available short-circuit currents are relatively low
NON one-time fuses do not have any
appreciable degree of timedelay and thus
should not be specified in circuits where
large transients or motor overloads occur.
Use Bussmann series advanced protection
FUSETRON™ FRN-R or ultimate protection
Low-Peak™ LPN-RK dual-element, time-delay
fuses.
For general purpose circuits, size at amp rating
of circuit
For motor circuits, size at 300% to 400%
according to the NEC
®
motor ampacity tables
430.247 to 430.250, per 430.6(A)(1)
•
Agency information
•
UL Listed, Class K5 (1/8-60 A), Std. 248-9, Class
H (65-600 A), Std. 248-6 (125 Vdc 1/8-100 A), UL
Guide JDDZ, File E4273
CSA Certified, Class 1421-01, File 53787 (1/8-12
A, 65-600 A)†
CE
•
•
•
† For CSA Certified 15-60 A, see PON data sheet no. 4126.
•
Technical Data 1030
Effective June 2017
250 V NON/600 V NOS Class K5 and H fuses
Recommended fuse blocks
•
NON time-current curves — average melt
60A
100A
200A
400A
600A
15A
20A
30A
35A
1-, 2- and 3-pole modular fuse blocks up to 600 amps — see data
sheet no. 10487
1-, 2- and 3-pole modular power distribution fuse blocks up to 60
amps — see data sheet no. 10490
•
300
AMP RATING
Fuse reducers for Class R fuses
Desired fuse (case)
Equipment fuse clips size
60 A
30 A
30 A
100 A
60 A
60 A
200 A
100 A
100 A
400 A
200 A
100 A
600 A
200 A
400 A
† Not CSA certified.
Catalog no. (pairs)
250V
NO.263
NO.213
NO.216
NO.226
NO.2621
NO.2641
†
NO.2642
NO.2661
†
NO.2662
†
NO.2664
†
100
10
For additional information on Class K5 & H fuse reducers, see data
sheet no. 1118.
TIME IN SECONDS
1
0.1
1000
100
CURRENT IN AMPS
2
Eaton.com/bussmannseries
10,000
20
0.01
250 V NON/600 V NOS Class K5 and H fuses
Technical Data 1030
Effective June 2017
Dimensions – in
All Diameters ± 0.008
5" (± 0.031)
0.81" (± 0.008)
1 to 30A
450 to 600A
5.5" (± 0.031)
1.06" (± 0.008)
35 to 60A
225 to 400A
7.9" (± 0.062)
1.34"
70 to 100A
110 to 200A
9.63" (± 0.062)
1.84"
11.63" (± 0.094)
3.13"
13.38" ( 0.094)
2.59"
Features
•
Protect lighting, heating and other circuits not subject to
temporary surges and where available short-circuit currents are
relatively low
NOS one-time fuses do not have any appreciable degree of
timedelay and thus should not be specified in circuits where
large transients or motor overloads occur. Use Bussmann series
advanced protection FUSETRON FRS-R or ultimate protection
Low-Peak LPS-RK dual-element, time-delay fuses.
For general purpose circuits, size at amp rating of circuit
For motor circuits, size at 300% to 400% according to the NEC
®
motor ampacity tables 430.247 to 430.250, per 430.6(A)(1)
1-, 2- and 3-pole modular fuse blocks up to 600 amps — see data
sheet no. 10487
1-, 2- and 3-pole modular power distribution fuse blocks up to 60
amps — see data sheet no. 10490
•
Description
Basic protection 600 V NOS Class K5 and H general purpose, non-
current-limiting, one-time fuses.
Catalog symbol
•
•
•
NOS-(amp)
Volts 600 Vac
Amps 1-600 A
IR
•
•
Ratings
•
•
•
Recommended fuse blocks
•
•
50 kA Vac RMS Sym. (1-60 A)
10 kA Vac RMS Sym. (70-600 A)
Fuse reducers for Class R fuses
Equipment fuse
clips
60 A
100 A
200 A
Desired fuse
(case) size
30 A
30 A
60 A
60 A
100 A
100 A
200 A
100 A
200 A
400 A
Catalog no. (pairs) 600V
NO.663
NO.216
NO.616
NO.626
NO.2621
NO.2641
†
NO.2642
NO.2661
†
NO.2662
†
NO.2664
†
Agency information
•
UL Listed, Class K5 (1-60 A), Std. 248-9, Class H (70-600 A),
Std. 248-6, UL Guide JDDZ, File E4273
CSA Certified, Class 1421-01, File 53787
CE
NOS-40
NOS-45
NOS-50
NOS-60
NOS-70
NOS-75
NOS-80
NOS-90
NOS-100
NOS-110
NOS-125
NOS-150
NOS-175
NOS-200
NOS-225
NOS-250
NOS-300
NOS-350
NOS-400
NOS-450
NOS-500
NOS-600
•
•
Catalog Numbers (amps)
NOS-1
NOS-9
NOS-2
NOS-10
NOS-3
NOS-12
NOS-4
NOS-15
NOS-5
NOS-20
NOS-6
NOS-25
NOS-7
NOS-30
NOS-8
NOS-35
400 A
600 A
† Not CSA certified.
For additional information on Class R fuse reducers, see data sheet
no 1118.
Carton Quantity
Amps
1–60
70–100
110–600
Qty.
10
5
1
Eaton.com/bussmannseries
3
Technical Data 1030
Effective June 2017
250 V NON/600 V NOS Class K5 and H fuses
NOS time-current curves — average melt
100A
200A
400A
600A
15A
20A
30A
35A
60A
AMP RATING
300
100
10
TIME IN SECONDS
1
0.1
0.08
0.06
0.04
0.03
0.02
0.01
1000
20
100
CURRENT IN AMPS
The only controlled copy of this data sheet is the electronic read-only version located on the Eaton network drive. All other copies of this document are
by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the
end user with design applications. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit
distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once
a product has been selected, it should be tested by the user in all possible applications.
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