Littelfuse PICO 305-UL913 Series - Manual

© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/05/14
Special Application Fuses
PICO ® 305 Series Fuses - 277V UL913 Intrinsically Safe Fuse
PICO ® 305 Series - 277V UL913 Intrinsically Safe Fuse
Description
Agency Approvals
Agency Agency File Number
ATEX DEMKO 13 ATEX 1200U
E358130
IECEx IECEx UL 13.0077U
Electrical Characteristics for Series
Features
Applications
% of Ampere
Rating
Opening Time
110% 4 Hours, Minimum
300% 10 Seconds, Maximum
1000% 0.002 Seconds, Maximum
• High Interrupting Rating of
1500A
• Well suited for 277V
application
• Current rating options
from 0.050 to 0.750A
• Designed for operation
in a range of hazardous
environments
• Sealed
Electrical Specifications by Items
1) The fuse must be mounted so that creepage and clearance distances aren’t impaired in any way.
2) The fuse is suitable for use in intrinsically safe equipment and associated apparatus for voltage not exceeding 375V peak.
3) Maximum surface temperature rise at 170% rated current 200mA=80°C, 250mA = 84°C, 500mA = 56°C, and 750mA = 84°C.
Ampere
Rating
(A)
Interrupting Rating Amp Code
Nominal
Cold Resistance
(Ohms)
Nominal
Melting
I 2 t (A 2 Sec.)
Agency Approvals
ATEX IECEx
0.050
1500A @ 277VAC/DC
.050 12.00 0.00019 x x x
0.080 .080 8.19 0.00035 x x x
0.100 .100 5.00 0.00070 x x x
0.160 .160 3.00 0.00202 x x x
0.200 .200 2.68 0.00288 x x x
0.250 .250 1.6 0.00662 x x x
0.500 .500 0.46 0.04462 x x x
0.750 .750 0.27 0.13448 x x x
The PICO 305-Series fuse offer a range of encapsulated fuses
approved under UL 913 standard for Intrinsically Safe Electrical
Equipment to operate in hazardous locations. Ideal for use in
oil, gas, mine, chemical, and pharmaceutical industries, the
PICO 305-Series fuse was designed to limit the energy and
temperature generated during its operation. The fuse design
and its encapsulant are suitable for use in an intrinsically safe
apparatus and associated apparatus for voltage not exceeding
277V.
• Testing, measuring or
processing electronic and
electrical equipment
• Motor controllers
• Communication handsets
• Process control and
automations
• Sensors
• Lighting
• Flowmeters
Reference Standards
Agency Standards
ATEX
EN 60079-0, EN 60079-11,
EN 60079-26
IECEx
IEC 60079-0, IEC 60079-11,
IEC 60079-26
UL
UL 913, UL 60079-0,
UL 60079-11
cUL
CAN/CSA C22.2 No. 157,
CAN/CSA C22.2 No. 60079-0,
CAN/CSA C22.2 No. 60079-11