Siemens MSS Expansion Module, 4 F-DO

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Delivered between Tue, 19.5. and Fri, 22.5.
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Product details

The MSS expansion module from Siemens, model 3RK3251-1AA10, is a highly advanced installation relay specifically designed for modular safety systems. With an output voltage of 24 volts and the capability to control up to four F-DO outputs, this module provides a reliable solution for various automation applications. It is suitable for use in safety-critical environments and meets the requirements of IEC 61508 up to SIL3 as well as Performance Level E according to ISO 13849-1. The module is easy to install and parameterize, making it a flexible choice for professionals in the field of automation technology. Its compact design, with a width of 45 mm, allows for space-saving integration into existing systems. The product is supplied without connection cables and is not suitable for smart home applications.

  • Modular design for flexible applications
  • Compliance with safety standards up to SIL3 (IEC 61508)
  • Parameterizable via MSS for individual adjustments
  • Compact design with 45 mm width for easy integration.

Key specifications

Relay type
Installation relay
input voltage
24 V
Output voltage
24 V
Output current type
DC
Number of poles
4x

General information

Item number
9724930
Manufacturer
Siemens
Category
Relays
Manufacturer No.
3RK3251-1AA10
Release date
24.9.2018

Relay properties

Relay type
Installation relay
input voltage
24 V
Output voltage
24 V
Output current type
DC
Number of closers
4x
Number of poles
4x

Smart home features

Smart home
Not compatible

Origin

Country of origin
Germany

Sustainability

Manufacturer commitment
RE100, SBTi

Voluntary climate contribution

CO₂ emissions
29.26 kg
Climate contribution
CHF 0.70

Scope of delivery

Scope of delivery
1x extension module 3RK3251-1AA10

Product dimensions

Length
130 mm
Width
130 mm
Height
50 mm

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

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

Source: Digitec Galaxus
  • 9.Hager
    0.6 %
  • 9.Schalk
    0.6 %
  • 11.Siemens
    0.9 %
  • 12.Shelly
    1.1 %
  • 13.Aqara
    1.2 %

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: Digitec Galaxus
  • Siemens
    Not enough data
  • 1.Shelly
    1 day
  • 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: Digitec Galaxus
  • 8.Schneider Electric
    3 %
  • 10.Eaton
    3.5 %
  • 11.Eltako
    3.6 %
  • 12.Siemens
    3.9 %
  • 13.ABB
    5.8 %
Source: Digitec Galaxus