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Technical
Section 9
Dimensions
Section 10
C60H circuit breakers B, C and D
curves BS EN 60898: 1000A ,
BS EN 60947-2: 15kA
Circuit protection
Function
The circuit-breakers combine the following functions:
b
b
Protection of circuits against short-circuit currents
v
v
Protection of circuits against overload currents
v
v
Control
v
v
Isolation
v
v
Protection of persons against indirect contact with TN and IT neutral systems
v
v
C60H circuit-breakers are used in the tertiary and industrial sectors
Tripping curves
B curve
When the short-circuit currents are weak (generators, long cables)
Power circuit:
b
b
Ratings: 1 to 63 A set at 30 °C
v
v
Tripping curve: the magnetic trip units operate between 3 and 5 In
v
v
C curve
Cables feeding conventional loads
Power circuit:
b
b
Ratings: 1 to 63 A set at 30 °C
v
v
Tripping curve: the magnetic trip units operate between 5 and 10 In
v
v
D curve
Loads with high inrush currents (motors, transformers)
Power circuit:
b
b
Ratings: 1 to 63 A set at 40 °C
v
v
Tripping curve: the magnetic trip units operate between 10 and 14 In
v
v
Technical data according to BS EN 60898
Power circuit:
b
b
Voltage rating (Ue): 440 V AC
v
v
Breaking capacity:
v
v
According to BS EN 60898, Icn ultimate breaking capacity (O-CO cycle):
--
Rating (A)
Type
Voltage (V)
Breaking capacity Icn (A)
1...63
1P
230/400
10000
1P+N
230
10000
2P, 3P, 4P
400
10000
limitation class (BS EN 60898): 3.
v
v
Technical data according to BS EN 60947-2
Power circuit:
b
b
Voltage rating (Ue): 440 V AC
v
v
Impulse voltage (Uimp): 6 kV
v
v
Insulation voltage (Ui): 500 V AC
v
v
Breaking capacity:
v
v
According to BS EN 60947-2, Icu ultimate breaking capacity (O-CO cycle):
--
Rating (A)
Type
Voltage (V)
Breaking capacity Icu (kA)
1...63
1P
130
30
230...240
15
400...415
4
(1)
1P+N, 2P, 3P, 4P
230...240
30
400...415
15
440
10
(1)
Breaking capacity for 1 pole with IT isolated neutral system (case of double fault).
General technical data
Fast closing: allows the high inrush currents of some loads to be better held.
b
b
Isolation with positive break indication: opening is indicated by a green strip on the
b
b
device operating handle. This indicator shows opening contacts of all the poles
Number of cycles (O-C): 20000
b
b
Environment:
b
b
Tropicalisation: treatment 2 (relative humidity: 95 % at 55 °C) according to
v
v
IEC 60068-1
Weight (g):
v
v
Type
1P
2P
3P
4P
120
240
360
480
Connection: tunnel terminals for the following cables:
b
b
16 mm v
v
2
flexible or 25 mm
2
rigid up to 25 A ratings
25 mm v
v
2
flexible or 35 mm
2
rigid for 32 to 63 A ratings