Electronic Supply by Industrial Electronics in Milwaukee Wisconsin : Potter Brumfield, Radio Shack Stores in Milwaukee: KRP-C_SP Class L Low-Peak® Time-delay Fuses

KRP-C_SP Class L Low-Peak® Time-delay Fuses
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synscon on 03/06/2015 10:30:00


Description: Time-delay fuse - 4 seconds (minimum) at 500% rated amps.
Ratings:
Volts: 600Vac (or less); 300Vdc (601-2000A)
Amps: 601-6000A (use KRP-CL for current ratings under 601A)
IR: 300kA RMS Sym. 100kA DC
Agency Information: CE, UL Listed- Special Purpose (meets all performance
requirements of UL Standard 248-10 for Class L fuses),Guide JFHR, File E56412,
CSA Certified (200k AIR), Class 1422-02, File 53787, Class L per CSA C22.2, No.
248.10.
Features and Benefits
* Time delay of four seconds at five times rating allows closer sizing on large
motor loads combined with Class L current limitation.
* Selective coordination ratio of 2:1 (within Low-Peak fuse family) prevents
electrical shutdowns from extending beyond the failed circuit.
* Interrupting rating of 300kA RMS symmetrical provides adequate ratings without
obsolescence for all electrical systems, big or small.
* Quality construction, using high-grade materials, provides lower watts loss
and operating temperatures with superior arc quenching during current-limiting
action.
General Information:
* All purpose silver-linked fuse for both overload and short-circuit protection
for high capacity systems (mains and large feeders).
* Time-delay (minimum of four seconds at five times amp rating) for close
sizing.
* Current-limiting action of the fuse generally affords considerable reduction
in bus bracing.
* Interrupting rating of 300,000 amperes complies with NEC Sections 110-9 and
230-65 for today’s large capacity systems.
* O-ring seals maximize pressure build-up during current-limiting action and
ensure filler retention.
* High grade silica-sand filler; accelerates response of fuse to short-circuits
by having quenching effect upon the fuse arc.
* 99.9% pure silver fuselinks. The high conductivity of silver gives low watt
loss and low operating temperature at normal current levels; maximizes total
clearing I2t fault energy let-through.
* Selective coordination (blackout prevention)
* Glass melamine tube.
* Silver-plated end bells.
Typical Applications
* Large Distribution Switchboards
* Power Panelboards
* Large Machinery Disconnects
Ampere Ratings†
Catalog Number
Ctn. Qty.
Weight** Lbs.
Lbs.
Kg.
KRP-C-601SP
1
3.75
1.7
KRP-C-650SP
KRP-C-700SP
KRP-C-750SP
KRP-C-800SP
KRP-C-801SP
1
4.5
2.041
KRP-C-900SP
KRP-C-1000SP
KRP-C-1100SP
KRP-C-1200SP
KRP-C-1350SP
1
6.5
2.948
KRP-C-1400SP
KRP-C-1500SP
KRP-C-1600SP
KRP-C-1800SP
1
8.5
3.85
KRP-C-1900SP
KRP-C-2000SP
KRP-C-2001SP
1
17.25
7.824
KRP-C-2400SP
KRP-C-2500SP
KRP-C-3000SP
1
18.25
8.278
KRP-C-3500SP
1
23.5
10.659
KRP-C-3800SP
KRP-C-4000SP
KRP-C-4500SP
1
29
13.154
KRP-C-5000SP
KRP-C-6000SP
1
36
16.329
†Special purpose rating of 300,000 AIR.
**Weight per carton.
Dimensional Data
601-2000A  2001-6000A
Time-Current Characteristic Curves-Average Melt
Current-Limitation Curves
Fuseblocks: (601 - 1200 Amps)
Catalog Number
Poles
51215
1
51235
3
No reducers available.