1. General
1.1 Function
protection of circuits against short-circuit currents, protection of circuits against overload currents, switch, isolation,
The LRM2-63 circuit-breakers are used in domestic installation as well as in commercial and industry electrical distribution systems.
1.2 Selection
Technical data of the network at the point considered: the earthing systems (TNS, TNC), short-circuit current at the circuit-breaker installation point , which must always be less than the breaking capacity of this device, network normal voltage.
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(10-14In) :protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps)
2.Technical parameter
| Model |
LRM2-63 |
| No. Of Poles |
1P, 2P, 3P, 4P |
| Rated Current (In):(A) |
1A,2A,3A,6A,10A,16A,20A,25A,32A,40A,50A,63A |
| Rated voltage(Un):(V) |
220V~/230V~/240V~(1P), 380V~/400V~/415V~ (2P,3P,4P); |
| Rated frequency:(Hz) |
50/60Hz |
| Rated Insulation voltage Ui:(V) |
415V |
| Rated impulse withstand voltage(1.2/50us)Uimp:(V) |
4000V |
| Rated short-circuit capacity Icn:(A) |
6000A |
| Instaneous Tripping current: |
B Type(3In~5In)
C Type(5In~10In)
D Type(10In~20In) |
| Protection Degree |
IP20 |
| Contact position indication |
Red/Green |
| Ambient temperature |
-5~40ºC |
| Method of mounting |
On 35mm Din rail |
| Terminal connection type |
Screw terminal, Pillar terminal with clamp |
| Connection capacity: |
16mm² flexible or 25mm² rigid up to 25A ratings ,25mm² flexible or 35mm² rigid from 32A to 63A ratings |
| Tightening torque |
2.5N.m |
| Connection |
From top and bottom |
3. Technical data:3.
Overall & Installation Dimensions
Detailed Photos
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