Siemens Monitoring relay on. S00 24V screw

Delivered between 4.2.2026 and 19.2.2026
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Product details

FLC motor power = 1.6 → 16 A
Rated contact current = 16 A
Contact configuration = 1-pole
Range = Sirius Innovation
Mounting type = Direct contactor
Supply voltage = 24 Vac/dc
Series = 3RR
Contact configuration = Normally open/normally closed
Number of auxiliary contacts = 1
Power = 2.5 W
Reset type = Automatic, manual
Width = 45 mm
Operating temperature range = -25 → +60 °C

Monitoring relay - Series 3RR. The SIRIUS 3RR21 and 3RR22 current monitoring relays are suitable for load monitoring of motors or other loads. They monitor the RMS value of alternating currents in 2 or 3 phases for voltage overloads or undercuts of the set threshold values. Monitoring relays for mounting on contactor 3RT2. For contactors of size S00 or S0. Adjustable either analog or digital. For alarm and warning monitoring for phase faults with excessive or insufficient current, phase sequence faults with interrupted conductors, as well as warnings and alarms for reverse current. Screw connection/spring terminal. Output contact as a 1-pole changeover.

Key specifications

Output current type
AC/DC
Relay type
Monitoring relay
Electric current output
1 A
Output voltage
24 V
input voltage
24 V
Item number
9724484

General information

Manufacturer
Siemens
Category
Relays
Manufacturer no.
3RR2141-1AA30
Release date
24.9.2018

Relay properties

Relay type
Monitoring relay
input voltage
24 V
Output voltage
24 V
Electric current output
1 A
Output current type
AC/DC
Manufacturer Type
3RR2141-1AA30

Smart home features

Smart Home
Not compatible

Origin

Country of origin
Czech Republic

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

Product dimensions

Length
80 mm
Width
80 mm
Height
79 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
  • 8.Hager
    0.7 %
  • 8.Schalk
    0.7 %
  • 10.Aqara
    1.2 %
  • 10.Siemens
    1.2 %
  • 12.Shelly
    1.3 %

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
  • 1.Siemens
    0 days
  • 2.Shelly
    2 days

Return rate

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

Source: Digitec Galaxus
  • 5.Eaton
    2 %
  • 6.Shelly
    2.2 %
  • 7.Siemens
    2.4 %
  • 8.Finder
    2.5 %
  • 8.Hager
    2.5 %
Source: Digitec Galaxus