NH (H.R.C) FUSES
AND FUSE BASES
NH (H.R.C) Fuses
NHC00-FB
(6A...100A)
NH00-FB
(6A...160A)
NH0-FB
(25A...160A)
5
NH1-FB
(50A...250A)
NH2-FB
(80A...400A)
NH3-FB
(250A...630A)
NH (H.R.C) Fuse Bases
BMC
STEATIT
NH00-FA
NH0-FA
NH1-FA
NH2-FA
NH3-FA
CONTENTS
General Information About NH (H.R.C) Fuses
2
Super Flink NH Fuses Bases
3
Technical Characteristic Dimension and Order Codes of NH (HRC) Fuses
4
Technical Characteristic Dimension and Order Codes of NH (HRC) Fuse Bases
5
Maksimum Power Loses Table
6
-2006
5/1
GENERAL INFORMATION ABOUT NH (H.R.C) FUSES
General :
Quartz Sand :
Fuses are protective device in which the melting or more fusible
elements open a circuit and interrupt the current if the current
exceeds a set value for a given length of time.
Federal NH (H.R.C.) fuses and fuse bases are produced in
according to VDE 636, IEC 60269/EN 60269, DIN 43620
standards and CE certificate.
According to the above mentioned standards the H.R.C. fuses
should have a higher breaking capacity than 50 kA. Federal
NH (H.R.C.) fuses have a breaking capacity of 120 kA. Federal
has a wide range of H.R.C. products. Rated voltages are 500
V. AC and 440 V DC. Rated current is up to 630 A. Our products
protect your panels, cables and installation reliability Figure3 gives the time-current character›st›c of the fuses. The curves
show that fuse’s response time(+) which is connected with
load current. It is clear from the figure that at higher current
rates the response time is shorter.
Federal NH fuses have characteristic of delayed and it is strong
to Asynchrone motor’s openning current. It makes protection
against short circuit, boasting current and opens circuit
immediately. “gL/Gg” mark’s mean is line protection and this
class of fuses are used for protection of cabel and conductors.
From the time-current curve it is clear that fuses can operate
to 1.6 time higher of its rated value and breaking capacity of
circuit for a 5xIn value in 5 seconds. The melting wires (fusible
element) of the fuses cartridges are produced in different
shape and sizes for various current rated. Over the melting
wire small chambers are put together. In case of short-circuit
and over load different section with the same diameter melt
down and form partical sparks. As a result of the short-circuit
current is extinguished and the heat is evenly transferred along
the fuse.
The external body of the fuses should be resistant to the high
current temperature and pressure caused arcs during the
melting of the fuse wire. Therefore for this wire to melt, the
current energy should be higher than the wires maximum
resistance. During the process of the wire melting along and
inside the length of the fuse body, the current continues to flow
firstly as liquefied metal and secondly as steamed metal before
eventually losing it’s energy. This is visible in the form of an arc
(Fig-1) and therefore there is an immense increase of heat and
pressure during this action on the inside of the fuse body. The
fuse body must hold resistance to such actions otherwise will
be damaged and lose its purpose. To avoid such circumstance
the material used for the fuse body should be made accordingly
to the IEC 672 standards.
Federal fuses cartridge are produced to withstand shock
temperatures and dynamic stresses.
Federal fuses cartidge contacts are made from special brass
and silver plated. In time the silver plate becomes dark colored.
However,this is not important,because silver sulphur with current
heat becomes conductive.
Inside of the body is Quartz Sand. This distinctiveness of
the sand is that it is high pure, clean and unhumid. Also
the sand is tightly contained in the fuse using a vibration
method to lock out any air and maintain the sufficiency of
sand. During melting of the wire, the sand helps cool down
the arc and insulates the distance between the broken fuse
wire points for quicker and more efficient energy decrease.
lo: passing current,
lk(t): short circuit current that will pass,
if a metallic bridge be inside of fuse.
lp: peak value of the short circuit current
ts: fusion time
t1: extinguishing time
Ip
NH(HRC) Fuses Bases :
Fuse bases are produced in five size and steatit or BMC
cartridge according to request of customers. The bases
contacts are produced 00 and 0 size with clemence or
screw, other sizes have only screw connection
The bases contacts are made of electrolytic copper and
reinforced with steel segments in addition to ›ts own
compression and elasticity characteristic. Grabbing capacity
of conducts is higher than other bases. If bases are put
together side by side. Pertinaks seperaters which is given
as accessory is used for rising of phase isolation.
When fuses are placed in their bases, the fuses blade must
sit on base exactly. Otherwise incapable contact will cause
loss of resistance, temperature and power, failures.
