01
Purpose of Use
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Key Technical Parameters
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The NL1-63 residual current operated circuit breaker is suitable for a line
with a frequency of AC 50/60Hz, a rated voltage of up to 240/415 V and a
rated current of up to 63A. It provides leakage protection, and can also be
used for infrequent making and breaking of the circuit under normal
circumstances.
Table 1 Key Technical Parameters
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2
3
4
No.
Parameter or performance Parameter value or performance value
Rated voltage (Un)
Rated current (In)
1P+N: AC 230V/240V; 3P+N: AC 400V/415V
16A, 25A, 32A, 40A, 63A
5
6
7
8
Rated residual operating
current (IΔn)
Operating conditions with
DC components
By the delay when the
residual current appears
Rated limited short-circuit
capacity (Inc)
Rated residual making and
breaking capacity (IΔm)
0.01A (only 1P+N, 16/25/32A),
0.03A, 0.1A, 0.3A, 0.5A
A type and AC type
No delay: general purpose type, and SI/G type
6,000A, 10,000A
500A (In=16A, 25A, 32A, 40A),
630A (In=63A)
Altitude
Pollution level
Protection level
Installation category
≤ 2,000m
Level 2
IP20
Class II and III
9
10
11