Axial Lead and Cartridge Fuses
Ceramic Body
3AB
Fast-Acting Fuse 314/324 Series
Ceramic body construction permits higher interrupting ratings and volt-
age ratings. Ideal for applications where high current loads are expected.
UL
®
®
®
QPL
ELECTRICAL CHARACTERISTICS:
% of Ampere
Rating
110%
135%
200%
Ampere
Rating
1/8–30
1/8–30
1/8–12
15 – 30
Opening
Time
4 hours,
Minimum
1 hour,
Maximum
15 seconds,
Maximum
30 seconds,
Maximum
AGENCY APPROVALS:
Listed by Underwriters Laboratories
and Certified by CSA through 15 amperes at 250 VAC/125 VDC.
Recognized under the Components Program of Underwriters
Laboratories at 20-30A, certified by CSA at 20A, and approved by METI
from 10 through 30 amperes.
AGENCY FILE NUMBERS:
UL E10480, CSA LR 29862.
FUSES TO MIL SPEC:
See F03A cartridge type in Military Section.
314
000
Series
6.985 (.275")
6.35 (.25")
31.75
(1.25")
324
000
Series
0.813 (.032") (
1/ 8
- 15A)
1.016 (.040") (20 - 30A)
INTERUPTING RATINGS:
0.125 - 20A
25 - 30A
0.125 - 1A
2 - 3A
4 - 15A
20A
25-30A
10,000A @ 125 VAC/DC
400A @ 125 VAC/DC
35A @ 250 VAC
100A @ 250VAC
750A @ 250VAC
1,000A @ 250VAC
100A @ 250VAC
38.1
(1.50") TYP.
Axial Lead Material: Solder coated copper.
32.385
(1.275")
ORDERING INFORMATION:
Cartridge
Catalog
Number
314.125
314.250
314.375
314.500
314.750
314
001
314
002
314
003
314
004
314
005
314
006
314
007
314
008
314
010
314
012
314
015
314
020
314
025
314
030
Axial Lead
Catalog
Number
324.125
324.250
324.375
324.500
324.750
324
001
324
002
324
003
324
004
324
005
324
006
324
007
324
008
324
010
324
012
324
015
324
020
324
025
324
030
Ampere
Rating
1/8
1/4
3/8
1/2
3/4
1
2
3
4
5
6
7
8
10
12
15
20
25
30
Voltage
Rating
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
Nominal
Resistance
Cold Ohms
6.20
1.95
0.820
0.500
0.250
0.189
0.0700
0.0432
0.0470
0.0300
0.0240
0.0187
0.0153
0.0105
0.00760
0.00505
0.00355
0.00235
0.00182
Nominal
Melting I
2
t
A
2
Sec.
0.00149
0.0140
0.050
0.115
0.466
0.690
11.0
14.6
10.4
26.0
45.0
71.0
105.0
206.0
570.0
292.0
631.0
1450.0
2490.0
Average Time Current Curves
1/8A
1/4A
3/8A
1/2A
3/4A
1A
1
2A
3A
4A
5A
6A
7A
8A
10A
12A
15A
20A
25A
30A
10
100
CURRENT IN AMPERES
1000
100
TIME IN SECONDS
10
1
0.1
0.01
0.1
1000
292
w w w. l i t t e l f u s e . c o m
LITTELFUSE [ LITTELFUSE ]
