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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

AUD88.00 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
ECNR150
AUD88.00
Availability: 3 weeks
 
150 Amp Rating
ECNR200
AUD88.00
Availability: 3 weeks
 
200 Amp Rating
ECSR125
AUD150.00
Availability: 3 weeks
 
125 Amp Rating
ECSR150
AUD150.00
Availability: 3 weeks
 
150 Amp Rating
ECSR200
AUD150.00
Availability: 3 weeks
 
200 Amp Rating
LESRK200
AUD222.00
Availability: 3 weeks
 
200 Amp Rating
ECNR70
AUD38.50
Availability: 5 weeks
 
70 Amp Rating
ECNR80
AUD38.50
Availability: 5 weeks
 
80 Amp Rating
ECNR90
AUD38.50
Availability: 5 weeks
 
90 Amp Rating
ECNR100
AUD38.50
Availability: 5 weeks
 
100 Amp Rating
ECSR70
AUD74.00
Availability: 5 weeks
 
70 Amp Rating
ECSR80
AUD74.00
Availability: 5 weeks
 
80 Amp Rating
ECSR90
AUD74.00
Availability: 5 weeks
 
90 Amp Rating
ECSR100
AUD74.00
Availability: 5 weeks
 
100 Amp Rating
LESRK100
AUD109.00
Availability: 5 weeks
 
100 Amp Rating
ECNR1
AUD13.25
Availability: 1 week
 
1 Amp Rating
ECNR2
AUD12.75
Availability: 5 weeks
 
2 Amp Rating
ECNR3
AUD14.00
Availability: 5 weeks
 
3 Amp Rating
ECNR5
AUD14.00
Availability: 5 weeks
 
5 Amp Rating
ECNR8
AUD14.00
Availability: 5 weeks
 
8Amp Rating
ECNR10
AUD11.75
Availability: 5 weeks
 
10 Amp Rating
ECNR15
AUD9.30
Availability: 1 week
 
15 Amp Rating
ECNR20
AUD9.30
Availability: 5 weeks
 
20 Amp Rating
ECNR25
AUD9.30
Availability: 5 weeks
 
25 Amp Rating
ECNR30
AUD9.30
Availability: 5 weeks
 
30 Amp Rating
ECNR35
AUD17.25
Availability: 5 weeks
 
35 Amp Rating
ECNR40
AUD17.25
Availability: 5 weeks
 
40 Amp Rating
ECNR45
AUD17.25
Availability: 5 weeks
 
45 Amp Rating
ECNR50
AUD17.25
Availability: 5 weeks
 
50 Amp Rating
ECNR60
AUD17.25
Availability: 5 weeks
 
60 Amp Rating
ECSR3
AUD23.50
Availability: 5 weeks
 
3 Amp Rating
ECSR4
AUD23.50
Availability: 5 weeks
 
4 Amp Rating
ECSR5
AUD23.50
Availability: 5 weeks
 
5 Amp Rating
ECSR6
AUD23.50
Availability: 5 weeks
 
6 Amp Rating
ECSR6.25
AUD25.50
Availability: 5 weeks
 
6.25 Amp Rating
ECSR7
AUD25.50
Availability: 5 weeks
 
7 Amp Rating
ECSR8
AUD23.50
Availability: 5 weeks
 
8 Amp Rating
ECSR10
AUD23.50
Availability: 5 weeks
 
10 Amp Rating
ECSR12
AUD23.50
Availability: 5 weeks
 
12 Amp Rating
ECSR15
AUD21.00
Availability: 5 weeks
 
15 Amp Rating
ECSR17.5
AUD21.00
Availability: 5 weeks
 
17.5 Amp Rating
ECSR20
AUD21.00
Availability: 5 weeks
 
20 Amp Rating
ECSR25
AUD21.00
Availability: 5 weeks
 
25 Amp Rating
ECSR30
AUD21.00
Availability: 1 week
 
30 Amp Rating
ECSR35
AUD36.00
Availability: 5 weeks
 
35 Amp Rating
ECSR40
AUD36.00
Availability: 5 weeks
 
40 Amp Rating
ECSR45
AUD36.00
Availability: 5 weeks
 
45 Amp Rating
ECSR50
AUD36.00
Availability: 5 weeks
 
50 Amp Rating
ECSR60
AUD36.00
Availability: 5 weeks
 
60 Amp Rating
LENRK10
AUD17.25
Availability: 5 weeks
 
10 Amp Rating
LENRK15
AUD14.00
Availability: 5 weeks
 
15 Amp Rating
LENRK20
AUD14.00
Availability: 5 weeks
 
20 Amp Rating
LENRK30
AUD14.00
Availability: 5 weeks
 
30 Amp Rating
LENRK60
AUD25.50
Availability: 5 weeks
 
60 Amp Rating
LESRK5
AUD34.50
Availability: 5 weeks
 
5 Amp Rating
LESRK10
AUD34.50
Availability: 5 weeks
 
10 Amp Rating
LESRK15
AUD30.50
Availability: 5 weeks
 
15 Amp Rating
LESRK20
AUD30.50
Availability: 5 weeks
 
20 Amp Rating
LESRK30
AUD30.50
Availability: 5 weeks
 
30 Amp Rating
LESRK40
AUD53.00
Availability: 5 weeks
 
40 Amp Rating
LESRK50
AUD53.00
Availability: 5 weeks
 
50 Amp Rating
LESRK60
AUD53.00
Availability: 5 weeks
 
60 Amp Rating
All amounts shown in AUD
Note: Comes with instruction sheet.
Ordering Example: (1) ECNR1 1 amp fuse, AUD13.25  plus (1) LENRK10 10 amp fuse, AUD17.25, AUD13.25 + 17.25 = AUD30.50
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