Description
Time Delay, ceramic tube
Optional axial leads available
1/4 x 1-1/4 (6.3mm x 32mm) physical size
Ceramic tube, nickel-plated brass endcap construction
UL Listed product meets standard 248-14
RoHS Compliant version available (-R option)
(all amperages <= 15A)
Agency Information
UL Listed Card: MDA 2/10 - 20A (Guide JDYX,
File E19180)
UL Recognized Card: MDA25 - 30A (Guide JDYX2,
File E19180)
CSA Certification Card: MDA 2/10 - 15
(Class No.1422-01)
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 thru30A – MIL-STD-202,
Method 204, Test Condition C (Except 5g, 500HZ) Ordering
Specify product code,option code and packaging code
Dimensions (mmin)
Drawing Not to Scale
SPECIFICATIONS
Product Voltage AC Interrupting DC Interrupting Typical DC Cold Typical Typical
Code Rating Rating* Rating Resistance** Melting I2t† Voltage
AC DC 250V 125V 125V (ohms) AC Drop‡
MDA-1/4 250V - 35A 10000A - 9.325 0.68 4.00
MDA-1/2 250V - 35A 10000A - 1.925 2.3 1.42
MDA-3/4 250V - 35A 10000A - 0.8555 7.8 1.31
MDA-1 250V -35A 10000A - 0.560 11.1 1.03
MDA-1-1/2 250V - 100A 10000A - 0.2585 25.0 0.691
MDA-2 250V - 100A 10000A - 0.1645 64.0 0.623
MDA-2-1/2 250V - 200A 10000A - 0.06685 28.9 0.213
MDA-3 250V - 200A 10000A - 0.0507 40.9 0.182
MDA-4 250V - 200A 10000A - 0.0346 134.0 0.162
MDA-5 250V - 200A 10000A - 0.02355 345.9 0.145
MDA-6 250V - 200A 10000A - 0.01850 534.3 0.141
MDA-7 250V - 200A 10000A - 0.01475 580.3 0.137
MDA-8 250V -200A 10000A - 0.01230 944.0 0.134
MDA-10 250V - 200A 10000A - 0.00858 1491.3 N/A
MDA-12 250V - 750A 10000A - 0.00725 113.8 0.114
MDA-15 250V -750A 10000A -0.00543 206.2 0.107
MDA-20 250V 125V 1500A 10000A 10000A 0.00358 439.5 0.095
MDA-25A 250V 125V 1500A 10000A 10000A 0.00309 667.9 0.105
MDA-30A 250V 125V 1500A 10000A 10000A 0.00243 997.0 0.110
*Interrupting Ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25Amp, 30Amp were measured at 90% - 100% power factor on AC)
** DC Cold Resistance (Measured at 10% of rated current)
Typical Melting I2t(A2Sec) (I2twas measured at listed interrupting rating and rated voltage)
T
ypical Voltage Drop (Voltage drop was measured at 25°C ambient temperature at rated current)
ELECTRICAL CHARACTERISTICS
Rated Current Amp Rating Opening Time
100% None
1/4 - 30A 135% 60 Minutes Max.
200% 120 Seconds Max.
1/4" x 1-1/4" Fuses
MDA Series, Time Delay, Ceramic Tube
TIME INSECONDS
TIME IN SECONDS
CURRENT IN AMPERES
CURRENT IN AMPERES
1/4
1/2
1
2
3-2/10
4
5
6-1/4
10
12
15
20
25
30
TIME CURRENT CURVE
PACKAGING CODE
Packaging Code Description
BK 100 pieces of fuses packed into a cardboard carton
BK1 1,000 pieces of fuses packed into a cardboard carton
BK8 8,000 pieces of fuses packed into a cardboard carton
OPTION CODE
Option Code Description
BBoard Washable - Hermetically sealed to withstand aqueous cleaning
VAxial leads - copper tinned wire with nickel plated brass overcaps
-R RoHS compliant version
Cooper Electronic T
echnologies
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Boynton Beach, FL 33426-8638
T
el: 1-561-752-5000
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.O.Box14460
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T
el: 1-636-394-2877
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Europe
Cooper Electronic T
echnologies
Cooper (UK) Limited
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Leicestershire • LE12 5TH UK
T
el: +44 (0) 1509 882 737
Fax: +44 (0) 1509 882 786
Asia Pacific
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echnologies
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#06-01 Pacific Tech Centre
Singapore 159303
T
el: +65 278 6151
Fax: +65 270 4160
Visit us on the web at:
www.CooperET.com
OC-2545 10/05
©Cooper Electronic
Technologies 2005
North America
1/4" x 1-1/4" Fuses
MDA Series, Time Delay, Ceramic Tube