Technical Data 2002

Effective June 2017

Supersedes July 2011

Product features

Agency information

• UL Listed Card: MDA 2/10 - 20A (Guide JDYX, File E19180)

• UL Recognized Card: MDA 25 - 30A (Guide JDYX2, File

E19180)

• CSA Certification Card: MDA 2/10 - 20 (Class No. 1422-01)

• CSA Component Acceptance: MDA 25-30A (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 213, Test

Condition J

•

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)

MDA

1/4” x 1 1/4” Time-delay ceramic tube fuses

•

Time-delay

•

Optional axial leads available

•

1/4” x 1-1/4” (6.35 x 31.75mm) physical size

•

Ceramic tube, nickel-plated brass endcap construction

•

UL Listed product meets standard 248-14

Ordering

•

Specify packaging, product and option code.

Specifications

AC Interrupting

Part

Voltage Rating

Rating* (A)

DC Interrupting

Rating (A) 125V

Typical DC Cold

Typical

Typical Voltage

Number

Vac

Vdc

250V

125V

Resistance** (Ω)

Drop‡

MDA-1/4-R

250

-

35

10000

-

8.7

0.748

4.00

MDA-1/2-R

250

-

35

10000

-

1.78

2.53

1.42

MDA-3/4-R

250

-

35

10000

-

0.82

8.58

1.31

MDA-1-R

250

-

35

10000

-

0.56

12.21

1.03

MDA-1-1/2-R

250

-

100

10000

-

0.2565

27.5

0.691

MDA-2-R

250

-

100

10000

-

0.17

70.4

0.623

MDA-2-1/2-R

250

-

200

10000

-

0.068

31.79

0.213

MDA-3-R

250

-

200

10000

-

0.0525

44.99

0.182

MDA-4-R

250

-

200

10000

-

0.03575

147.4

0.162

MDA-5-R

250

-

200

10000

-

0.0256

380.49

0.145

MDA-6-R

250

-

200

10000

-

0.02035

587.73

0.141

MDA-7-R

250

-

200

10000

-

0.0165

638.33

0.137

MDA-8-R

250

-

200

10000

-

0.013

1038.4

0.134

MDA-10-R

250

-

200

10000

-

0.00925

1620.43

0.135

MDA-12-R

250

-

750

10000

-

0.00755

125.18

0.128

MDA-15-R

250

-

750

10000

-

0.00565

336.82

0.107

MDA-20-R

250

125

1500

10000

10000

0.004065

483.45

0.095

MDA-25A-R

250

125

1500

10000

10000

0.0031

734.69

0.105

MDA-30A-R

250

125

1500

10000

10000

0.002465

1096.7

0.110

* Interrupting Ratings (Measured at 70% - 80% power factor on AC. The interrupting ratings for 25A, 30A were measured at 90% - 100% power factor on AC)

** DC Cold Resistance (Measured at _<10% of rated current)

‡ Typical 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.