Conductors must be mounted for bases and cross-sections
which is suitable to standars.
Order
Codes
Size
8CB-A0000-0000
8CB-A0000-0000
8CB-A0000-0000
1
2
3
Phase seperator dimensions(mm)
a
b
227
116
227
116
227
116
Selective Protection (Selectivity)
Selectivity means that any fault occurs in a system is eliminated
by the close protection equipment so that the rest of the system
continuous ›ts normal operation.
Accordig to “gL/gG” operation class, NH fuses bases which have
%60 nominal circuit selectivly in high short circuit current. For
selectivity,fuses must be choosen according to table (Fig-2)
SELECTIVE PROTECTION (SELECTIVITY)
2nd FUSE
NOMINAL CURRENT OF 2th FUSE
6
10
16
20
25
32
35
40
50
63
80
100
125
160
200
250
315
400
500
NOMINAL CURRENT 1th FUSE
6
10
16
20
25
32
35
40
50
63
80
100
125
160
200
250
315
400
500
630
1th FUSE
Ik(t)
three phase, selective at 380 V.
three phase, selective at 500 V.
Selective Table
Fig-2
Voltage
Io
Current
ts
tl
Fig - 1 Diagram of current and voltage changing when the damage current
is broken by the fuse.
5/2
-2006
315
400
500
630
200
250
100
125
160
10
16
20
25
32
40
50
63
80
1000
5000
3000
500
300
1000
100
500
300
50
30
10
5
3
1
2√2 Ip
100
630 A
400 A
250 A
160 A
100 A
50
30
5
3
0,5
0,3
Fig-3
Loading current (effective value)
Ampere
Time - current characteristics of NH (H.R.C) fuses “gL/gG”
700
500
300
70
100
50
30
7
10
3
Expected current
1000
7000
10000
5000
3000
1000
700
500
300
70
100
50
30
5
1
10
0,1
5
10
1
Opening time
10000
kA peak
5000
3000
Max. value of current
Second
10000
6
GENERAL INFORMATION ABOUT NH (H.R.C) FUSES
kA eff
Fig-4
Breaking current diagram
180
200
250
315
400
100
125
300
Second
10000
4000
2000
1000
400
200
100
40
Opening time
The super flink fuses are used to protected the power electronic
element, such as diode, thrystor in AC and DC against
overcurrent and short-circuit. Pure silver materials are used as
a melting lace wire. This is the most important difference
between NH (H.R.C) (fusable cut out) fuses, and LV NH
(H.R.C.) fuse flinks.
Increasing of temperature of super flink fuses is very high in
comparison with line protection device (in operating class gL,
Gg) as shown in time-current characteristics curve. (Fig-5) So
that precise protection is supplied at the value of rated current.
This means that these super flink fuses take into account all
aspects of electrical safety.
25
32
40
50
63
80
NH Super flink fuses :
200
NH SUPER FLINK FUSES
Operating characteristic: Super flink (Rapid)
Rated voltage
: AC 500 V.
Operating class
: gR
Breaking capacity
: 100 kA (effective)
Dimensions of super flink fuses are same as NH fuses.
20
10
4
2
1
0.4
0.2
0.1
0.04
0.02
4000
5000
3000
2000
1000
400
500
100
40
50
30
4
NH super flink fuses are manufactured in the following size
and with the following rated currents.
00, 1, 2 at 3 size and from 25 A. to 400 A.
