Basic Info.
Model NO.
LRM7-63
Arc-extinguishing Medium
Air
Installation
Fixed
Structure
MCB
Poles Number
1,2,3,4
Type
Circuit Breaker
Function
Circuit-Breaker Failure Protection, Overcurrent Protection, Short-Circuit Protection, Overload Protection
Certification
ISO9001-2000, CE, CB, CCC
Model
Lrm7-63
Rated Voltage(V)
230/400 VAC
Rated Frequency
50/60Hz
Number of Poles
1p. 2p, 3p, 4p
Transport Package
60 PCS/Carton
Specification
IEC60898-1/IEC60947-2
Trademark
Long Road/OEM
Origin
China
Production Capacity
50000 Poles/Month
Packaging & Delivery
Package Size
8.58cm * 7.12cm * 7.51cm
Package Gross Weight
0.040kg
Product Description
1. General
1.1 Function
The LRM7-63 circuit-breakers are used in domestic installation as well as in commercial and industry electrical distribution systems, protection of circuits against short-circuit currents and overload currents. ON/OFF, isolation.
The LRM7-63 circuit-breakers are used in domestic installation as well as in commercial and industry electrical distribution systems, protection of circuits against short-circuit currents and 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 (LV/LV transformers, breakdown lamps)
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(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) | 6000A | |
| 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 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 big clip device | |
| Operating means | Lever | |
| Connection | From top and bottom |
