Hazardous Area Fuses

326

www .littelfuse .com

(.512")

(.394")

(.025")

(.315")

(.197")

• Meets Barrier Network Standards (EN50020) for hazardous applications.

• High interrupting rating. Meets the 1500A minimum.

• Available in both axial lead and surface mount.

ELECTRICAL CHARACTERISTICS:

% of Ampere Rating

Opening Time

110%

4 hours, Minimum

300%

10 seconds, Maximum

1000%

0.002 seconds, Maximum

fix UR. For Axial Leaded version add packaging suffix UA. For Axial

Leaded version, taped add packaging suffix UAT1.

ORDERING INFORMATION:

Nominal

Nominal

Catalog

Ampere

Color

Resistance

Melting I

Number

Rating

Coding

Cold Ohms

A

0242.050

.050

Red

11.34

0.000103

0242.080

.080

Green

8.19

0.000214

0242.100

.100

Blue

3.60

0.000977

0242.160

.160

Violet

3.00

0.00157

0242.200

.200

Brown

2.68

0.0038

0242.250

.250

Black

1.6

0.00579

• Designed to allow equipment to meet “Intrinsically Safe” certification for

applications in gas plants, petrochemical and processing industries

where there is a danger of gas explosion from faulty circuits.

• Hermetically sealed.

ELECTRICAL CHARACTERISTICS:

% of Ampere Rating

Opening Time

100%

4 hours, Minimum

200%

5 seconds, Maximum

IEC 60079-11.

INTERRUPTING RATINGS:

50 amperes at 125 VAC

300 amperes at 125 VDC

ORDERING INFORMATION:

(.119")

(.331")

(.181")

(.075")

(.119")

(.331")

(.181")

(.075")

(.025")

Maximum

Nominal

Catalog

Ampere

Voltage

Resistance

Melting I

Number

Rating

Drop

Cold Ohms

A

0259.062

.062

2.1

8.1

0.00016

0259.125

.125

1.3

2.4

0.0012

0259.250

.250

0.83

0.87

0.0095

0259.375

.375

0.81

0.46

0.025

0259.500

.500

0.78

0.32

0.07

0259.750

.750

0.23

0.19

0.062

0259001.

1

0.24

0.14

0.01

Schedule of limitations.

1) The fuse must be so mounted that creepage and clearance distances meet the requirements

of Table 2 of EN50020 :1977 or Table 4 of EN50020 :1994 (equivalent to IEC 60079-11 4th

Edition 1999).

2) When used in intrinsically safe apparatus it will be necessary to determine a surface

temperature classification for the fuse.

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