3RT2028-1AC20

Siemens 3RT2028-1AC20 standard AC contactor, Size S0, 3 poles, AC-3 rated current 38A, 18.5kW (400V), control voltage 24VAC 50/60Hz, with 1NO+1NC auxiliary contacts.

Share To

Siemens 3RT2028-1AC20 Standard AC Contactor, Size S0, 3-pole, 24VAC, 50/60Hz

Product Positioning

The Siemens 3RT2028-1AC20 standard AC contactor belongs to the SIRIUS 3RT2 series, Size S0, 3-pole design, AC-3 rated current 38A, power 18.5kW (400V), suitable for general motor direct starting and switching circuits. The Siemens 3RT2028-1AC20 controls at 24VAC 50/60Hz, has 1 NO + 1 NC auxiliary contacts, rated insulation voltage 690V, and a 24V low-voltage coil, a common control voltage selection for direct drive of PLC/relay outputs.

Core Product Advantages and Features

Size S0 contactor, AC-3 38A

The AC-3 has a rated current of 38A and a power of 18.5kW (400V), and is suitable for general motor direct starting circuits.

Control voltage 24VAC 50/60Hz

The coil drive voltage is 24VAC 50/60Hz, and it is equipped with 1NO+1NC auxiliary contacts for convenient circuit monitoring and feedback.

690V insulation, IP20 protection

Rated insulation voltage 690V, impulse withstand voltage 6kV, front IP20 protection rating.

Mechanical life of 10 million cycles

Mechanical life up to 10 million operations, 45×85×97 mm (width×height×depth), 35mm DIN rail for quick and easy installation.

project	Specification
Applicable series/Size	SIRIUS 3RT2 series, Size S0
AC-3 rated current	38 A
AC-3 rated power	18.5 kW (400V)
Extreme number	3 poles (3 sets of main contacts NO)
Control/coil voltage	24VAC 50/60Hz
Auxiliary contact configuration	1NO+1NC
Rated insulation voltage	690V (AC)
Rated impulse withstand voltage	6kV
Protection level	IP20 (front)
Mechanical life	10 million times (no load)
External dimensions	45×85×97 mm (width×height×depth)
weight	0.414 kg
Installation method	35mm DIN rail mounting/panel locking
Terminal type	Screw terminals
Certification	RoHS compliant

Recommend

3RT2028-1AG20

Siemens 3RT2028-1AG20 standard AC contactor, Size S0, 3 poles, AC-3 rated current 38A, 18.5kW (400V), control voltage 110VAC 50/60Hz, with 1NO+1NC auxiliary contacts.

3RT2027-2KF40

The Siemens SIRIUS 3RT2027-2KF40 contactor features a 110V DC coil (with built-in surge suppressor/varistor), 1NO+1NC auxiliary contacts, and spring-loaded terminals. It is rated for AC-3 at 32A/15kW and has an S0 chassis suitable for direct starting circuits of 400V three-phase motors.

3RT2027-2FB40

The Siemens SIRIUS 3RT2027-2FB40 contactor features a 24V DC coil (with a built-in diode suppression circuit), 1NO+1NC auxiliary contacts, and spring-loaded terminals. It is rated for AC-3 at 32A/15kW and has an S0 body suitable for direct starting circuits of 400V three-phase motors.