Miniature circuit breakers are primarily used to protect circuits and electrical equipment against overloads, short circuits, and electrical accidents, while also enabling infrequent operation and switching of circuits.
FEATURES AND BENEFITS
Short circuit protection
Overload protection
Control function
Isolation function
Technical Characteristics
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Product Series |
iRB3-125H |
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Standards met |
IEC/EN 60947-2,GB/T 14048.2 |
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Product certification |
CCC,TUV,CE,CB |
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Electrical characteristics |
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Number of poles |
1P,2P,3P,4P |
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Rated current In(A) |
63,80,100,125 |
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Rated voltage Ue (V) |
AC 230V(1P), AC 400V(2P/3P/4P), DC 80V(1P), DC125V(2P) |
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Rated insulation voltage Ui (V) |
500V |
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Rated operating frequency f (Hz) |
50/60 |
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Rated impulse withstand voltage Uimp (kV) |
4 |
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Rated short-circuit capacity lcn |
10kA |
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Rated ultimate short-circuit breaking capacity lcu |
10kA |
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Rated operational short-circuit breaking capacity lcs |
7.5kA |
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Instantaneous break characteristic |
C,D |
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Mechanical characteristics |
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Mechanical lifespan |
10,000 Times |
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Electrical lifespan (In) |
1,500 times |
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Protection level |
Circuit breaker body |
IP20 |
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Installed in the distribution box |
IP40 |
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Other characteristics |
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Operating temperature |
-40°C~+70°C |
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Storage temperature |
-40°C~+70°C |
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Wiring method |
Top entry, bottom exit |
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Installation direction |
Vertical installation |
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Resistance to damp and heat |
Class 2 (temperature 55C, relative humidity 95%) |
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Wiring |
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Current rating |
Screw |
Rated torque (Nm) |
Maximum torque (Nm) |
National Standard Rated Torque (Nm) |
Maximum wiring capacity (mm²) |
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Hard wire |
Soft wire |
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63-125A |
M7 |
3.5 |
8 |
3.5 |
50 |
35 |
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Reference weight (g) |
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1P |
2P |
3P |
4P |
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157.8 |
315.6 |
473.4 |
631.2 |
