Bussmann
?
LOW-PEAK? LPJ
Dual-Element Time-Delay Fuses 1-60 Amps
Class J – 600 Volt
General Information:
Dimensional Data
? True dual-element fuses with a minimum 10 second time-
2.25"
(– 0.03) delay at 500% overload.
.81" ? Long time-delay minimizes needless fuse openings due to
.5" (– 0.03) temporary overloads and transient surges.
? Can often be sized for back-up protection against motor
1A to 30A
burnout from overload or single-phasing if other overload
2.38" protective devices fail.
(– 0.03)
? High interrupting rating to safely interrupt overcurrents up to
.63" 300,000A.
? High degree of current limitation due to the fast speed-of-
35A to 60A 1.06" response to short-circuits.
(– 0.03) ? Faster response to damaging short-circuit currents than
mechanical overcurrent protective devices.
Catalog Symbol: LPJ-_SP
? Reduces let-through thermal and magnetic forces in order
Dual-Element, Time-Delay – 10 seconds (minimum) at 500%
to protect low withstand rated components.
rated current ? Proper sizing provides “no damage” Type “2” coordinated
Current-Limiting protection for NEMA and IEC motor control in accordance
Ampere Rating: 1 to 60A with IEC Standard 947-4-1.
Voltage Rating: 600Vac (or less) ? Dual-element fuses have lower resistance than ordinary fuses
300Vdc (or less) so they run cooler.
Interrupting Rating:300,000A RMS Sym. (UL) ? Lower watts loss reduces power consumption.
? Unique dimensions assure that another class of fuse with
100,000A dc
a lesser voltage rating, interrupting rating or current-Iimiting
Agency Information:
ability cannot be substituted.
UL Listed — Special Purpose*, Guide JFHR, FileE56412
? Space-saving package for equipment down sizing.
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 Recommended fuseblocks/fuseholders for
LPJ-1SP LPJ-3SP LPJ-7SP LPJ-25SP Class J 600V fuses
LPJ-1(cid:218)‰￠SP LPJ-3-(cid:219)‰`…SP LPJ-8SP LPJ-30SP See Data Sheets listed below
LPJ-1-(cid:223)‰`…SP LPJ-3(cid:218)‰“SP LPJ-9SP LPJ-35SP ? Finger-safe fuseholders - 1152
LPJ-1-?‰`…SP LPJ-4SP LPJ-10SP LPJ-40SP ? Open fuseblocks - 1114
LPJ-2SP LPJ-4(cid:218)‰“SP LPJ-12SP LPJ-45SP ? Open pyramid fuseblocks - 1108
LPJ-2(cid:218)‰￠SP LPJ-5SP LPJ-15SP LPJ-50SP
LPJ-2(cid:218)‰“SP LPJ-5(cid:223)‰`…SP LPJ-17(cid:218)‰“SP LPJ-60SP
LPJ-2?‰`…SP 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.
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.
Form No. LPJ 1-60
Page 1 of 3
10-2-02 SB02295 Data Sheet: 1006Bussmann
?
LOW-PEAK? LPJ
Dual-Element Time-Delay Fuses 1-60 Amps
Class J – 600 Volt
AMPERE
RATING
Form No. LPJ 1-60
Page 2 of 3
Data Sheet: 1006
A1 A3 A6
300
100
10
1
.1
.01
SDNOCES
NI
EMIT
1
01
A01 A51 A03 A06
000,1
200
CURRENT IN AMPERES
001
Time-Current Characteristic Curves–Average Melt
10-2-02 SB02295Bussmann
?
LOW-PEAK? LPJ
Dual-Element Time-Delay Fuses 1-60 Amps
Class J – 600 Volt
Current Limitation Curves
The only controlled copy of this Data Sheet is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is
intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change
design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information contained

Bussmann LPJ-SP系列是一款專為電力系統(tǒng)設(shè)計(jì)的延時(shí)限流特快熔斷器。該產(chǎn)品采用了獨(dú)特的技術(shù)，能夠在短路電流通過(guò)時(shí)迅速且有效地切斷電路，提供極高的短路保護(hù)性能。"LPJ-SP"表示該型號(hào)可能具有特殊的功率等級(jí)、電壓規(guī)格和電流容量范圍，其"延時(shí)限流特性"意味著在發(fā)生短路故障時(shí)，熔斷器不會(huì)立即斷開(kāi)，而是經(jīng)過(guò)一段預(yù)設(shè)的時(shí)間延遲（延時(shí)特性），這段時(shí)間可以為相關(guān)保護(hù)設(shè)備如繼電器或控制器提供充足的信號(hào)處理時(shí)間，以避免誤動(dòng)作或者確保更全面的后備保護(hù)得以啟動(dòng)。因此，Bussmann LPJ-SP熔斷器適用于對(duì)電力系統(tǒng)瞬態(tài)過(guò)載有較高要求、需要可靠延時(shí)保護(hù)措施的場(chǎng)合，如電機(jī)控制、照明線路以及電力電子設(shè)備等應(yīng)用。