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Dual Element Time-Delay Fuses Class Rk5 and Rk1

ECNR/ECSR/LENRK/LESRK Fuses

Dual Element Time-Delay Fuses Class Rk5 and Rk1, 600 VAC, 250 VAC | ECNR/ECSR/LENRK/LESRK Fuses

SGD86.00 ECNR150

  • True Dual - Element Spring - Trigger Construction Allows Sizing of 125% FLA for Motor Backup Protection
  • Superior Overload and Cycling Capabilities
  • Extremely Current Limiting; Provides Superior Short Circuit Component Protection
Power Products - View related products

Description

RK5 Dual Element Time-Delay Fuses
These fuses are recommended for AC power distribution system mains, feeders and branch circuits having inductive loads (motors, transformers) or non-inductive loads (lighting, heating) where the available short-circuit current does not exceed 200,000 RMS symmetrical amperes. These "dual element, time-delay" fuses have minimum industry standard time-delay of 10 seconds at 5 times the fuse rating (8 sec. minimum for 250V, 30A and less). The timedelay characteristics of these fuses typically allows them to be sized closer to the running ampacity of inductive loads to reduce cost and provide improved overcurrent protection. These fuses will override normal equipment current surges to reduce unnecessary fuse openings. They are the most popular fuses used in the industry and the most economical for most applications, especially motors and transformers. They have moderate current limitation.

CLASS R FUSES WILL FIT CLASS H, K AND R FUSE CLIPS. CLASS R FUSE CLIPS WILL ONLY ACCEPT CLASS R FUSES. FUSES RATED 600 VOLTS AC OR LESS MAY BE APPLIED AT ANY LOWER VOLTAGE.

RK1 Dual Element Time-Delay Fuses The application recommended for these fuses is exactly the same as for the Edison ECNR/ECSR fuses except for the advantages of greater current limitation. The Edison LENRK/LESRK fuses have up to 40% more current limitation and up to 350% more Amps-Squared-Second (I2t) limitation under fault conditions than Edison ECNR/ECSR fuses to reduce potential for damage. In addition, LENRK/LESRK fuses allow better selectivity for electrical power system designers and better short circuit protection for breakers having inadequate interrupting ratings. ECNR/ECSR and LENRK/LESRK fuse lines are physically interchangeable (and electrically interchangeable per U.L. equipment listing conditions) and are recommended as a practical, economical way to upgrade systems for many situations.

SPECIFICATIONS
Voltage Rating:
    ECNR and LENRK: 250 Vac
    ECSR and LESRK: 600 Vac
Ampere Rating:
    ECNR and ECSR: 0.1 to 600 A
    LENRK and LESRK: 0.2 to 600 A
Interrupting Rating: 200,000 RMS symmetrical amps
LENRK and LESRK Self-Certified Interrupting Rating: 300,000 RMS symmetrical amps
Current Limiting:
ECNR and ECSR: RK5 fuse
LENRK and LESRK: RK1 fuse
Agency Approvals: UL Listed, Class RK5 and RK1, Guide JDDZ, File E162363; CSA Certified HRCI-R per C22.2, No. 248.12
Self-Certified DC Ratings:
    Voltage Rating: ECNR (0.1 to 600) 125 Vdc; ECSR (0.1 to 600) 300 Vdc; LENRK (0.2 to 600) 125 Vdc; LESRK (0.25 to 30) 200 Vdc; (35 to 600) 300 Vdc
Interrupting Rating:
    ECNR and ECSR: 20,000 amperes DC
    LENRK and LESRK: 20,000 amperes DC
Place Order(Specify Model Number)
Part Number/Desc.
Qty
Description
Quick Ship
ECNR150
SGD86.00
Availability: 3 weeks
 
