1/4" x 1-1/4" Fuses
MDL Series, Time Delay, Glass Tube
Description
• Time delay, glass tube
• Optional axial leads available
• 1/4 x 1-1/4 (6.3mm x 32mm) physical size
• Glass tube, nickel-plated brass endcap construction
• UL Listed product meets standard 248-14
ELECTRICAL CHARACTERISTICS
Rated Current
Amp Rating
Opening Time
100%
None
1/16 - 30A
135%
60 minutes max.
200%
120 seconds max.
1/16 - 3A
200%
5 seconds min.
3-2/10 - 8A
200%
12 seconds min.
RoHS
2002/95/EC
Dimensions
(
mm
⁄
in
)
Drawing Not to Scale
Agency Information
• UL Listed Card: MDL 1/16 - 8A (Guide JDYX, File E19180)
• UL Recognized Card: MDL 9 - 30A (Guide JDYX2,
File E19180)
• CSA Certification Card: MDL 1/16 - 8A
(Class No. 1422-01)
• CSA Component Acceptance: MDL 9-30A
(Class No. 1422-30)
Environmental Data
• Shock: 1/100A and 8/10A – MIL-STD-202,
Method 213, Test Condition I; 1A thru 30A –
MIL-STD-202, Method 207, (HI Shock)
• Vibration: 1/100A and 8/10A – MIL-STD-202,
Method 201; 1/4A thru 30A – MIL-STD-202,
Method 204, Test Condition C (Except 5g, 500HZ)
Ordering
• Specify packaging, product, and option code
Voltage
Rating
AC
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
32V
32V
32V
32V
32V
32V
AC Interrupting
Rating*
125V
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
10000A
-
-
-
-
-
-
SPECIFICATIONS
32V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1000A
1000A
1000A
1000A
1000A
1000A
Product Code
MDL-1/16
MDL-1/10
MDL-1/8
MDL-3/16
MDL-2/10
MDL-1/4
MDL-3/10
MDL-3/8
MDL-1/2
MDL-3/4
MDL-1
MDL-1-1/4
MDL-1-1/2
MDL-2
MDL-2-1/4
MDL-2-1/2
MDL-3
MDL-4
MDL-5
MDL-6
MDL-6-1/4
MDL-7
MDL-8
MDL-9
MDL-10
MDL-15
MDL-20
MDL-25
MDL-30
*
**
†
‡
Traditional Ferrule Fuses - Ferrule Type
250V
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
35A
100A
100A
100A
100A
100A
100A
200A
200A
200A
200A
200A
200A
-
-
-
-
-
-
Typical DC Cold
Resistance**
(ohms)
38.000
15.900
9.850
4.680
4.115
3.200
2.300
2.800
1.725
0.822
0.525
0.320
0.250
0.173
0.068
0.096
0.067
0.035
0.023
0.018
0.018
0.018
0.011
0.009
0.008
0.006
0.002
0.001
0.001
Typical
Melting I
2
t†
AC
0.0046
0.0420
0.0422
0.116
0.314
0.447
0.412
0.982
1.656
4.343
11.498
86.2
22.7
62.3
49.6
63.1
67.5
19.3
32.0
37.4
38.7
42.7
47.8
51.5
64.4
354.0
2914.0
15221.0
15581.0
Typical
Voltage
Drop‡
2.79
1.95
1.52
1.05
0.972
0.965
0.808
1.46
1.27
1.01
0.995
0.722
0.721
0.644
0.535
0.410
0.345
0.187
0.160
0.155
0.152
0.140
0.119
0.124
0.114
0.130
0.530
0.30
0.40
Interrupting Ratings (Interrupting ratings were measured at 70% - 80% power factor on AC)
DC Cold Resistance (Measured at
≤10%
of rated current)
Typical Melting I
2
t (A
2
Sec) (I
2
t was measured at listed interrupting rating and rated voltage.)
Typical Voltage Drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current)
OC-88
1/4" x 1-1/4" Fuses
MDL Series, Time Delay, Glass Tube
TIME CURRENT CURVE
CURRENT IN AMPERES
1000
900
800
700
600
500
6000
7000
8000
9000
10000
1000
900
800
700
600
500
400
300
200
100
90
80
70
60
50
40
30
20
10
9
8
7
6
5
4
3
2000
3000
4000
600
700
800
900
1000
5000
60
70
80
90
100
200
300
400
500
6
7
8
9
10
20
30
40
50
1
2
3
4
5
200
2
3-2/10
300
1-1/4
1-1/2
400
1-6/10
5
6-1/4
10
15
20
25
30
100
90
80
70
60
50
40
30
20
TIME IN SECONDS
10
9
8
7
6
5
4
3
40
TIME IN SECONDS
2
2
1
.9
.8
.7
.6
.5
.4
.3
1
.9
.8
.7
.6
.5
.4
.3
.2
.2
.1
.09
.08
.07
.06
.05
.04
.03
.1
.09
.08
.07
.06
.05
.04
.03
.02
.02
.01
1
2
3
4
5
6
7
8
9
10
20
30
40
50
60
70
80
90
100
200
300
400
500
600
700
800
900
1000
2000
3000
4000
5000
.01
6000
7000
8000
9000
10000
CURRENT IN AMPERES
PACKAGING CODE
Packaging Code
BK
BK1
BK8
Description
100 pieces of fuses packed into a cardboard carton
1,000 pieces of fuses packed into a cardboard carton
8,000 pieces of fuses packed into a cardboard carton
OPTION CODE
Option Code
B
V
-R
Description
Board Washable - Hermetically sealed to withstand aqueous cleaning
Axial leads - copper tinned wire with nickel plated brass overcaps
RoHS compliant version
Traditional Ferrule Fuses - Ferrule Type
Visit us on the web at:
www.cooperbussmann.com
North America
Cooper Electronic Technologies Cooper Bussmann
1225 Broken Sound Parkway NW P.O. Box 14460
St. Louis, MO 63178-4460
Suite F
Tel: 1-636-394-2877
Boca Raton, FL 33487-3533
Fax: 1-800-544-2570
Tel: 1-561-998-4100
Fax: 1-561-241-6640
Toll Free: 1-888-414-2645
Europe
Cooper Electronic Technologies Cooper Electronic Technologies
Avda. Santa Eulalia, 290
Cooper (UK) Limited
08223
Burton-on-the-Wolds
Terrassa, (Barcelona), Spain
Leicestershire • LE12 5TH UK
Tel: +34 937 362 812
Tel: +44 (0) 1509 882 737
+34 937 362 813
Fax: +44 (0) 1509 882 786
Fax: +34 937 362 719
Asia Pacific
Cooper Electronic Technologies
1 Jalan Kilang Timor
#06-01 Pacific Tech Centre
Singapore 159303
Tel: +65 278 6151
Fax: +65 270 4160
OC-89