20
0.01
Rated current :
Fig-5
Load current
Ampere
Time - current characteristics of super flink NH (H.R.C) fuses "gR"
Order codes :
Type
Size
NHG00-FB
NHG00-FB
NHG00-FB
NHG00-FB
NHG00-FB
NHG00-FB
NHG00-FB
NHG00-FB
NHG1-FB
NHG1-FB
00
00
00
00
00
00
00
00
1
1
-2006
Rated current Order Code
25 A
32 A
40 A
50 A
63 A
80 A
100 A
125 A
100 A
125 A
9CB-BH000-0025
9CB-BH000-0032
9CB-BH000-0040
9CB-BH000-0050
9CB-BH000-0063
9CB-BH000-0080
9CB-BH000-0100
9CB-BH000-0125
9CD-BH000-0100
9CD-BH000-0125
Type
Size
Rated current Order Code
NHG1-FB
NHG1-FB
NHG1-FB
NHG2-FB
NHG2-FB
NHG2-FB
NHG2-FB
NHG2-FB
NHG2-FB
NHG3-FB
1
1
1
2
2
2
2
2
2
3
160 A
200 A
250 A
200 A
250 A
280 A
315 A
355 A
400 A
630 A
9CD-BH000-0160
9CD-BH000-0200
9CD-BH000-0250
9CE-BH000-0200
9CE-BH000-0250
9CE-BH000-0280
9CE-BH000-0315
9CE-BH000-0355
9CE-BH000-0400
9CE-BH000-0630
5/3
TECHNICAL CHARACTERISTICS, DIMENSIONS and ORDER CODES of NH (H.R.C) FUSES
Order
code
Size Rated Quantity/
current box
(A)
Kg./
box
DIMENSIONS (mm)
a1
a2
a3
a4
b
e1
e2
C00
C00
C00
C00
C00
C00
C00
C00
C00
C00
C00
6
10
16
20
25
32
40
50
63
80
100
10
10
10
10
10
10
10
10
10
10
10
1.305
1.305
1.305
1.305
1.305
1.305
1.305
1.305
1.305
1.305
1.305
78.5
54
45
49
15
36
21
e3
45
NHC00-FB
9CA-BG000-0006
9CA-BG000-0010
9CA-BG000-0016
9CA-BG000-0020
9CA-BG000-0025
9CA-BG000-0032
9CA-BG000-0040
9CA-BG000-0050
9CA-BG000-0063
9CA-BG000-0080
9CA-BG000-0100
00
00
00
00
00
00
00
00
00
00
00
00
00
00
6
10
16
20
25
32
35
40
50
63
80
100
125
160
10
10
10
10
10
10
10
10
10
10
10
10
10
10
1.760
1.760
1.760
1.760
1.760
1.760
1.760
1.760
1.760
1.760
1.760
1.760
1.760
1.760
78.5
54
45
49
15
48
29.5
44.5
NH00-FB
9CB-BG000-0006
9CB-BG000-0010
9CB-BG000-0016
9CB-BG000-0020
9CB-BG000-0025
9CB-BG000-0032
9CB-BG000-0035*
9CB-BG000-0040
9CB-BG000-0050
9CB-BG000-0063
9CB-BG000-0080
9CB-BG000-0100
9CB-BG000-0125
9CB-BG000-0160
0
0
0
0
0
0
0
0
0
25
32
40
50
63
80
100
125
160
5
5
5
5
5
5
5
5
5
1.225
1.225
1.225
1.225
1.225
1.225
1.225
1.225
1.225
125
71
62
66
15
48
29.5
44.5
NH0-FB
9CC-BG000-0025
9CC-BG000-0032
9CC-BG000-0040
9CC-BG000-0050
9CC-BG000-0063
9CC-BG000-0080
9CC-BG000-0100
9CC-BG000-0125
9CC-BG000-0160
9CD-BG000-0050*
9CD-BG000-0063*
9CD-BG000-0080
9CD-BG000-0100
9CD-BG000-0125
9CD-BG000-0160
9CD-BG000-0200
9CD-BG000-0250
9CE-BG000-0080*
9CE-BG000-0100*
9CE-BG000-0125*
9CE-BG000-0160
9CE-BG000-0200
9CE-BG000-0250
9CE-BG000-0315
9CE-BG000-0400
1
1
1
1
1
1
1
1
50
63
80
100
125
160
200
250
3
3
3
3
3
3
3
3
1.300
1.300
1.300
1.300
1.300
1.300
1.300
1.300
135
71
62
68
20
54
45
51
2
2
2
2
2
2
2
2
80
100
125
160
200
250
315
400
3
3
3
3
3
3
3
3
2.005
2.005
2.005
2.005
2.005
2.005
2.005
2.005
150
9CF-BG000-0250*
9CF-BG000-0315
9CF-BG000-0400
9CF-BG000-0500
9CF-BG000-0630
3
3
3
3
3
250
315
400
500
630
1
1
1
1
1
0.980
0.980
0.980
0.980
0.980
150
NH2-FB
10
e3
e1
6
e2
73.5
62
68
25
60
57
58
10
NH1-FB
10
10
e3
e1
Compact
6
e2
73.5
62
68
32
75
69
70
NH3-FB
Note : * The signed currents are manufactured on request.
