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Axial Lead and Cartridge Fuses
Special
3AB Very Fast-Acting Fuse 322 Series
For protection of silicon controlled rectifiers and similar solid-state devices.
(R)
ORDERING INFORMATION:
Cartridge Catalog Number 322 001 322 1.25 322 002 322 003 322 004 322 005 322 006 322 007 322 008 322 009 322 010 322 012 322 015 322 020 322 025 322 030 Ampere Rating 1 11/4 2 3 4 5 6 7 8 9 10 12 15 20 25 30 Voltage Rating 250 250 250 250 250 250 250 250 250 250 250 65 65 65 65 65 Nominal Resistance Cold Ohms 0.26 0.175 0.132 0.063 0.044 0.035 0.027 0.022 0.019 0.016 0.0135 0.0052 0.0043 0.0034 0.0029 0.0023
ELECTRICAL CHARACTERISTICS:
% of Ampere Rating 100% 250% Ampere Rating 1- 30 1-10 12- 30 Opening Time 4 hours, Minimum .2 second, Maximum 1 second, Maximum
AGENCY APPROVALS: Recognized under the Components Program of Underwriters Laboratories from 1 through 10 amperes at 250 VAC/65 VDC, 12 through 30 amperes at 65 VAC/VDC. INTERUPTING RATINGS:
1-10A 12-30A 10,000A @ 125 VAC 100A @ 250 VAC 200A @ 65 VAC
322 000 Series
6.35 (.25") 31.75 (1.25")
LOW VOLTAGE
SFE Fast-Acting Type
% of Ampere Rating 110% 135% 200%
307 Series ORDERING INFORMATION:
Opening Time 4 hours, Minimum 1 hour, Maximum 10 seconds, Maximum Catalog Number 307 004 307 006 307 07.5 307 009 307 014 307 020 307 030 Ampere Rating 4 6 71/2 9 14 20 30 Voltage Rating 32 32 32 32 32 32 32 Nominal Resistance Cold Ohms 0.0220 0.0144 0.0113 0.00945 0.0055 0.0034 0.0021
UL (R)
ELECTRICAL CHARACTERISTICS:
AGENCY APPROVALS: Listed by Underwriters Laboratories. DESIGN STANDARDS: UL Standard 275. SAE (Society of
Automotive Engineers) J554.
Fuse Length 15.875 (5/8") 19.05 (3/4") 22.23 (7/8") 22.23 (7/8") 26.99 (11/16") 31.75 (11/4") 36.51 (17/16")
307 000 Series
6.35 (.25") SEE CHART
438
w w w. l i t t e l f u s e . c o m

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