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Siemens 3RT2028-1AL24 3-Pole Contactor — 38A 18.5kW

Siemens 3RT2028-1AL24 3-Pole Power Contactor

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ManufacturerSiemens

Part number3RT2028-1AL24

Type Power Contactor

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

Poles 3

Coil Voltage 230V AC

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38A current rating 18.5kW power handling 230V AC coil Supports 50/60 Hz Screw terminals 2 NO + 2 NC auxiliary contacts Removable auxiliary switch

Product description

The Siemens 3RT2028-1AL24 is a 3-pole power contactor engineered for AC-3e/AC-3 applications, rated for 38A and 18.5kW at 400V. This size S0 contactor operates with a 230V AC coil, supporting both 50 Hz and 60 Hz frequencies. It features standard screw terminals and includes a removable auxiliary switch block that offers 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts for advanced control configurations.

This contactor is suitable for a broad range of industrial uses, including motor control, power switching in control panels, and automation systems where more complex signaling or interlocking is required. The presence of four auxiliary contacts enhances its versatility for intricate control logic.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, carries the Siemens 3RT2028-1AL24. We offer competitive pricing and dependable service to ensure you receive the components needed for your operations with minimal delay.

Technical specifications

Type	Power Contactor
AC-3e/AC-3 Rating	38A, 18.5kW @ 400V
Poles	3
Coil Voltage	230V AC
Frequency	50/60 Hz
Auxiliary Contacts	2 NO + 2 NC
Terminal Type	Screw
Size	S0
Features	Removable auxiliary switch

Common applications

Motor Control

Control Panels

Industrial Automation

HVAC

Pump Systems

Machine Tooling

Compatible systems

Fully compatible with Siemens overload relays and motor starter accessories within the SIRIUS 3RT2 range, and integrates with standard control systems.

Also known as

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

Replaces / compatible with

This contactor is a suitable replacement for Siemens 3RT2028 models with 230V AC coils and 2 NO + 2 NC auxiliary contacts. It is compatible with Siemens SIRIUS accessories.

Technical note

Expert tip

The removable auxiliary switch allows for easy reconfiguration or replacement, simplifying maintenance and system upgrades.

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Frequently asked questions

What is the auxiliary contact configuration of the Siemens 3RT2028-1AL24 and does it have a removable switch?

Yes, the Siemens 3RT2028-1AL24 features a removable auxiliary switch block providing 2 normally open (NO) and 2 normally closed (NC) contacts. It operates with a 230V AC coil.