1. General
1.1 Function
The LRM9-125 circuit-breakers are used in domestic installation as well as in commercial and industry electrical distribution systems, it's protection of circuits against short-circuit currents, overload currents, ON/OFF, isolation,
1.2 Selection
Tripping curves:
B curve (3-5In):protection for people and big length cables in TN and IT systems.
C curve (5-10In):protection for resistive and inductive loads with low inrush current.
D curve(10-20In) :protection for circuits which supply loads with high inrush current at the circuit closing.
2. Technical data:
| Electrical PARAMETERS |
No. Of Poles |
1P, 2P, 3P, 4P |
| Rated Current (In):(A) |
6A,10A,16A,20A,25A,32A,40A,50A,63A,80A,100A,125A |
| Rated voltage(Un):(V) |
220V~/230V~/240V~1P, 380V~/400V~/415V ~ (2P,3P,4P) |
| Rated frequency:(Hz) |
50/60Hz |
| Rated Insulation voltage Ui:(V) |
500V |
| Rated impulse withstand voltage(1.2/50us)Uimp:(V) |
6000V |
| Rated short-circuit capacity Icn:(A) |
10000A |
|
Energy limiting class
|
3 |
| Instaneous Tripping current: |
B Type(3In~5In)
C Type(5In~10In)
D Type(10In~20In) |
| Grid distance(short-circuit tests) |
45mm |
| Electrical life |
4,000 Nos of operating cycles at rated current |
| Mechanical PARAMETERS |
Protection Degree |
IP20 |
| Material group |
IIIa |
| Protection against extemal influences: |
Enclosed |
| Contact position indication |
Red/Green |
| Mechanical life |
20,000 Nos of operating cycles at rated current |
| Contact position indicator |
Yes |
| Reference ambient calibration air temperature |
30ºC |
| Installation |
Method of mounting |
On symmetrical Din rail 35mm |
| Terminal size top/bottom for cable |
35mm² |
| 18-4AWG |
| Tightening torque |
3.0N.m |
| Mounting |
On DIN rail EN 60715 (35mm) by means of fast big clip device |
| Operating means |
Lever |
| Connection |
From top and bottom |
3.
Overall & Installation Dimensions
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