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SIEMENS Overload Relay 17-22 A 3RU2126-4CB0 (3RU21264CB0)

SIEMENS Overload Relay 17-22 A 3RU2126-4CB0 (3RU21264CB0)
SIEMENS Overload Relay 17-22 A 3RU2126-4CB0 (3RU21264CB0)
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R2,603
+R9 Reward
Thermal overload relay with a current setting range of 17–22 A, tripping class 10, and 3-pole design for reliable motor protection.OverviewThe SIEMENS 3RU2126-4CB0 is a thermal overload relay from the SIRIUS series, size S0. It is designed for direct mounting to contactors such as the 3RT2.2 or for ... Read More
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Stock 3 Code 3569222 Brand SIEMENS Model 3RU21264CB0 Warranty 2 Years

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Estimated delivery Tuesday, October 6
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Thermal overload relay with a current setting range of 17–22 A, tripping class 10, and 3-pole design for reliable motor protection.

Overview

The SIEMENS 3RU2126-4CB0 is a thermal overload relay from the SIRIUS series, size S0. It is designed for direct mounting to contactors such as the 3RT2.2 or for stand-alone installation. The relay provides protection against overloads and phase failure, with manual/automatic reset and screw terminals.

What stands out

  • Current setting range: 17–22 A
  • Tripping class 10
  • 3-pole main circuit
  • 1 NO + 1 NC auxiliary contacts
  • Rated insulation voltage 690 V
  • Manual/automatic reset

Technical details

  • Type of overload release: Thermal
  • Current setting range: 17–22 A
  • Tripping class: CLASS 10
  • Size: S0
  • Number of poles: 3
  • Auxiliary contacts: 1 NO + 1 NC
  • Rated insulation voltage (Ui): 690 V
  • Rated impulse withstand voltage (Uimp): 6 kV
  • Mounting type: Direct mounting to contactor (e.g., 3RT2.2) or stand-alone installation
  • Reset function: Manual/Automatic
  • Connection type: Screw terminals
  • Degree of protection (main circuit): IP00
  • Degree of protection (terminals): IP20
  • Operating temperature range: -20 to +60 °C
  • Rated operational voltage (Ue): 690 V AC
  • Power loss (at Ie): 7.2 W
  • Standard: IEC 60947-4-1, IEC 60947-5-1

Our verdict

A robust thermal overload relay for motor protection in industrial applications, offering precise current adjustment and reliable tripping.

Specifications
AC input voltage
690 V AC
Brand
SIEMENS
Category
Overload Relay
DIN rail mounting
No
EAN
4011209780958
LED indicators
No
Maximum current
22 A
Model
3RU2126-4CB0
MPN
3RU21264CB0
Number of modules
1
Operating temperature (T-T)
-20 - 60 °C
Overheat protection
Yes
Overload protection
Yes
Power consumption (typical)
7.2 W
Product type
Overload Relay
Remotely operated
No
Weight
189 kg
Price history over the last 6 months
SIEMENS Overload Relay 17-22 A 3RU2126-4CB0 (3RU21264CB0)
Current
R2,603
Lowest
R2,577
Highest
R2,603
Change 24H
+R22   +1%
Week
—   
Month
—   

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