A)200kA RMS Symmetrical. (450-1000A)
Agency Information: UL Recognized, Std. 248-13Watts loss provided at rated current.
North American Style FWX 250V Voltage Rating: 250Vac/250Vdc (250Vdc rating on 35 through 800A only.)Interrupting Rating: 200kA RMS Symmetrical.Agency Information:UL Recognized, Std. 248-13, 35-800A Watts loss provided at rated current.Ordering Information Part Number Carton Qty.Carton Weight (lbs)FWX-35A 5 1.40
FWX-40A 5 1.40FWX-45A 5 1.40
FWX-50A 5 1.40FWX-60A 5 1.40
FWX-70A 10.32FWX-80A 10.32
FWX-90A 10.32FWX-100A 10.32
FWX-125A 10.32FWX-150A 10.32
FWX-175A 10.32FWX-200A 10.32FWX-225A 10.52
FWX-250A 10.52FWX-275A 10.52FWX-300A 10.52FWX-350A 10.52FWX-400A 10.52FWX-450A 10.52FWX-500A 10.52FWX-600A 10.52FWX-700A 10.90FWX-800A 10.90FWX-1000AH 1 2.86FWX-1200AH 1 2.86FWX-1500AH 1 2.86FWX-1600AH 1 2.86FWX-2000AH 1 2.86FWX-2500AH 1 2.86Electrical Characteristics Rated
I 2t (A 2SEC) @ 100kA Current Clearing Watts RMS-Amps Pre-arc at 250V Loss 3550230 4.24060310 5.24580390 5.750100520 6.0601407408.17033014007.28043018508.19057024509.0100740315010.01251130485012.51501620695015.71752170930018.52002790120002222532101470024250396018100272754720216003130060002730032350106004860039400145006610044450221001010004950028000128000546004110018800062700488001900007280059000230000841000440003600001001200920007500001031500120000880000140160016000012000001402000320000230000015125006700004700000
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North American Style FWH 500V Voltage Rating: 500Vac/500Vdc (500Vdc rating applies to 35 through 800A only.)Interrupting Rating:200kA RMS Symmetrical.Agency Information: UL Recognized, Std. 248-13, 35-1200A; CSA Component Acceptance 35-1600A Watts loss provided at rated current.Ordering Information Part Number Carton Qty.Carton Weight (lbs)FWH- 35B 10 1.34FWH-40B 10 1.34
FWH-45B 10 1.34FWH-50B
10 1.34FWH-60B 10 1.34FWH-70B
10 2.05FWH-80B 10 2.05FWH-90B
10 2.05FWH-100B 10 2.05FWH-125B
5 1.65FWH-150B 5 1.65FWH-175B
5 1.65FWH-200B 5 1.65FWH-225A
10.57FWH-250A 10.57FWH-275A
10.57FWH-300A 10.57FWH-325A
10.57FWH-350A 10.57
FWH-400A 10.57FWH-450A
1 1.00FWH-500A 1 1.00FWH-600A
1 1.00FWH-700A 1 2.14FWH-800A
1 2.14FWH-1000A 1 4.62FWH-1200A
1 4.62FWH-1400A 111.66FWH-1600A
111.66Electrical Characteristics Rated I 2t (A 2SEC) @ 100kA Current Clearing Watts
RMS-Amps Pre-arc at 500V Loss 3534150.840763207.5451054507.5501356707.5602109009.97021090010.680305140012.790360160015100475200017125800350025150110046003017514506200352001900850040225460023300392506300322004127579004030046300980049800513251370063800533501450072900584001920096700654502470012700074500292001490008460041300206000108700550002980001208007620040900012910009200045000014512001220006000001801400200000100000021016002900001400000230
North American Style
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