LMB1LE-80 RCBO Main switch with leakage protection

LMB1LE-80 RCBO Main switch with leakage protection

  • 3-in-1 full safety protection: leakage protection, overload protection, short circuit protection
  • 30mA high sensitivity, fast tripping speed ≤0.1s, reliable human body safety guard
  • Equipped with test button for regular function inspection
  • Reset indicator design, easy to judge tripping cause
  • High flame retardant shell, high temperature resistant, anti-aging and arc-proof
  • Complete pole types and current specifications, easy matching for different circuits
  • Stable performance, low power consumption, long service life
  • 3-in-1 full safety protection: leakage protection, overload protection, short circuit protection
  • 30mA high sensitivity, fast tripping speed ≤0.1s, reliable human body safety guard
  • Equipped with test button for regular function inspection
  • Reset indicator design, easy to judge tripping cause
  • High flame retardant shell, high temperature resistant, anti-aging and arc-proof
  • Complete pole types and current specifications, easy matching for different circuits
  • Stable performance, low power consumption, long service life

Product Overview

RCBO integrates circuit breaker and residual current protection function in one unit. It provides triple protection against electric leakage, overload and short circuit. It cuts off power within 0.1s once fault occurs, effectively preventing electric shock accidents and electrical fire hazards. Widely used in residential, commercial and industrial power distribution systems.

Working Principle

The built-in zero-sequence current transformer monitors current balance between live wire and neutral wire in real time.
  1. Normal operation: Incoming and outgoing current keep balanced, breaker stays closed normally.
  2. Electric leakage & electric shock: Unbalanced current triggers trip mechanism for instant power cut.
  3. Overload & short circuit: Thermal and electromagnetic trip structures act rapidly to protect wires and electrical equipment.

Core Advantages

  • 3-in-1 full safety protection: leakage protection, overload protection, short circuit protection
  • 30mA high sensitivity, fast tripping speed ≤0.1s, reliable human body safety guard
  • Equipped with test button for regular function inspection
  • Reset indicator design, easy to judge tripping cause
  • High flame retardant shell, high temperature resistant, anti-aging and arc-proof
  • Complete pole types and current specifications, easy matching for different circuits
  • Stable performance, low power consumption, long service life

Main Technical Parameters

Item Specification
Rated Voltage AC230V / AC400V 50Hz
Rated Current 16A/20A/32A/40A/63A optional
Rated Residual Operating Current 30mA / 100mA / 300mA
Residual Operating Time ≤0.1s
Rated Short-circuit Breaking Capacity 6kA
Pole Number 1P+N / 2P / 3P+N / 4P
Executive Standard IEC60898

Application Scenarios

  • Household use: distribution box main switch, kitchen, bathroom, air conditioner and socket circuits
  • Commercial use: office buildings, shops, hotel power distribution system
  • Industrial use: water pump, fan, small machine tool and other equipment power supply
  • Outdoor engineering, construction site and wet environment power supply

Installation & Notes

  1. Wire in from top and out from bottom, connect live wire and neutral wire correctly
  2. Press test button monthly to verify normal leakage protection function
  3. Select matched rated current according to actual load power
  4. Cut off power supply and check circuit leakage fault before re-closing after tripping
  5. Professional electrician installation is recommended

Quality Guarantee

Strictly comply with international safety standards, pass multiple safety tests. High precision internal components ensure stable operation in long-term use, fully secure daily electricity safety.

Product Overview

RCBO integrates circuit breaker and residual current protection function in one unit. It provides triple protection against electric leakage, overload and short circuit. It cuts off power within 0.1s once fault occurs, effectively preventing electric shock accidents and electrical fire hazards. Widely used in residential, commercial and industrial power distribution systems.

Working Principle

The built-in zero-sequence current transformer monitors current balance between live wire and neutral wire in real time.
  1. Normal operation: Incoming and outgoing current keep balanced, breaker stays closed normally.
  2. Electric leakage & electric shock: Unbalanced current triggers trip mechanism for instant power cut.
  3. Overload & short circuit: Thermal and electromagnetic trip structures act rapidly to protect wires and electrical equipment.

Core Advantages

  • 3-in-1 full safety protection: leakage protection, overload protection, short circuit protection
  • 30mA high sensitivity, fast tripping speed ≤0.1s, reliable human body safety guard
  • Equipped with test button for regular function inspection
  • Reset indicator design, easy to judge tripping cause
  • High flame retardant shell, high temperature resistant, anti-aging and arc-proof
  • Complete pole types and current specifications, easy matching for different circuits
  • Stable performance, low power consumption, long service life

Main Technical Parameters

Item Specification
Rated Voltage AC230V / AC400V 50Hz
Rated Current 16A/20A/32A/40A/63A optional
Rated Residual Operating Current 30mA / 100mA / 300mA
Residual Operating Time ≤0.1s
Rated Short-circuit Breaking Capacity 6kA
Pole Number 1P+N / 2P / 3P+N / 4P
Executive Standard IEC60898

Application Scenarios

  • Household use: distribution box main switch, kitchen, bathroom, air conditioner and socket circuits
  • Commercial use: office buildings, shops, hotel power distribution system
  • Industrial use: water pump, fan, small machine tool and other equipment power supply
  • Outdoor engineering, construction site and wet environment power supply

Installation & Notes

  1. Wire in from top and out from bottom, connect live wire and neutral wire correctly
  2. Press test button monthly to verify normal leakage protection function
  3. Select matched rated current according to actual load power
  4. Cut off power supply and check circuit leakage fault before re-closing after tripping
  5. Professional electrician installation is recommended

Quality Guarantee

Strictly comply with international safety standards, pass multiple safety tests. High precision internal components ensure stable operation in long-term use, fully secure daily electricity safety.

Data Download

LVMA low voltage selection manual

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