Bussmann
®
LOW-PEAK
®
Dual-Element, Time-Delay Fuses
Class J – 600 Volt
Dimensional Data
4.63"
(– 0.03)
3.63"
2.63"
LPJ_SPI
70 to 600A
.75"
1.13" (– 0.03)
1" .28"
.43"
70A to 100A
5.75"
(– 0.03)
4.38"
3.0"
110A to
200A
.43"
1.13"
.28"
.13"
1.63" (– 0.03)
1.38"
.19"
Catalog Symbol:
LPJ-_SPI
Dual-Element, Time-Delay – 10 seconds (minimum) at 500%
rated current
Current-Limiting
Ampere Rating:
70 to 600A
Voltage Rating:
ac: 600V (or less)
dc: 300V (or less)
Interrupting Rating:
ac: 300,000A RMS Sym.
dc: 100,000A
Agency Information:
UL Listed – Special Purpose†, Guide JFHR, File E56412
CSA Certified, Class J per CSA C22.2 No. 248.8,
Class 1422-02, File 53787
†Meets all performance requirements of UL Standard 248-8 for Class J fuses.
225A to 400A
450A to 600A
Catalog Symbol and Ampere Ratings
LPJ-70SPI
LPJ-80SPI
LPJ-90SPI
LPJ-100SPI
LPJ-110SPI
LPJ-125SPI
LPJ-150SPI
LPJ-175SPI
LPJ-200SPI
LPJ-225SPI
LPJ-250SPI
LPJ-300SPI
LPJ-350SPI
LPJ-400SPI
LPJ-450SPI
LPJ-500SPI
LPJ-600SPI
—
—
—
Carton Quantity and Weight
Ampere
Ratings
70–100
110–200
225–400
450–600
*Weight per carton.
Carton
Qty.
5
5
1
1
Weight*
Lbs.
1.69
4.21
1.67
2.80
Kg.
0.767
1.910
0.758
1.270
Recommended fuseblocks for
Class J 600V fuses
See Data Sheet: 1114
For non-indicating version, the LPJ_SP
is available. See Data Sheet: 1007.
General Information:
• Permanent replacement fuse indication.
• True dual-element fuses with a minimum 10 second time-
delay at 500% overload.
• Long time-delay minimizes needless fuse openings due to
temporary overloads and transient surges.
• Can often be sized for back-up protection against motor
burnout from overload or single-phasing if other overload
protective devices fail.
• High interrupting rating to safely interrupt overcurrents up
to 300,000A.
• High degree of current-limitation due to the fast speed-of-
response to short-circuits.
• Faster response to damaging short-circuit currents than
mechanical overcurrent protective devices.
• Reduces let-through thermal and magnetic forces in order
to protect low withstand rated components.
• Proper sizing provides “no damage” Type “2” coordinated
protection for NEMA and IEC motor control in accordance
with IEC Standard 947-4-1.
• Dual-element fuses have lower resistance than ordinary
fuses, hence they run cooler.
• Lower watts loss reduces power consumption.
• Unique dimensions assure that another class of fuse with a
lesser voltage rating, interrupting rating or current-Iimiting
ability cannot be substituted.
• Space-saving package for equipment down sizing.
Form No. LPJ 70-600
Page 1 of 3
Data Sheet: 1063
8-26-04
SB04295
CE logo denotes compliance with European Union Low Voltage Directive
(50-1000Vac, 75-1500Vdc). Refer to Data Sheet: 8002 or contact
Bussmann Application Engineering at 636-527-1270 for more information.
COOPER [ COOPER BUSSMANN, INC. ]
