LMB5-40 C40 MCB 1P+N Miniature Circuit Breaker

LMB5-40 C40 MCB 1P+N Miniature Circuit Breaker

LMB5-40 is a compact 1P+N miniature circuit breaker (MCB) with C tripping curve, rated 6-40A, 230V AC and 3000A breaking capacity ,18mm Width. This 1-module DIN rail breaker complies with IEC60898-1 standard with CE marking. It provides reliable overload and short-circuit protection for residential wiring, lighting and small power distribution circuits. Built with clear status indicator, simple installation and stable performance.

LMB5-40 is a compact 1P+N miniature circuit breaker (MCB) with C tripping curve, rated 6-40A, 230V AC and 3000A breaking capacity ,18mm Width. This 1-module DIN rail breaker complies with IEC60898-1 standard with CE marking. It provides reliable overload and short-circuit protection for residential wiring, lighting and small power distribution circuits. Built with clear status indicator, simple installation and stable performance.

Product Overview

The LVMA LMB5-40 series 1P+N miniature circuit breaker (MCB) is a space-saving single-module protective device designed for 230V AC single-phase electrical systems. This C16 model features a C-type tripping curve, ideal for general lighting and resistive-inductive household and commercial loads.

Built according to IEC 60898-1 and GB/T 10963.1 standards with CE certification, it delivers 3kA short-circuit breaking capacity to cut off faulty circuits rapidly, protecting cables and downstream electrical appliances from overload and short circuit damage. The visible green status indicator helps users quickly judge working status. It adopts standard DIN rail mounting for fast wiring and panel assembly.

Key Features

✅ Compact 1-module 1P+N design (live protected, neutral passed through)
✅ C curve trip characteristic, suitable for lighting & general AC loads
✅ Rated current: 16A, Rated voltage: 230V~ 50Hz
✅ Short-circuit breaking capacity: 3000A
✅ Compliance: IEC60898-1, GB/T10963.1, CE approved
✅ DIN rail mounting, easy installation & wiring
✅ Clear ON/OFF toggle switch + working indicator
✅ Finger-safe terminal design for safer operation
✅ Stable thermal-magnetic trip system, long mechanical life

Specifications

ItemParameter
ModelLMB5-40
Poles1P+N (1 protected pole + neutral)
Rated Current40A
Trip CurveC Curve
Rated Voltage230V AC, 50Hz
Breaking Capacity3000A (3kA)
Mounting35mm DIN Rail
StandardIEC 60898-1, GB/T 10963.1
CertificationCE
Module Width18mm (1 module)

Application Scenarios

  • Residential distribution boxes, home lighting circuits
  • Small commercial power distribution
  • Office socket & lighting protection
  • Low-voltage single-phase power distribution systems
  • Solar auxiliary AC circuit protection

Installation Notes

  1. Install on standard 35mm DIN rail inside distribution cabinet.
  2. Rated working environment temperature: -5℃ ~ +40℃.
  3. Wiring strictly follow L (live) and N (neutral) marks on the product.
  4. Regular inspection is recommended after long-term operation.
  5. Only professional electricians are allowed for installation and maintenance.

Product Overview

The LVMA LMB5-40 series 1P+N miniature circuit breaker (MCB) is a space-saving single-module protective device designed for 230V AC single-phase electrical systems. This C16 model features a C-type tripping curve, ideal for general lighting and resistive-inductive household and commercial loads.

Built according to IEC 60898-1 and GB/T 10963.1 standards with CE certification, it delivers 3kA short-circuit breaking capacity to cut off faulty circuits rapidly, protecting cables and downstream electrical appliances from overload and short circuit damage. The visible green status indicator helps users quickly judge working status. It adopts standard DIN rail mounting for fast wiring and panel assembly.

Key Features

✅ Compact 1-module 1P+N design (live protected, neutral passed through)
✅ C curve trip characteristic, suitable for lighting & general AC loads
✅ Rated current: 16A, Rated voltage: 230V~ 50Hz
✅ Short-circuit breaking capacity: 3000A
✅ Compliance: IEC60898-1, GB/T10963.1, CE approved
✅ DIN rail mounting, easy installation & wiring
✅ Clear ON/OFF toggle switch + working indicator
✅ Finger-safe terminal design for safer operation
✅ Stable thermal-magnetic trip system, long mechanical life

Specifications

ItemParameter
ModelLMB5-40
Poles1P+N (1 protected pole + neutral)
Rated Current40A
Trip CurveC Curve
Rated Voltage230V AC, 50Hz
Breaking Capacity3000A (3kA)
Mounting35mm DIN Rail
StandardIEC 60898-1, GB/T 10963.1
CertificationCE
Module Width18mm (1 module)

Application Scenarios

  • Residential distribution boxes, home lighting circuits
  • Small commercial power distribution
  • Office socket & lighting protection
  • Low-voltage single-phase power distribution systems
  • Solar auxiliary AC circuit protection

Installation Notes

  1. Install on standard 35mm DIN rail inside distribution cabinet.
  2. Rated working environment temperature: -5℃ ~ +40℃.
  3. Wiring strictly follow L (live) and N (neutral) marks on the product.
  4. Regular inspection is recommended after long-term operation.
  5. Only professional electricians are allowed for installation and maintenance.

Data Download

LVMA low voltage selection manual

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