Low Voltage Brief Catalogue RCBO
RCBO
P - 020
Low Voltage Brief Catalogue
P-017
NB310L Residual Current Operated Circuit Breaker with Over-current Protection (Magnetic)
1. General
� Protection against risk of fire � Protection against risk of electric shock
� Protection against overload � Protection against short circuit � Contact position indicator
2. Technical features
NB310L (2P)
IEC/EN 61009-1
Standard Type (wave form of the earth leakage sensed)
A, AC
A
3PN
2P
Poles
Thermo-magnetic release characteristic
B, C
6-40 3P+N 400
A
6-32 2P
Rated current In Poles
Rated voltage Ue Rated sensitivity I △ n Rated short-circuit capacity lcn Break time under I △ n Electrical life Mechanical life
230/240
A V A s
0.03
6,000 ≤ 0.1 2,000 2,000
10000
On DIN rail EN 60715 (35mm) by means of fast clip device From top and bottom
Mounting
Connection
3. Curve
NB310L (3PN)
B, C curve
t(s) 10000 5000 1h 2000 1000
B
500 200 100
50 20 10
C
5 2 1
0.5 0.2 0.1
0.05 0.02 0.01
0.005 0.002 0.001
0.5 1
2 34 5 7 10 20 30 5070100 200 I/In
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