150 Amp Rating
Quick Ship
ECNR200
SGD86.00
Availability: 3 weeks
 
200 Amp Rating
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ECSR125
SGD146.00
Availability: 3 weeks
 
125 Amp Rating
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ECSR150
SGD146.00
Availability: 3 weeks
 
150 Amp Rating
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ECSR200
SGD146.00
Availability: 3 weeks
 
200 Amp Rating
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LESRK200
SGD217.00
Availability: 3 weeks
 
200 Amp Rating
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ECNR70
SGD38.00
Availability: 5 weeks
 
70 Amp Rating
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ECNR80
SGD38.00
Availability: 5 weeks
 
80 Amp Rating
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ECNR90
SGD38.00
Availability: 5 weeks
 
90 Amp Rating
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ECNR100
SGD38.00
Availability: 5 weeks
 
100 Amp Rating
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ECSR70
SGD72.00
Availability: 5 weeks
 
70 Amp Rating
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ECSR80
SGD72.00
Availability: 5 weeks
 
80 Amp Rating
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ECSR90
SGD72.00
Availability: 5 weeks
 
90 Amp Rating
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ECSR100
SGD72.00
Availability: 5 weeks
 
100 Amp Rating
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LESRK100
SGD107.00
Availability: 5 weeks
 
100 Amp Rating
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ECNR1
SGD13.00
Availability: 5 weeks
 
1 Amp Rating
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ECNR2
SGD12.25
Availability: 5 weeks
 
2 Amp Rating
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ECNR3
SGD13.50
Availability: 5 weeks
 
3 Amp Rating
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ECNR5
SGD13.50
Availability: 5 weeks
 
5 Amp Rating
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ECNR8
SGD13.50
Availability: 5 weeks
 
8Amp Rating
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ECNR10
SGD11.50
Availability: 1 week
 
10 Amp Rating
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ECNR15
SGD9.10
Availability: 5 weeks
 
15 Amp Rating
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ECNR20
SGD9.10
Availability: 1 week
 
20 Amp Rating
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ECNR25
SGD9.10
Availability: 5 weeks
 
25 Amp Rating
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ECNR30
SGD9.10
Availability: 5 weeks
 
30 Amp Rating
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ECNR35
SGD16.75
Availability: 5 weeks
 
35 Amp Rating
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ECNR40
SGD16.75
Availability: 5 weeks
 
40 Amp Rating
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ECNR45
SGD16.75
Availability: 5 weeks
 
45 Amp Rating
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ECNR50
SGD16.75
Availability: 5 weeks
 
50 Amp Rating
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ECNR60
SGD16.75
Availability: 5 weeks
 
60 Amp Rating
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ECSR3
SGD23.00
Availability: 5 weeks
 
3 Amp Rating
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ECSR4
SGD23.00
Availability: 5 weeks
 
4 Amp Rating
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ECSR5
SGD23.00
Availability: 5 weeks
 
5 Amp Rating
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ECSR6
SGD23.00
Availability: 5 weeks
 
6 Amp Rating
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ECSR6.25
SGD24.75
Availability: 5 weeks
 
6.25 Amp Rating
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ECSR7
SGD24.75
Availability: 5 weeks
 
7 Amp Rating
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ECSR8
SGD23.00
Availability: 5 weeks
 
8 Amp Rating
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ECSR10
SGD23.00
Availability: 5 weeks
 
10 Amp Rating
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ECSR12
SGD23.00
Availability: 5 weeks
 
12 Amp Rating
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ECSR15
SGD20.50
Availability: 5 weeks
 
15 Amp Rating
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ECSR17.5
SGD20.50
Availability: 5 weeks
 
17.5 Amp Rating
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ECSR20
SGD20.50
Availability: 5 weeks
 
20 Amp Rating
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ECSR25
SGD20.50
Availability: 5 weeks
 
25 Amp Rating
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ECSR30
SGD20.50
Availability: 1 week
 
30 Amp Rating
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ECSR35
SGD35.50
Availability: 5 weeks
 
35 Amp Rating
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ECSR40
SGD35.50
Availability: 5 weeks
 
40 Amp Rating
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ECSR45
SGD35.50
Availability: 5 weeks
 
45 Amp Rating
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ECSR50
SGD35.50
Availability: 5 weeks
 
50 Amp Rating
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ECSR60
SGD35.50
Availability: 5 weeks
 
60 Amp Rating
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LENRK10
SGD16.75
Availability: 5 weeks
 
10 Amp Rating
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LENRK15
SGD13.50
Availability: 5 weeks
 
15 Amp Rating
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LENRK20
SGD13.50
Availability: 5 weeks
 
20 Amp Rating
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LENRK30
SGD13.50
Availability: 5 weeks
 
30 Amp Rating
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LENRK60
SGD25.00
Availability: 5 weeks
 
60 Amp Rating
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LESRK5
SGD33.50
Availability: 5 weeks
 
5 Amp Rating
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LESRK10
SGD33.50
Availability: 5 weeks
 
10 Amp Rating
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LESRK15
SGD30.00
Availability: 5 weeks
 
15 Amp Rating
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LESRK20
SGD30.00
Availability: 5 weeks
 
20 Amp Rating
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LESRK30
SGD30.00
Availability: 5 weeks
 
30 Amp Rating
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LESRK40
SGD52.00
Availability: 5 weeks
 
40 Amp Rating
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LESRK50
SGD52.00
Availability: 5 weeks
 
50 Amp Rating
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LESRK60
SGD52.00
Availability: 5 weeks
 
60 Amp Rating
All prices on this site are shown in Singapore Dollars.
Note: Comes with instruction sheet.
Ordering Example: (1) ECNR1 1 amp fuse, SGD13.00  plus (1) LENRK10 10 amp fuse, SGD16.75, SGD13.00 + 16.75 = SGD29.75