3RT2028-1BB40

Siemens 3RT2028-1BB40 Standard Contactor, Size S0, 3-pole, DC 24V
Siemens 3RT2028-1BB40 Standard Contactor, Size S0, 3-pole, DC 24V

Siemens 3RT2028-1BB40 standard contactor, 3-pole, AC-3 rated current 38A, 18.5kW (400V), control voltage DC 24V, with 1NO+1NC auxiliary contacts, screw terminals, rated insulation voltage 690V.

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Siemens 3RT2028-1BB40 Standard Contactor, Size S0, 3-pole, DC 24V
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The Siemens 3RT2028-1BB40 is a Size S0, 3-pole standard contactor from the SIRIUS 3RT20 series. It has an AC-3 rated current of 38A and a rated current of 18.5kW (400V), suitable for direct starting and circuit switching of general motors. This model features a common 24VDC coil screw terminal combination, suitable for direct driving of PLC outputs or general DC control circuits. It weighs only 0.604kg, simplifying installation and configuration.

Core Product Advantages and Features
Size S0, 3-pole main circuit
AC-3 rated current 38A, 18.5kW (400V), suitable for direct start and stop of general motors.
DC 24V coil
Suitable for direct drive of PLC output or general 24VDC control circuit, with simple wiring.
Screw terminals
The wiring is reliable and conforms to the existing construction practices of most distribution boxes.
1NO+1NC auxiliary contact
The feedback of the main contact's action status facilitates the integration of interlocking protection and monitoring.
project Specification
Applicable series/Size SIRIUS 3RT20 series, Size S0
Extreme number 3 poles
Rated current (AC-3) 38A
Rated power (400V) 18.5kW
Control/coil voltage DC 24V
Auxiliary contact configuration 1NO+1NC
Terminal type screw type
Rated insulation voltage 690V
Applicable temperature range -25°C ~ 60°C
Installation method Rail quick-release/panel mounting
weight 0.604kg

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