Catalog Symbol and Ampere Ratings
LPJ-70SP LPJ-125SP LPJ-250SP LPJ-500SP
LPJ-80SP LPJ-150SP LPJ-300SP LPJ-600SP
LPJ-90SP LPJ-175SP LPJ-350SP —
LPJ-100SP LPJ-200SP LPJ-400SP —
LPJ-110SP LPJ-225SP LPJ-450SP —
Dimensional Data
Catalog Symbol: LPJ-_SP
Dual-Element, Time-Delay – 10 seconds (minimum) at 500%
rated current
Current-Limiting
Ampere Rating: 70 to 600A
Voltage Rating: 600Vac (or less)*
Interrupting Rating: 300,000A RMS Sym.
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
*0-600A rated 300Vdc and 20 KAIC.
†Meets all performance requirements of UL Standard 248-8 for Class J fuses.
Carton Quantity and Weight
Ampere Carton Weight*
Ratings Qty. Lbs. Kg.
70–100 5 1.69 0.767
110–200 5 4.21 1.910
225–400 1 1.67 0.758
450–600 1 2.80 1.270
*Weight per carton.
General Information:
• 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.
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.
450A to 600A
225A to 400A