Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

Siemens Main switch 125A 4p IP10 On Wait/Rep 3KD0642-2LG20-3

Price in EUR including VAT
Delivered between 3.2.2026 and 17.2.2026
free shipping

Product details

The Siemens main switch 125A 4p IP10 is a reliable and powerful device designed for system power supply. With a rated current of 125 amperes and a rated voltage of 690 volts, this load disconnect switch is ideal for indoor use. Its robust construction and IP10 protection class ensure safe operation in various applications. The switch features a 4-pole front drive, allowing for easy operation. The device is designed as a complete unit with direct drive and offers a high performance of up to 45 kilowatts. The contact configuration includes a normally closed contact, further optimizing the functionality of the device. The main switch is an essential element for the safe and efficient control of electrical systems.

  • Rated current of 125 amperes for high power requirements
  • 4-pole front drive for easy operation
  • IP10 protection class for indoor use
  • Power of up to 45 kilowatts
  • Robust construction for reliable operation.

Key specifications

Protection type (IP code)
IP10
Number of outlets
1 x
Nominal current
125 A
Nominal voltage
690 V
Item number
33686619

General information

Manufacturer
Siemens
Category
Mobile power distributors
Manufacturer no.
3KD0642-2LG20-3
Release date
17.5.2023

Colour

Colour
Grey
Exact colour description
Grey

Mobile power distributor features

Nominal current
125 A
Nominal voltage
690 V
Number of outlets
1 x
Area of use
Inside
mounting type
Recessed mounting
Number of poles
4 x
Contact Configuration
1 Number of contacts as NO contacts: 1 Number of contacts as NC contacts: 1 Number of switches: 1
Actuator Type
Short twist grip
Power
45000 W
input voltage
400 V
output voltage
400 V
Protection type (IP code)
IP10

Origin

Country of origin
Germany

Sustainability

Manufacturer commitment
RE100SBTi

Voluntary climate contribution

Manufacturer compensation
According to RE100, the manufacturer Siemens fully compensates for its energy consumption, leading to a reduction in emissions.
CO₂-Emission
Climate contribution

Scope of delivery

Items per sales unit
1 pcs.
Scope of delivery
4-pole front-wheel drive, centre complete unit 3KD06422LG203Frame size 02Load-break switch 125A

Legal Notice

Product Safety

14-day cancellation right
30-day right of return
24 Months statutory warranty
Report concern

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Mobile power distributors» category have a defect within the first 24 months?

Source: Galaxus
  • Siemens
    Not enough data
  • 1.Eaton
    0 %
  • 2.MeanWell
    0,1 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • Siemens
    Not enough data
  • Eaton
    Not enough data
  • MeanWell
    Not enough data

Unfortunately, we don't have enough data for this category yet.

Return rate

How often is a product of this brand in the «Mobile power distributors» category returned?

Source: Galaxus
  • Siemens
    Not enough data
  • 1.MeanWell
    4,9 %
  • 2.Eaton
    9,6 %
Source: Galaxus