5/4
-2006
TECHNICAL CHARACTERISTICS, DIMENSIONS and ORDER CODES of NH (H.R.C) FUSE BASES
BMC
Steatit
NH00-FA
Order code :
9CB-C0 00-0000 (BMC)
9CB-A0 00-0000 (Steatit)
C - with screw
K - with clemens
X - with screw
Size
: 00
Rated current : 160 A
Quantity/box : 5
Kg./box
: 0.795 (BMC)
1.060 (Steatit)
Dimensions (mm) :
a : 120 e : 23.5
b: 32.5 f : M8
c : 54
g: 25
d: 101 h: 7.5
5
Order code :
9CC-C0 00-0000 (BMC)
C - with screw
K - with clemens
X - with screw
Size
:0
Rated current : 160 A
Quantity/box : 5
Kg./box
: 1.020
Dimensions (mm) :
a : 170 e : 30.5
b: 32
f : M8
c : 64.5 g: 25
d: 150 h: 7.5
BMC
NH0-FA
BMC
Steatit
Order code :
9CD-C0C00-0000 (BMC)
9CD-A0C00-0000 (Steatit)
Size
:1
Rated current : 250 A
Quantity/box : 3
Kg./box
: 1.375 (BMC)
1.845 (Steatit)
Dimensions (mm) :
a : 200 f : M10
b: 47.5 g: 25
c : 82
h: 10.5
d: 175 k : 30
e : 35
NH1-FA
BMC
Steatit
Order code :
9CE-C0C00-0000 (BMC)
9CE-A0C00-0000 (Steatit)
Size
:2
Rated current : 400 A
Quantity/box : 3
Kg./box
: 1.740 (BMC)
1.950 (Steatit)
Dimensions (mm) :
a : 225 f : M10
b: 47.5 g: 25
c : 88
h: 10.5
d: 200 k : 30
e : 35
NH2-FA
BMC
Steatit
Order code :
9CF-C0C00-0000 (BMC)
9CF-A0C00-0000 (Steatit)
Size
:3
Rated current : 630 A
Quantity/box : 3
Kg./box
: 2.280 (BMC)
2.750 (Steatit)
Dimensions (mm) :
a : 240 f : M12
b: 47.5 g: 25
c : 99
h: 10.5
d: 210 k : 30
e : 37
NH3-FA
-2006
5/5
MAXIMUM POWER LOSSES TABLE
Power Losses :
Power losses of NH Fuse which reaches the steady state
temperature, when the rated current passing through the
circuit. When the rated current passing through fuses, the
temperature of connecting terminal (i.e for NH (HRC) 00 size
Size
Rated current (A)
00
00
00
00
00
00
00
00
00
00
00
00
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
3
3
3
3
3
6
10
16
25
32
40
50
63
80
100
125
160
25
32
40
50
63
80
100
125
160
40
50
63
80
100
125
160
200
250
125
160
200
250
315
400
250
315
400
500
630
and 160 A rated current) should not exceed 65 K.
The power losses of Federal Fuses are below the IEC standars.
This values are shown at the table on below table
comparatively.
Maximum power losses values
TS EN 60269
IEC 60269
VDE 0636
Federal
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
34 W
34 W
34 W
34 W
34 W
34 W
48 W
48 W
48 W
48 W
48 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
12 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
34 W
34 W
34 W
34 W
34 W
34 W
48 W
48 W
48 W
48 W
48 W
7.5 W
7.5 W
7.5 W
7.5 W
7.5 W
7.5 W
7.5 W
7.5 W
7.5 W
7.5 W
7.5 W
—
16 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
16 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
23 W
34 W
34 W
34 W
34 W
34 W
34 W
48 W
48 W
48 W
48 W
48 W
1.7 W
2.0 W
2.2 W
2.7 W
3.5 W
4.2 W
4.5 W
5.8 W
6.6 W
8.5 W
10.0 W
12.0 W
3.4 W
4.0 W
5.0 W
5.7 W
7.2 W
7.5 W
8.5 W
10.0 W
14.0 W
5.3 W
6.0 W
7.2 W
7.5 W
9.0 W
10.0 W
13.0 W
17.5 W
23.0 W
10.0 W
12.0 W
17.5 W
20.3 W
25.0 W
30.0 W
22.0 W
25.0 W
31.0 W
35.0 W
42.0 W
For 00 and 0 size, fuse bases are produced in three models
for easy connection to cables.
With double side screw :
For multi wires or bars (Fig-6a).
With double side bridge terminal :
For single core wires (Fig-6b).
With one side screw and another side terminal :
For single core wires or bars (Fig-6c).
Fuse should be fixed properly to fuse base. Otherwise there
can be an increase in the contact resistance, heating of
contact, power losses and many other kind of faults.
BMC (Bulk Moulding Compound)
It is moulding material which is look like dough, reinforce with
rather tall fiber and it is a composite material which has
adjustment features through changing contribution material
according to demand features.
5/6
NH 00-FA
NH 0-FA
NH 00-FA
NH 0-FA
NH 00-FA
NH 0-FA
Fig-6a
Fig-6b
Fig-6c
BMC is from termoset plastic family and it has the same
features with bakelite and melamine. It’s process conditions
and products have superiority and it is durable for dynamic
power and thermal shock.
-2006