Siemens 1-phase solid state relay 3RF21 1 pc. 3RF2120-1AA45 Load current 20 A

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Product details

Siemens Digital Industrial Semiconductor Relay 3RF2120-1AA45

Manufacturer: Siemens Digital Industrial
Designation: Semiconductor Relay 22.5 mm, 20 A
Type: 3RF2120-1AA45
Rated Control Supply Voltage Us at DC: 4..30 V
Voltage Type for Actuation: DC
Operating Voltage: 48 V
Rated Operational Current Ie at AC-1: 20 A
Rated Operational Current Ie at AC-51: 20 A
Number of Phases: 1
Suitable for Rail Mounting: Yes

Further Details:
Semiconductor relay, single-phase 3RF2, width 22.5 mm, 20 A, 48-600 V / DC 4-30 V, screw connection, blocking voltage 1200 V. SIRIUS 3RF21 semiconductor relay for switching resistive/inductive loads, e.g., for heaters or valves in a filling system. The devices switch wear-free and silently, making them ideal for noise-sensitive areas (offices, hospitals). They are also extremely reliable at high switching frequencies. The compact design saves space on the cooling surface. Additionally, the semiconductor relays can be easily expanded for various applications by simply clicking on the standardized function modules 3RF29. The devices are globally approved (e.g., IEC and UL/CSA). The semiconductor relays are available as single-phase devices in two widths or as three-phase devices. They are offered for various power ratings and rated operational voltages. Designed for AC or DC actuation, they come with screw, spring-loaded, or ring terminal connections. Accessories include not only the function modules 3RF29 but also control plugs and terminal covers. Simple, efficient, always up-to-date - the SIRIUS system modular concept.
EAN: 4011209652583.

Key specifications

input voltage
48 V
Scope of delivery
1-phase solid state relay 3RF21 1 pc. 3RF2120-1AA45 Load current 20 A
Output voltage
600 V
Output current type
AC
Electric current output
20 A
Relay type
Power contactor
Item number
17948692

General information

Manufacturer
Siemens
Category
Relays
Manufacturer no.
3RF2120-1AA45
Release date
17.12.2021
External links

Relay properties

Relay type
Power contactor
input voltage
48 V
Output voltage
600 V
Electric current output
20 A
Output current type
AC
Resistor
20000 Ω (ohm)
Manufacturer Type
3RF2120-1AA45

Smart home features

Smart Home
Compatible

Origin

Country of origin
China

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

Scope of delivery
1-phase solid state relay 3RF21 1 pc. 3RF2120-1AA45 Load current 20 A

Product dimensions

Length
105 mm
Width
50 mm
Height
45 mm

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

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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
  • 3.Eltako
    0.2 %
  • 5.Eaton
    0.3 %
  • 5.Siemens
    0.3 %
  • 7.Hager
    0.8 %
  • 8.Schalk
    0.9 %

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.Hager
    0 days
  • 2.Shelly
    1 day
  • ABB
    Not enough data
  • Aqara
    Not enough data

Return rate

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

Source: Digitec Galaxus
  • 6.Metz Connect
    2.3 %
  • 7.Eaton
    2.6 %
  • 8.Siemens
    2.8 %
  • 9.Hager
    2.9 %
  • 10.Eltako
    3.2 %
Source: Digitec Galaxus