Bussmann LPJ Data Sheet

LOW-PEAK

®

LPJ

Dual-Element Time-Delay Fuses 1-60 Amps
Class J – 600 Volt

Form No. LPJ 1-60

Page 1 of 3

Data Sheet: 1006

Bussmann

®

10-2-02

SB02295

Catalog Symbol: LPJ-_SP
Dual-Element, Time-Delay – 10 seconds (minimum) at 500%

rated current

Current-Limiting

Ampere Rating: 1 to 60A
Voltage Rating: 600Vac (or less)

300Vdc (or less)

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-1SP LPJ-3SP LPJ-7SP LPJ-25SP

LPJ-1⁄Ω¢SP LPJ-3-¤Ω¡ºSP LPJ-8SP LPJ-30SP

LPJ-1-flΩ¡ºSP LPJ-3⁄Ω™SP LPJ-9SP LPJ-35SP

LPJ-1-°Ω¡ºSP LPJ-4SP LPJ-10SP LPJ-40SP

LPJ-2SP LPJ-4⁄Ω™SP LPJ-12SP LPJ-45SP

LPJ-2⁄Ω¢SP LPJ-5SP LPJ-15SP LPJ-50SP

LPJ-2⁄Ω™SP LPJ-5flΩ¡ºSP LPJ-17⁄Ω™SP LPJ-60SP

LPJ-2°Ω¡ºSP LPJ-6SP LPJ-20SP

Carton Quantity and Weight

Ampere Carton

Weight**

Ratings Qty. Lbs. Kg.

1–30 10 1.09 0.494
35–60 10 1.78 0.808
**Weight per carton.

General Information:

• True dual-element fuses with a minimum 10 second time­delay 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-of­response 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.

Dimensional Data

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.

Recommended fuseblocks/fuseholders for
Class J 600V fuses

See Data Sheets listed below

• Finger-safe fuseholders - 1152

• Open fuseblocks - 1114

• Open pyramid fuseblocks - 1108

2.25"

(± 0.03)

.81"

.5"

(± 0.03)

1A to 30A

2.38"

(± 0.03)

.63"

35A to 60A

1.06"

(± 0.03)

LOW-PEAK

®

LPJ

Dual-Element Time-Delay Fuses 1-60 Amps
Class J – 600 Volt

Form No. LPJ 1-60

Page 2 of 3

Data Sheet: 1006

Bussmann

®

AMPERE
RATING

1A

3A

6A

300

100

10

1

.1

.01

TIME IN SECONDS

10A

15A

30A

60A

1,000

10

1

CURRENT IN AMPERES

200

100

Time-Current Characteristic Curves–Average Melt

10-2-02

SB02295