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Siemens 3RT2028-2AC20 38A AC Power Contactor

Siemens 3RT2028-2AC20 3-Pole Power Contactor

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ManufacturerSiemens

Part number3RT2028-2AC20

Type Power Contactor

AC-3e/AC-3 Rating 38 A

Power Rating 18.5 kW / 400 V

Poles 3

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24V AC coil Spring-loaded terminals 38A AC-3e/AC-3 rating 1 NO + 1 NC auxiliary contacts Size S0 Siemens quality

Product description

The Siemens 3RT2028-2AC20 is a 3-pole power contactor designed for AC-3e/AC-3 applications, rated at 38A and 18.5 kW at 400V. This model operates on a 24V AC coil and features spring-loaded terminals for secure and reliable connections. It includes 1 normally open (NO) and 1 normally closed (NC) auxiliary contact.

This contactor is suitable for various industrial control applications, particularly where a 24V AC control voltage is used. The spring-loaded terminals offer advantages in environments with vibration, ensuring consistent electrical contact. It's commonly used in motor control circuits, automation systems, and power distribution panels.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 3RT2028-2AC20. We provide reliable components and expert service to keep your operations running efficiently and cost-effectively.

Technical specifications

Type	Power Contactor
AC-3e/AC-3 Rating	38 A
Power Rating	18.5 kW / 400 V
Poles	3
Coil Voltage	24 V AC
Frequency	50/60 Hz
Auxiliary Contacts	1 NO + 1 NC
Terminals	Spring-loaded
Size	S0

Common applications

Motor control

Industrial automation

Control panels

Power switching

Machine tools

Automation systems

Compatible systems

Siemens Sirius 3RT Series Control systems requiring 24V AC coil voltage and spring-loaded terminal connections

Also known as

Siemens 3RT2028 AC Contactor 3RT2028 Contactor 24V AC Siemens S0 Spring Terminal

Replaces / compatible with

Direct replacement for Siemens 3RT2028 models with 24V AC coils and spring-loaded terminals. Verify exact specifications for compatibility.

Technical note

Expert tip

The spring-loaded terminals offer reduced risk of loosening due to vibration compared to traditional screw terminals, making them ideal for mobile or high-vibration applications.

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Frequently asked questions

What type of terminals does the Siemens 3RT2028-2AC20 use?

The Siemens 3RT2028-2AC20 utilizes spring-loaded terminals. These provide a secure connection, especially in environments prone to vibration, and can simplify wiring.