Rated short-circuit
breaking capacity (I
cu
)
01
Purpose of Use
1
Key Technical Parameters
2
The NB1-63 series moulded case circuit breakers are applicable to
circuits with frequency of AC 50/60 Hz, rated voltage up to 240/415 V and
rated current up to 63A. They provide overload and short circuit protection,
and can also be used for infrequent switching of the circuit under normal
circumstances.
Table 1 Key Technical Parameters
Altitude
Pollution level
Installation category
Rated operating voltage
(Ue)
Enclosure protection class
Standard
≤
2,000m
Level 2
Class II and III
AC 230V or 240V (1P)
AC 400V or 415V (2P, 3P, 4P)
6000A, 10000A (NB1-63H)
IP20
I C/EN 60947-2
E
