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.

Quantity discount

Siemens Auxiliary switch block 3RH1921-1EA20 2S

Price in EUR including VAT
Save EUR1,32
Delivered between Tue, 9.6. and Thu, 11.6.
2 items ordered
Free shipping starting at 30,–

Product details

The auxiliary switch block 3RH1921-1EA20 2S from Siemens is a reliable solution for expanding auxiliary contacts in control circuits. This auxiliary switch is specifically designed for use with the 3RT1 series contactors and offers two normally open contacts with screw terminals. Installation is tool-free, significantly simplifying the setup process. The auxiliary switch is available in various versions, including front-mounted or side-mounted models. With a high switching cycle count of up to 200,000, it is suitable for long-term use. The continuous screw and spring-loaded connections ensure a secure connection. The auxiliary switch block is part of the SIRIUS modular system, known for its efficiency and modernity.

  • Tool-free installation on 3RT1 contactors
  • Two normally open contacts for flexible applications
  • High switching cycle count of 200,000
  • Available in front and side mounting options.

Key specifications

Electric current output
6 A
Output current type
AC
Number of poles
2x

General information

Item number
30447746
Manufacturer
Siemens
Category
Relays
Manufacturer No.
3RH19211EA20
Release date
19.4.2021

Relay properties

Electric current output
6 A
Output current type
AC
Switching function
Normally open
Number of openers
0x
Number of closers
2x
Number of poles
2x
Number of switching cycles
200000x

Smart home features

Smart home
Not compatible

Origin

Country of origin
Czech RepublicRomania

Sustainability

Manufacturer commitment
RE100SBTi

Voluntary climate contribution

CO₂ emissions
29,26 kg
Climate contribution
EUR 0,70

Scope of delivery

Scope of delivery
1 pc.

Product dimensions

Width
10 mm
Height
80 mm

Legal Notice

Product Safety

14-day cancellation right
30-day right of return
24 Months statutory warranty
Legal concerns

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

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

Source: Galaxus
  • 9.Hager
    0,5 %
  • 9.Schalk
    0,5 %
  • 11.Siemens
    0,9 %
  • 12.Shelly
    1,1 %
  • 13.Aqara
    1,2 %

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
  • 1.Shelly
    2 days
  • ABB
    Not enough data
  • Aqara
    Not enough data
  • Eaton
    Not enough data

Return rate

How often is a product of this brand in the «Relays» category returned?

Source: Galaxus
  • 9.Eaton
    3,1 %
  • 10.Schneider Electric
    3,2 %
  • 11.Eltako
    3,5 %
  • 12.Siemens
    4 %
  • 13.ABB
    5,8 %
Source: Galaxus