Electronic Supply by Industrial Electronics in Milwaukee Wisconsin : Potter Brumfield, Radio Shack Stores in Milwaukee: LPJ-SP Class J Low-Peak® Dual-element Time-delay Fuses

LPJ-SP Class J Low-Peak® Dual-element Time-delay Fuses
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synscon on 03/06/2015 10:55:00


LPJ_SP Class J
Available With Indication
Description: Dual-element, time-delay fuse; 10 seconds (minimum) at 500% rated
amps. Now available with optional indication on select ratings
Ratings:
Volts: 600Vac (or less); 300Vdc (or less)
Amps: 1-600A
IR: 300kA RMS Sym. 100kA dc
Agency Information: CE, UL Listed - Special Purpose*, Guide JFHR, File E56412,
CSA Certified (200k AIR) Class J per CSA-22.2 No. 248.8, Class 1422-02, File
53787.
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.
Features and Benefits
* Separate overload and short-circuit elements provide time delay for sizing of
high inrush loads linked with Class J current limitation.
* Selective coordination ratio of 2:1 (within Low-Peak fuse family) prevents
electrical shutdowns from extending beyond the failed circuit.
* Series combination ratings with branch circuit breakers allows broad range of
coverage, independent of breaker manufacturer.
Typical Applications
* Power Panelboards
* Branch Circuit Breaker Panelboard Mains
* Machinery Disconnects
* Industrial Control
Dimensions
Catalog Numbers (Amps)
Catalog numbers
Amp rating
Catalog numbers
Amp rating
LPJ-1SP
1A
LPJ-25SP**
25A
LPJ-1-1/4SP
1.25A
LPJ-30SP**
30A
LPJ-1-6/10SP
1.6A
LPJ-35SP**
35A
LPJ-1-8/10SP
1.8A
LPJ-40SP**
40A
LPJ-2SP
2A
LPJ-45SP**
45A
LPJ-2-1/4SP
2.25A
LPJ-50SP**
50A
LPJ-2-1/2SP
2.5A
LPJ-60SP**
60A
LPJ-2-8/10SP
2.8A
LPJ-70SP**
70A
LPJ-3SP
3A
LPJ-80SP**
80A
LPJ-3-2/10SP
3.2A
LPJ-90SP**
90A
LPJ-3-1/2SP
3.5A
LPJ-100SP**
100A
LPJ-4SP
4A
LPJ-110SP**
110A
LPJ-4-1/2SP
4.5A
LPJ-125SP**
125A
LPJ-5SP
5A
LPJ-150SP**
150A
LPJ-5-6/10SP
5.6A
LPJ-175SP**
175A
LPJ-6SP**
6A
LPJ-200SP**
200A
LPJ-7SP**
7A
LPJ-225SP**
225A
LPJ-8SP**
8A
LPJ-250SP**
250A
LPJ-9SP**
9A
LPJ-300SP**
300A
LPJ-10SP**
10A
LPJ-350SP**
350A
LPJ-12SP**
12A
LPJ-400SP**
400A
LPJ-15SP**
15A
LPJ-450SP**
450A
LPJ-17-1/2SP**
17.5A
LPJ-500SP**
500A
LPJ-20SP**
20A
LPJ-600SP**
600A
*Meets all performance requirements of UL Standard 248-8 for Class J fuses
**Available with optional permanent replace fuse indication. To order, place
“I” at end of catalog number. As below table.
Available with silver plated terminals. Add SP/ in front of Catalog Number.
Catalog Numbers (With optional permanent replace fuse indication)
LPJ-6SPI
LPJ-35SPI
LPJ-150SPI
LPJ-7SPI
LPJ-40SPI
LPJ-175SPI
LPJ-8SPI
LPJ-45SPI
LPJ-200SPI
LPJ-9SPI
LPJ-50SPI
LPJ-225SPI
LPJ-10SPI
LPJ-60SPI
LPJ-250SPI
LPJ-12SPI
LPJ-70SPI
LPJ-300SPI
LPJ-15SPI
LPJ-80SPI
LPJ-350SPI
LPJ-17-1/2SPI
LPJ-90SPI
LPJ-400SPI
LPJ-20SPI
LPJ-100SPI
LPJ-450SPI
LPJ-25SPI
LPJ-110SPI
LPJ-500SPI
LPJ-30SPI
LPJ-125SPI
LPJ-600SPI
Time-Current Characteristic Curves–Average Melt
Current Limitation Curves