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LS Automatic Circuit Breaker 40A Single-pole AC 03.018.0027
Automatic Circuit Breaker

LS Automatic Circuit Breaker 40A Single-pole AC 03.018.0027

The LS 40 A single-pole miniature circuit breaker protects against overcurrent and short circuits. It has a C tripping curve and is intended for main power supplies in large buildings and commercial...

The LS 40 A single-pole miniature circuit breaker protects against overcurrent and short circuits. It has a C tripping curve and is intended for main power supplies in large buildings and commercial installations, as well as for automation panels.

  • Number of poles: 1
  • Rated current: 40 A
  • Current type: AC
  • Rated voltage: 230/400 V AC at 50/60 Hz
  • Tripping curve:...
See Description & Specifications See Description & Specifications
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Product report

Description & Specifications

The LS 40 A single-pole miniature circuit breaker protects against overcurrent and short circuits. It has a C tripping curve and is intended for main power supplies in large buildings and commercial installations, as well as for automation panels.

  • Number of poles: 1
  • Rated current: 40 A
  • Current type: AC
  • Rated voltage: 230/400 V AC at 50/60 Hz
  • Tripping curve: C
  • Tripping threshold: 5–10 × In
  • Breaking capacity: 6 kA
  • Width: 17.8 mm per pole
  • Mounting: 35 mm DIN rail
  • Terminal capacity: Up to 25 mm²
  • Electrical endurance: 6,000 switching cycles
  • Standards: IEC60898
  • Certifications: RoHS, CB, CE, ISO9001, ISO14001, ISO45001

Manufacturer

Manufacturer Details

Warnings & Safety Information

Specifications

Number of Poles
1
Rated Current
40 A
Operating Curve
Curve C

Operating Curve

The tripping curve shows the time required for the circuit breaker to switch off in relation to the current passing through it. For small overcurrents, the tripping is delayed to avoid unnecessary interruptions, while for very high values, such as in the case of a short circuit, the breaker operates immediately to protect the circuit. Different types of curves are used depending on the needs of each installation and the type of loads.

Curve C

The most common in general installations, ideal for circuits with motors or electronic devices.

Power Supply

AC
Yes
DC
No

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (1)

4.0
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4.0
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