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Siemens

Main contactor Siemens SIRIUS 3RT20281BB40

2 year warranty Money back guaranty Free Shipping
Item number: 101322
UPC / EAN: 662643918045
  • Power contactor
  • Size S0
  • AC-3
  • 25 HP/480 V
  • Auxiliary contact: 1 x NO+ 1 x NC
  • Control voltage: 24 V DC
  • Screw connection
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MSRP: $485.45
$231.00
plus sales tax plus shipping
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ul csa ce vde
Corresponding accessories
Surge suppressor Siemens SIRIUS 3RT29261ER00
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Corresponding accessory groups
Auxiliary switch block Siemens SIRIUS 3RH29111FA22
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Auxiliary switch block Siemens SIRIUS 3RH29111HA01
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SIRIUS Auxiliary contacts close
Overload relay Siemens SIRIUS 3RU21261CB0
Overload relay Siemens SIRIUS 3RU21261CB0
Overload relay for motor protection, 1.8-2.5 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset, Internal earth-fault detection
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Overload relay Siemens SIRIUS 3RU21261DB0
Overload relay Siemens SIRIUS 3RU21261DB0
Overload relay for motor protection, 2.2-3.2 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101346
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Overload relay Siemens SIRIUS 3RU21261EB0
Overload relay Siemens SIRIUS 3RU21261EB0
Overload relay for motor protection, 2.8-4 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101347
MSRP: $99.18
$76.00
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21261FB0
Overload relay Siemens SIRIUS 3RU21261FB0
Overload relay for motor protection, 3.5-5 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101348
MSRP: $99.18
$76.00
plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21261GB0
Overload relay Siemens SIRIUS 3RU21261GB0
Overload relay for motor protection, 4.5-6.3 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
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Overload relay Siemens SIRIUS 3RU21261HB0
Overload relay Siemens SIRIUS 3RU21261HB0
Overload relay for motor protection, 5.5-8 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101350
MSRP: $99.18
$76.00
plus sales tax plus shipping
in stock
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Overload relay Siemens SIRIUS 3RU21261JB0
Overload relay Siemens SIRIUS 3RU21261JB0
Overload relay for motor protection, 7-10 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
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Overload relay Siemens SIRIUS 3RU21261KB0
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Overload relay Siemens SIRIUS 3RU21264AB0
Overload relay Siemens SIRIUS 3RU21264AB0
Overload relay for motor protection, 11-16 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
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plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21264BB0
Overload relay Siemens SIRIUS 3RU21264BB0
Overload relay for motor protection, 14-20 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101354
MSRP: $99.18
$76.00
plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21264CB0
Overload relay Siemens SIRIUS 3RU21264CB0
Overload relay for motor protection, 17-22 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
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MSRP: $99.18
$76.00
plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21264DB0
Overload relay Siemens SIRIUS 3RU21264DB0
Overload relay for motor protection, 20-25 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
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Overload relay Siemens SIRIUS 3RU21264EB0
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Overload relay for motor protection, 27-32 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
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Overload relay Siemens SIRIUS 3RU21264FB0
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Overload relay for motor protection, 34-40 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
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plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21264NB0
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plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RU21264PB0
Overload relay Siemens SIRIUS 3RU21264PB0
Overload relay for motor protection, 30-36 A, Size S0, CLASS 10, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset
Item number: 101490
MSRP: $152.70
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plus sales tax plus shipping
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SIRIUS S0 Thermal Overloads close
Overload relay Siemens SIRIUS 3RB31234NB0
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Overload relay for motor protection, 0.32-1.25 A, Size S0, CLASS 5-30, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset, Internal earth-fault detection
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plus sales tax plus shipping
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Overload relay Siemens SIRIUS 3RB31234PB0
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Overload relay Siemens SIRIUS 3RB31234SB0
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Overload relay Siemens SIRIUS 3RB31234VB0
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Overload relay for motor protection, 10-40 A, Size S0, CLASS 5-30, Screw connection, Auxiliary contacts 1 x NC/NO, Manual/automatic reset, Internal earth-fault detection
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SIRIUS S0 Electronic Overloads close
Technical details
General data

Main contactor
1 x NO+1 x NC
S0

Electrical data

25 HP
690 V
24 V DC
6 kV

Mechanical data

750 1/h
45 mm
85 mm
107 mm
Screw terminals
Screw terminals

Ambient conditions

-25 °C
50 °C
IP20

Further information

UL, CSA, CE, EAC, CCC

Product description
Main contactor Siemens SIRIUS 3RT20281BB40
The compact power contactor 3RT2028-1BB40 from Siemens is offered for the performance range up to 25 HP at AC-3/480 V. The SIRIUS power contactor 3RT2028-1BB40 from Siemens uses a control supply voltage of 24 V DC and features one NC and one NO contact as auxiliary contacts as well as a practical screw-type connection. In size S0, the power contactor 3RT2028-1BB40 is suitable for all load feeders with the circuit breakers 3RV2021 and 3RV2321. The power contactor 3RT2028-1BB40 is used in automation and control technology, particularly to control motors and switch on electrical heating systems.
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