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Siemens 3RT2028-1AG24 3-Pole Contactor — 38A 18.5kW

Siemens 3RT2028-1AG24 3-Pole Power Contactor

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ManufacturerSiemens

Part number3RT2028-1AG24

Type Power Contactor

AC-3e/AC-3 Rating 38A, 18.5kW @ 400V

Poles 3

Coil Voltage 110V AC

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38A current rating 18.5kW power handling 110V AC coil Supports 50/60 Hz Screw terminals 2 NO + 2 NC auxiliary contacts Removable auxiliary switch

Product description

The Siemens 3RT2028-1AG24 is a high-performance 3-pole power contactor designed for AC-3e/AC-3 applications, rated for 38A and 18.5kW at 400V. This size S0 contactor utilizes a 110V AC coil and supports both 50 Hz and 60 Hz frequencies. It features screw terminals for secure connections and comes with a removable auxiliary switch block providing 2 normally open (NO) and 2 normally closed (NC) contacts.

This contactor is ideal for demanding industrial applications such as motor control, pump systems, and conveyor belts where reliable switching and flexible auxiliary contact configurations are needed. The removable auxiliary switch allows for easy modification or replacement, enhancing its versatility.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3RT2028-1AG24. We are committed to providing quality components and exceptional service to help you minimize downtime and optimize your operations.

Technical specifications

Type	Power Contactor
AC-3e/AC-3 Rating	38A, 18.5kW @ 400V
Poles	3
Coil Voltage	110V AC
Frequency	50/60 Hz
Auxiliary Contacts	2 NO + 2 NC
Terminal Type	Screw
Size	S0
Features	Removable auxiliary switch

Common applications

Motor Control

Pump Control

Conveyor Systems

HVAC

Industrial Automation

Machine Tooling

Compatible systems

Compatible with Siemens overload relays, motor starters, and control systems within the SIRIUS 3RT2 product range.

Also known as

Siemens 3RT2028 Contactor SIRIUS 3RT2028 3RT2028-1A 38A Siemens Contactor

Replaces / compatible with

This contactor is a direct replacement for Siemens 3RT2028 models with 110V AC coils and similar auxiliary contact configurations. It is compatible with Siemens SIRIUS accessories.

Technical note

Expert tip

The removable auxiliary switch allows for flexible expansion of control and signaling circuits without requiring a larger frame size.

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Frequently asked questions

What is the auxiliary contact configuration and coil voltage of the Siemens 3RT2028-1AG24?

The Siemens 3RT2028-1AG24 power contactor features a 110V AC coil and a removable auxiliary switch block that provides 2 normally open (NO) and 2 normally closed (NC) contacts.