Special Application Fuses
242 Series Barrier Fuse
RoHS
242 Series Barrier Fuse
Description
The 242 Series fuse is designed for barrier circuits in intrinsic
safety applications relating to Hazardous Locations. Ranging
from 40mA to 250mA, the 242 Series provides overcurrent
protection solutions to fit many Hazardous Location
barrier applications.
Features
• High interrupting rating
suitable for intrinsic
safety protection of
hazardous locations
equipment.
• Available in both axial
lead and surface mount.
• RoHS compliant and
Halogen-free.
Agency Approvals
Agency
Agency File Number
Ampere Range
Applications
E10480
0.040A - 0.250A
• Intrinsic saftey electrical
equipment; Electrical
connections and
• Barriers providing
intrinsically safe outputs to
Hazardous Locations
components;Test
equipment
Electrical Characteristics
% of Ampere
Rating
OpeningTime
Additional Information
100%
300%
4 hours, Minimum
10 seconds, Maximum
0.002 seconds, Maximum
1000%
Datasheet
Resources
Samples
Electrical Characteristics
Agency
Approvals
Nominal
Body
Color
Coding
Ampere Rating
Amp Code
(A)
Interrupting
Rating
Cold
Nominal Melting
I2t (A2 Sec.)
Resistance
(Ohms)
0.040
0.050
0.080
0.100
0.125
0.160
0.200
0.250
.040
.050
.080
.100
.125
.160
.200
.250
Gold
Red
16.48
11.34
8.19
3.60
3.78
3.00
2.68
1.6
0.000078
0.000103
0.000214
0.000977
0.001026
0.00157
0.0025
x
x
x
x
x
x
x
x
Green
Blue
4000A @
250VAC/VDC
Orange
Violet
Brown
Black
0.00579
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at:
www.littelfuse.com/disclaimer-electronics.
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 05/31/18