Hazardous Area Fuses
Barrier Network Fuse 242 Series
•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 |
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300% |
10 seconds, Maximum |
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1000% |
0.002 seconds, Maximum |
INTERRUPTING RATINGS: 4000 amperes at 250VAC/VDC PACKAGING (500 pcs): For surface mount version add packaging suffix UR. For Axial Leaded version add packaging suffix UA. For Axial Leaded version, taped add packaging suffix UAT1.
ORDERING INFORMATION:
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Nominal |
Nominal |
Catalog |
Ampere |
Color |
Resistance |
Melting I2t |
Number |
Rating |
Coding |
Cold Ohms |
A2 Sec. |
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 |
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1.90mm |
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1.90mm |
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4.60mm |
(.075") |
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4.60mm (.075") |
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(.181") |
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(.181") |
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3.02mm |
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3.02mm |
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(.119") |
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.635mm |
(.119") |
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8.40mm |
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(.025") |
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8.40mm |
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(.331") |
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(.331") |
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Safe-T-Plus Fuse 259 Series
•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 |
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200% |
5 seconds, Maximum |
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AGENCY APPROVALS: Meets CENELEC EN500014 to 039 and IEC 60079-11.
INTERRUPTING RATINGS:
50 amperes at 125 VAC
300 amperes at 125 VDC
ORDERING INFORMATION:
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Maximum |
Nominal |
Catalog |
Ampere |
Voltage |
Resistance |
Melting I2t |
Number |
Rating |
Drop |
Cold Ohms |
A2 Sec. |
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.
(.512") 13mm
(.315") 8mm
(.197") (.025") 5mm
.635mm
(.394") 10mm
326
w w w . l i t t e l f u s e . c o m