1. General
1.1 Function
protection of circuits against short-circuit currents, protection of circuits against overload currents, switch, isolation,
The LRM3-63 circuit-breakers are used in domestic installation as well as in commercial and industry electrical distribution systems.
1.2 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 |
| Rated voltage(Ue):(V) |
1P 250VDC, 2P 500VDC, 3P 750VDC, 4P 1000VDC |
| Rated Insulation voltage Ui:(V) |
500V |
| Rated impulse withstand voltage(1.2/50us)Uimp:(V) |
6000V |
| Rated short-circuit capacity Icn:(A) |
6000A |
|
Energy limiting class
|
3 |
| Electrical life |
4,000 Nos of operating cycles at rated current |
| Mechanical PARAMETERS |
Protection Degree |
IP20 |
| Material group |
IIIa |
| 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 |
-50ºC~+40ºC |
| Installation |
Method of mounting |
On symmetrical Din rail 35mm |
| Terminal connection type |
Screw terminal,Cable/U-type busbar/Pin-type busbar |
| Terminal size top/bottom for cable |
25mm² |
| 18-4AWG |
| Terminal size top/bottom for busbar |
10mm² |
| 18-8AWG |
| Tightening torque |
2.5N.m |
| Mounting |
On DIN rail EN 60715 (35mm) by means of fast clip device |
| Operating means |
Lever |
| Connection |
From top and bottom |
3.
Overall & Installation Dimensions
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