POWR-SPEED
®
Fuse Datasheet
PSR SERIES HIGH-SPEED SQUARE BODY FUSES
Semiconductor Fuses • Flush End • 40 A - 2000 A
S
Specifications
Voltage Range
Amperage Range
Interrupting Range
Time Constant
Microswitch
Mounting
Material
Approvals
AC: 550 V - 1300 V
DC: 500 V - 1000 V
40 A - 2000 A
AC: 100 kA - 200 kA
DC: 150 kA
10ms
Yes
Flush-End Style
Body: Ceramic
Contacts: Plated Brass
UL 248-13 Recognized (File: E71611)
C-UR-US (File: E71611)
IEC 60269-4 (Class aR)
CCC
Description
Littelfuse PSR Series High-Speed Square Body Fuses are
specially designed for protection of power semiconductor
devices such as diodes, triacs, IGBTs, SCRs, MOSFETs
and other solid state devices that are typically designed
into power conversion and power conditioning equipment.
Variable frequency drives, inverters, UPS, rectifiers and
soft-starters are examples of typical equipment designed
with sensitive power semiconductor devices that cannot
withstand any line surge or overcurrent conditions and
require high-speed protection.
Littelfuse POWR-SPEED
®
PSR Series products offer
optimized circuit protection at the extremely fast speed
required to protect modern day power conversion devices.
Such products are commonly found in numerous applications
including pulp and paper industries, cranes and heavy-lifting
equipment, processing industries, wastewater treatment
plants and various large factories and MRO facilities.
Environmental
Operating Temperature
Storage Temperature
Country of Origin
RoHS Compliant, REACH
-55 C° to +125 C°
Up to +35 C° with Relative
Humidity <65%
Mexico
Ordering Part Number
PSR 030 FL 0550 Z
Series
Case Size
30, 31, 32, 33, 70, 71, 72,73
Features/Benefits
Packing Quantity
Z = (2-3 Pcs/Box)
Best in Class DC performance
Extremely current limiting
Superior cycling capability
Global certification cURus, CCC, IEC
Direct bus-bar mount design
Visual and optional microswitch fuse blown indication
Low watt-loss design
Compliance with US and Canadian requirements
Class aR performance according to IEC60269-4
Termination
FL - Flush End Metric Thread
FS - Flush End Inches Thread
Amperage
Catalog Number
SERIES
CASE
SIZE
TERMINATION
AMPERAGE
CATALOG
NUMBER
ORDERING PART
NUMBER
Applications
PSR
030
FL
0550
PSR030FL0550
PSR030FL0550Z
Power Conversion Devices (UPS, Inverter,
Rectifiers, Drives)
DC Systems (DC Common Bus, DC Injection Braking)
Battery Protection Application (Energy Storage Systems)
Electric Vehicle Charging Stations
Heaters and Power Supplies
Recommended Accessories
Microswitch:
MS3H1000C (Case Size 30 to 33)
MS7H1500C (Case Size 70 to 73)
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© 2018 Littelfuse POWR-GARD
®
Products
Rev: 041918
PCB Design
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