Bussmann
®
LOW-PEAK
®
LPJ_SPI
6-60 Amps
General Information:
• Permanent 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
so 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.
Dual-Element Time-Delay Fuses
Class J – 600 Volt
Dimensional Data
2.25"
(± 0.03)
.81"
.5" (± 0.03)
1A to 30A
2.38"
(± 0.03)
.63"
35A to 60A
1.06"
(± 0.03)
Catalog Symbol:
LPJ_SPI
Dual-Element, Time-Delay – 10 seconds (minimum) at 500%
rated current
Current-Limiting
Ampere Rating:
6 to 60A
Voltage Rating:
600Vac (or less)
300Vdc (or less): 35-60A
Interrupting Rating:
300,000A RMS Sym. (UL)
100,000A dc
Agency Information:
UL Listed — Special Purpose*, Guide JFHR, File E56412
CSA Certified, 200,000 AIR, Class J per CSA 22.2 No. 248.8
Class 1422-02, File 53787
*Meets all performance requirements of UL Standard 248-8 for Class J fuses.
Catalog Symbol and Ampere Ratings
LPJ-6SPI
LPJ-7SPI
LPJ-8SPI
LPJ-9SPI
LPJ-10SPI
LPJ-12SPI
LPJ-15SPI
LPJ-17⁄Ω™SPI
LPJ-20SPI
LPJ-25SPI
LPJ-30SPI
LPJ-35SPI
LPJ-40SPI
LPJ-45SPI
LPJ-50SPI
LPJ-60SPI
Recommended fuseblocks/fuseholders for
Class J 600V fuses
See Data Sheets listed below
• Finger-safe fuseholders - 1152
• Open fuseblocks - 1114
• Open pyramid fuseblocks - 1108
Carton Quantity and Weight
Ampere
Ratings
6–30
35–60
**Weight per carton.
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.
Carton
Qty.
10
10
Weight**
Lbs.
1.09
1.78
Kg.
0.494
0.808
For non-indicating version, the LPJ_SP
is available. See Data Sheet: 1006
8-26-04
SB04295
Form No. LPJ_SPI 6-60
Page 1 of 3
Data Sheet: 1062
COOPER [ COOPER BUSSMANN, INC. ]
