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ManualsBrandsEdison ManualsClass RK5 Fuses3 Amp Dual Element Time-Delay Class RK5 Fuse (250V)

Table Of Contents

CROSS REFERENCE

VOLTS EDISON BUSSMANN

MERS-

EN GOULD

LITTELFUSE

250

ECNR FRN-R TR FLNR

600

ECSR FRS-R TRS FLSR

Dual Element Time-Delay

Class RK5 Fuses

ECNR40

ECNR70

ECNR150

ECSR5 ECSR200

ECSR100

These fuses are recommended for AC pow-

er distribution system mains, feeders and

branch circuits having inductive loads (mo-

tors, transformers) or non-inductive loads

(lighting, heating) where the available short-

circuit current does not exceed 200,000

RMS symmetrical amperes. These dual el-

ement, time-delay fuses have minimum in-

dustry standard time-delay of 10 seconds

at 5 times the fuse rating (8 sec. minimum

for 250V, 30A and less). The time-delay

characteristics of these fuses typically allows

them to be sized closer to the running am-

pacity 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 economi-

cal for most applications, especially motors

and transformers. They have moderate cur-

rent limitation.

ECNR/ECSR

Features

• True dual - element construction allows

sizing of 125% FLA for motor backup

protection

• Superior overload and cycling

capabilities

• Current limiting; provides component

short circuit protection

Applications

• Recommended for AC power

distribution system mains, feeders,

and branch circuits

• Protection of motors and motor branch

circuits

• Protection of transformers and other

inductive loads

• All general-purpose applications

including lighting, heating and other

non-inductive loads

ECNR/ECSR

Specifications

Voltage Rating:

ECNR: 250 VAC

ECSR: 600 VAC

Ampere Rating:

ECNR: 1–600 Amps

ECSR: 3–600 Amps

Interrupting Rating:

200,000 RMS Symmetrical Amps

Self-Certified DC Ratings:

• Voltage Rating:

ECNR (1–200): 125 VDC

ECNR (201–600): 250 VDC

ECSR (3–600): 300 VDC

• Self-Certified Interrupting Rating:

ECNR/ECSR 20,000 Amperes DC

Current Limiting: RK5 Fuse

Agency Approvals

• UL Listed, Class RK5, Guide JDDZ,

File E162363

• CSA Certified HRCI-R per C22.2, No.

248.12

1-800-633-0405

Circuit Protection

tCPR-149

For latest prices, please check AutomationDirect.com

Summary of content (11 pages)

PAGE 1
For latest prices, please check AutomationDirect.com Dual Element Time-Delay Class RK5 Fuses ECNR40 ECNR70 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 shortcircuit current does not exceed 200,000 RMS symmetrical amperes.
PAGE 2
For latest prices, please check AutomationDirect.com Dual Element Time-Delay Class RK5 Fuses ECNR Series 250V Dual-element Time-delay Fuses Part Number Rated AMP Voltage Pcs/Pkg Package Price Rating Weight AC Max Part Number ECNR1 ECNR2 ECNR3 ECNR5 ECNR8 ECNR10 ECNR15 ECNR20 ECNR25 ECNR30 ECNR35 ECNR40 ECNR45 ECNR50 ECNR60 ECNR70 ECNR80 ECNR90 ECNR100 ECNR125 ECNR150 ECNR175 ECNR200 ECNR225 ECNR250 ECNR300 ECNR350 ECNR400 ECNR450 ECNR500 ECNR600 1 $63.00 2 0.30 lb $60.00 3 $58.00 5 $56.
PAGE 3
For latest prices, please check AutomationDirect.com Dual Element Time-Delay Class RK5 Fuses 600A 400A 200A 100A 60A 30A 100 10 AMPERE RATING 10 TIME IN SECONDS TIME IN SECONDS 10A AMPERE RATING 15A 100 AVERAGE TIME/CURRENT CURVES Cat No. ECNR (AMP) 250 VAC . 2A . 3A . 4A . 5A . 6A . 8A 1A 1. 125A 1. 6A 2A 2. 5A 3. 2A 4A 5A 6. 125A . 1A ECNR Curves 1 1 .
PAGE 4
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PAGE 5
For latest prices, please check AutomationDirect.com Selection Guide Line Overview The fuse selection guide below is a general summary of the specifications included for each fuse type. This selection guide does not include the many variables that can exist for specific situations such as local codes, unusual temperature, or other operating conditions. When selecting fuses, be sure to comply with any applicable PUBLIC SAFETY standards that apply to Overcurrent Protection Devices (OPD).
PAGE 6
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PAGE 7
For latest prices, please check AutomationDirect.com Modular Ferrule Fuse Blocks for Class R Fuses Dimensions in [mm] RM25030 RM25060 Please see our website www.AutomationDirect.com for complete engineering drawings. Dimensions are approximate. Not for construction purposes.
PAGE 8
For latest prices, please check AutomationDirect.com Modular Ferrule Fuse Blocks for Class R Fuses Dimensions Dimensions in [mm] RM60030 Pressure plate RM60060 Please see our website www.AutomationDirect.com for complete engineering drawings. Dimensions are approximate. Not for construction purposes.
PAGE 9
For latest prices, please check AutomationDirect.com Fuse Blocks for Class RK Fuses Description Agency Approvals For use with Edison LESRK and ECSR, R600, Class R fuses Terminal type : • SR = Screw type, clip with re-inforced spring. • CR = Box lug type, clip with reinforced spring R60030-2SR • UL Listed, UL 512, Guide IZLT, File E14853 • CSA, Certified, C22.2 No.
PAGE 10
For latest prices, please check AutomationDirect.com Accessories Accessories Part Number Description FP-2 Fuse puller for fuse dia. 13/32” - 13/16”. Fuse type: 0-60A, 250V; 0-30A, 600V Multi-pole connection kit to connect new design multiple Class CC and Midget Class fuse holders together. Kit consists of 6 connectors and 3 handle pins to connect up to 4 fuse holders. JV-L* (Not Field Installable) Pcs/Pkg Price 1 $18.00 $7.
PAGE 11
For latest prices, please check AutomationDirect.com Cross Reference Guide CROSS REFERENCE GUIDE By manufacturers type reference or series number. Ampere ratings must be added for ordering purposes.