Publicidad
CR1
C
haracteristic of the general circuit
breaker
All models except CR-NDT and CR-NFDT
Interruption
CR-PS
capacity
CR-PT
IEC 898
Icn = 10 kA
maximum
IEC 898
Ics = 10 kA
service
IEC 947-2
Icu = 15 kA
maximum
IEC 947-2
Ics = 10 kA
service
Curve
D
CR-NDT Models
Interruption
Defrost
capacity
Icn = 6 kA
IEC 898
maximum
Ics = 6 kA
IEC 898
service
IEC 947-2
Icu = 10 kA
maximum
IEC 947-2
Ics = 7,5 kA
service
Curve
C
CR-NFDT Models
Defrost and controller in the NFDT models are
fuse protected.
For further details refer to manufacturer's
documentation (in this case ABB)
© 2010 Johnson Controls, Inc.
All manuals and user guides at all-guides.com
CR-NS
CR-NT
Icn = 6 kA
Ics = 6 kA
Icu = 10 kA
Ics = 7,5 kA
C
Controller
Fan...
Icn = 10 kA
Ics = 10 kA
Icu = 15 kA
Ics = 10 kA
D
C
haracteristic of the circuit breaker
for motor
(three phase models only).
Item
Control
range
CR-PT150-1
2,5....4
CR-PT250-1
4....6,3
6,3....9
CR-PT400-1
CR-PT550-1
9....12,5
CR-PT750-1
12,5....16
2,5....4
CR-NT150-1
CR-NT250-1
4....6,3
CR-NT400-1
6,3....9
9....12,5
CR-NT550-1
CR-NT750-1
12,5....16
2,5....4
CR-NDT150-1
4....6,3
CR-NDT250-1
CR-NDT400-1
6,3....9
9....12,5
CR-NDT550-1
12,5....16
CR-NDT750-1
CR-NFDT150-1
2,5....4
6,3....9
CR-NFDT400-1
CR-NFDT750-1
12,5....16
Fuses are nor required for a short circuit current
below the interruption capacity of the circuit
breaker.
For further details refer to manufacturer's
documentation (in this case ABB).
13
Interruption
capacity against
short circuit
380-400 Vac
Ics (kA)
100
100
100
75
60
100
100
100
75
60
100
100
100
75
60
100
100
60
Catalogue Section 9
Publicidad
