LMB1-63 MCB 6kA
Miniature Circuit Breaker (MCB) is the core component for Circuit protection and on-off control in low-voltage distribution systems, which is widely used in homes, commercial buildings and small industrial scenarios.
- Model name: LMB1-63
- Rated current:1,2,3,4,5,6,8,10,13,16,20,25,32,40,50,63A
- Rated voltage :230/415V
- Poles:1P,2P,3P,4P
- Rated Breaking capacity:6,000A
- Standard: IEC/EN 60898-1,IEC/EN 60947-2
LMB1 Miniature circuit breakers(MCB) conforming to IEC 60898-1 standards, are typically used in AC 50/60Hz circuits with a rated voltage of 230/400V and a rated current up to 63A. They provide overload and short-circuit protection and can be manually switched on and off infrequently. Mounted on a 35mm DIN rail, their compact design makes them suitable for dense placement within distribution boxes.
| Standard | IEC/EN60898-1,IEC/EN60947-2 |
|---|---|
| Protection | Overcurrent and short circuit |
| Type of trip | Thermo-magnetic |
| Poles | 1P,2P,3P,4P |
| Rated voltage(Ue) | AC230/415V |
| Rated current(In) | 1,2,3,4,5,6,10,16,20,25,32,40,50,63A |
| Rated frequency | 50/60Hz |
| Rated breaking capacity | 6000A |
| Rated impulse withstand voltage(Uimp) | 4000V |
| Thermal release charateristic | (1.13-1.45)*In |
| Magnetic release characteristic | B:(3-5)*In,C:(5-10)*In,D:(10-20)*In |
| Electrical life | 4000 Cycles |
| Mechanical life | 10000 Cycles |
| Contact position indicator | Yes |
| Protection degree | IP20 |
| Ambient temperature | -5°C to +40°C,Max.95%humidity |
| Terminal connection type | Cable/Pin-type busbar |
| Max.terminal size for cable | 25mm² |
| Installation | Mounting on 35mm Din rail |
| Connection | From top and bottom |
Tripping Characteristic

Overall and Installation Dimension(mm)

Features
This LMB1 is a low voltage miniature circuit breaker (MCB)
The rated short circuit breaking capacity goes up to 6kA at 415VAC conforming to IEC/EN 60947-2 standard and 6kA at 415VAC conforming to IEC/EN60898-1 standard
This product complies with both industrial standard EN/IEC 60898-1 and residential standard EN/IEC 60947-2
It has been designed to offer enhanced protection by preventing, protecting people and equipment from electrical threats
This product protects from short circuit, earth leakage and overload
It has an electrical endurance going up to 10000 cycles and a mechanical endurance going up to 20000 cycles
The Ue operational voltage is 240VAC
The Ui rated insulation voltage is 500VAC
The Uimp rated impulse withstand voltage is 6kV
The product can be mounted on a 35 mm C 45 DIN Rail
Its width is pitches of 9mm
Pollution degree is 3
The dimensions are (W) 18/36/54/72mm x (H) 81mm x (D) 72mm
It has an IP20 degree of protection (as per IEC/EN 60529) on its terminals
The operating temperature is -30°C to 70°C
The storage temperature is -40°C to 80°C
| Size | Weight(1pcs) | Weight(1Box) | Weight(1Crate) | |
|---|---|---|---|---|
| 1P | 18*81*78 | 76g | 1k1/12pcs | 15kg/180pcs |
| 2P | 36*81*78 | 153g | 1kg/6pcs | 15kg/90pcs |
| 3P | 54*81*78 | 230g | 1kg/4pcs | 15kg/60pcs |
| 4P | 72*81*78 | 305g | 1kg/3pcs | 15kg/45pvs |
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