Siemens Circuit Breaker 40A 2P 10KA curve D 2 modules 5SL42408

Siemens
Siemens
SIE 5SL42408 4001869441474

Siemens Circuit Breaker 5SL42408 2 poles 40A curve D, breaking capacity 10 kA. Ideal for circuits with high inrush currents such as motors, pumps, and transformers.

  • Siemens circuit breaker series 5SL

  • 2 poles 2 DIN modules

  • Rated current: 40 A

  • Curve D: tripping threshold from 10 to 20× In

  • Breaking capacity: 10 kA

  • Insulation voltage: 440 V AC

  • Mechanical endurance: 10,000 cycles

  • Overvoltage category: III

  • Pollution degree: 2

  • Ideal for inductive loads with high starting currents.

Do you have questions about this product or did you not find what you were looking for? Ask us!
Siemens Circuit Breaker 40A 2P 10KA curve D 2 modules 5SL42408
€43.19
€43.19

€43.19
Tax included
Calculate shipping cost
Items Available: 2
Further availability of the manufacturer
€43.19

Buy it within and receive it from Wednesday, 24 December
Two-year warranty
Easy return within 14 days
Purchase with tax breaks

Are you a professional ?

Request access to

Trustpilot

Siemens Circuit Breaker Curve D: Reliable Protection for Motors and Transformers

The Siemens circuit breaker is designed to protect electrical circuits from overloads and short circuits, ensuring a quick and safe response. The curve D, designed for highly inductive loads, prevents unwanted tripping in the presence of high inrush currents typical of:

  • Electric motors

  • Pumps and compressors

  • Transformers

  • Industrial plants and automation panels

The ability to withstand up to 1020 times the nominal current makes it perfect for professional and industrial applications.

Siemens Construction: Quality and Long Life

Designed to last over time, the device guarantees 10,000 mechanical operating cycles, ensuring reliability even in systems subject to frequent operations.

The DIN rail mounting and 2-module format allow for quick installation in domestic, commercial, and industrial electrical panels.

GENERAL TECHNICAL DATA

Product Brand SENTRON
Product Name Circuit Breaker
Number of Poles 2
Pole Execution 2 poles
Tripping Characteristic Class D
Mechanical Life 10,000 cycles
Overvoltage Category 3
Pollution Degree 2


VOLTAGE

Type of Operating Voltage AC
Type of Voltage Use AC or DC only, mixed use not allowed
Insulation Voltage (Ui) 440 V (multiphase AC)
Operating Current at 30°C 40 A
Operating Current at 40°C 37.89 A
Operating Current at 55°C 34.47 A
Nominal AC Current 40 A


SUPPLY VOLTAGE

AC Supply Voltage 400 V
Frequency 50 / 60 Hz
Max AC Operating Voltage 440 V
Max DC Operating Voltage 62.5 V (peak 72 V)


PROTECTION CLASS

IP Protection Degree IP20 (with connected conductors)


SWITCHING CAPACITY

Breaking Capacity EN 60898 10 kA
Breaking Capacity IEC 60947-2 10 kA


DISSIPATION

Power Dissipation per Pole 3.3 W


SUITABILITY FOR USE

Applications Residential Building / Infrastructure


DETAILS

Protection Against Accidental Contact Yes
Separable Neutral Conductor No
Halogen-Free Yes
Sealable Product Yes
Silicone-Free Sì
Additional mountable devices Yes, flush mountable

There are no reviews

Data sheet

Modules:
2
Poles:
2P
Curve:
D
Breaking capacity:
10KA
Amps:
40A
Circuit Protections:
Circuit breakers
Contact details of the manufacturer and the responsible person