Littelfuse 221 User Manual

Designed to IEC Standard

Axial Lead and Cartridge Fuses

5 x 20 mm Time Lag Fuse (Slo-Blo

®

Fuse) 215/221 Series

297

www.littelfuse.com

8

AXIAL LEAD AND

CARTRIDGE FUSES

• Designed to International (IEC) Standards for use globally.

• Meets the IEC 60127-2, Sheet 5 specification for Time Lag Fuses.

• Available in Cartridge and Axial Lead Form.

• Available in ratings of .2 to 10 amperes.

• High breaking capacity.

ELECTRICAL CHARACTERISTICS:

% of Ampere Ampere Opening

Rating Rating Time

150%

1–3.15 60 minutes, Minimum

4– 6.3 60 minutes, Minimum

210%

1–3.15 30 minutes, Maximum

4– 6.3 30 minutes, Maximum

275%

1–3.15 1 sec., Min.; 80 sec. Max.

4– 6.3 1 sec., Min.; 80 sec. Max.

400%

1–3.15 .095 sec., Min.; 5 sec. Max.

4– 6.3 .150 sec., Min.; 5 sec. Max.

.2– .4 .010 sec., Min.; .15 sec., Max.

1000% .5–3.15 .010 sec., Min.; .1 sec., Max.

4– 6.3 .020 sec., Min.; .1 sec. Max.

AGENCY APPROVALS: Sheet V IEC 60127-2:* SEMKO approved

1A-6.3A. BSI and VDE approved 1.0-6.3 amps. METI approved 1-10A.
Recognized under the Components Program of Underwriters
Laboratories and recognized by CSA.

INTERRUPTING RATING: 1500 amperes.

ORDERING INFORMATION:

Average Time Current Curves

*IEC Standards for 5 x 20mm fuses do not include ratings above

6.3 amperes, but are under consideration.
IEC 60127-2, Sheet 5 does not include ratings below 1 ampere (under

consideration by IEC).

1

221 Series is used for North American ordering.

1

®

®

V

DE

Cartridge Axial Lead Nominal Nominal

Catalog Catalog Ampere Voltage Resistance Melting I2t
Number Number Rating Rating Cold Ohms A2Sec.

215.200 221.200 .200* 250 1.750 0.37

215.250 221.250 .250* 250 1.170 0.56

215.315 221.315 .315* 250 0.873 1.08

215.400 221.400 .400* 250 0.560 1.45

215.500 221.500 .500* 250 1.080 0.34

215.630 221.630 .630* 250 0.660 0.56

215.800 221.800 .800* 250 0.436 0.954
215 001 221 001 1 250 0.110 1.05
215 1.25 221 1.25 1.25 250 0.085 2.05
215 01.6 221 01.6 1.6 250 0.0588 3.90
215 002 221 002 2 250 0.043 6.95
215 02.5 221 02.5 2.5 250 0.0312 10.65
215 3.15 221 3.15 3.15 250 0.0220 21.2
215 004 221 004 4 250 0.0163 38.7
215 005 221 005 5 250 0.0125 82.85
215 06.3 221 06.3 6.3 250 0.0099 132.5
215 008 221 008 8* 250 0.0078 209.5
215 010 221 010 10* 250 0.0060 360.5

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215 000

5

(.197)

100

10

1

TIME IN SECONDS

0.1

0.01

20

(.787)

5.25

(.207)

215 000 XE 215 000 XW
221 000

1A

22.5 MAX
(.886)

1.6A

1.25A

.635

(.025)

40

5.02

(1.58)

±0.5

10A

8A

6.3A

5A4A3.15A

2.5A

2A

20±0.5

10
±2

25±0.5

0.001

CURRENT IN AMPERES

5001001010.10.05