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

Miniature Circuit Breaker Manual

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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