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Honeywell
8. FUSES AND FUSEHOLDER
8.1 Fuses and Fuse Code
CD3000M unit must be protected by fuses against short circuit selecting the proper I²t that must be
lower than thyristor one. The same caution must be taken if Circuit Breaker is used. Remember that
is very difficult to protect the thyristor if this choise is done.
WARNING!! Equipment short circuit protected by Semiconductor Fuse type with
proper I
Bussmann Div - Cooper (UK) Ltd
(200 kA
RMS
Sizes
Fuse Mod. No.
/modéle fusible
125A
200 FEE
150A
200 FEE
300A
350 FM
400A
550 FMM
500A
700 FMM
600A
2x 450 FMM
700A
2x 450 FMM
FERRAZ (200kA @ 660V)
6,6 URB 000
200A
BS88/315
High speed fuses are only used for the thyristor protection and can not be used to
protect the installation.
The user installation must be protect by electromagnetic circuit breaker or by fuse
isolator.
The warranty of thyristor is null if no proper fuses are used. See tab above.
www.honeywell.com/imc
CD3000M-1PH from 125A to 700A
2
t
Symmetrical A.I.C.)
Current
(A
)
(A
RMS
200
11400
200
11400
350
105000
550
215000
700
420000
450
105000
450
105000
315
82000
Ferraz Shawmut SA
(200 kA
I²t
V ac Fuse Mod. No.
2
sec)
/modéle fusible
6,6 URY 000
660
BS88/200
6,6 URY 000
660
BS88/200
6,6 URZ 000
660
BS88 Z 350
6,6 URZ 000
660
BS88 Z 550
6,6 URZ 000
660
BS88 Z 700
6,6 URZ 2x000
660
BS88 Z 450
6,6 URZ 2x000
660
BS88 Z 700
SIBA (300kA @ 600V, 200kA @ 700V)
660
20 559 20
34
Symmetrical A.I.C.)
RMS
Current
(A
)
RMS
200
200
350
550
700
2X450
2X450
315
User's Manual
I²t
Vac
2
(A
sec)
16000
660
16000
660
85000
660
208000
660
340000
660
208000
660
208000
660
77000
660
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