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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%
300%
1000%
4 hours, Minimum
10 seconds, Maximum
0.002 seconds, Maximum
INTERRUPTING RATINGS: 4000 amperes at 250VAC/VDC
PACKAGING (500 pcs): For surface mount version add packaging suf-
fix UR. For Axial Leaded version add packaging suffix UA. For Axial
Leaded version, taped add packaging suffix UAT1.
ORDERING INFORMATION:
Nominal
Resistance
Cold Ohms
11.34
8.19
3.60
3.00
2.68
1.6
Nominal
Melting I2t
A2 Sec.
0.000103
0.000214
0.000977
0.00157
0.0038
Catalog
Number
Ampere
Rating
Color
1.90mm
(.075")
1.90mm
(.075")
Coding
4.60mm
4.60mm
(.181")
(.181")
0242.050
0242.080
0242.100
0242.160
0242.200
0242.250
.050
.080
.100
.160
.200
.250
Red
Green
Blue
Violet
Brown
Black
3.02mm
(.119")
3.02mm
(.119")
.635mm
(.025")
8.40mm
(.331")
8.40mm
(.331")
0.00579
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%
200%
4 hours, Minimum
5 seconds, Maximum
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:
Maximum
Resistance
Cold Ohms
Nominal
Melting I2t
A2 Sec.
0.00016
0.0012
0.0095
0.025
0.07
Catalog
Number
Ampere
Rating
Voltage
Drop
2.1
1.3
0.83
0.81
0.78
0.23
0.24
(.512")
13mm
0259.062
0259.125
0259.250
0259.375
0259.500
0259.750
0259001.
.062
.125
.250
.375
.500
.750
1
8.1
2.4
0.87
0.46
0.32
0.19
0.14
(.315")
8mm
(.197")
5mm
0.062
0.01
(.025")
.635mm
(.394")
10mm
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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