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Siemens 3RT2028-2BB40 38A Power Contactor – 24V DC Coil

Siemens 3RT2028-2BB40 3-pole power contactor, 38A, 24V DC coil.

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ManufacturerSiemens

Part number3RT2028-2BB40

Type Power Contactor

Poles 3

AC-3e/AC-3 Rating 38 A

Power Rating 18.5 kW at 400 V

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12-month warranty

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AC-3e/AC-3 rated 38A switching capacity 24V DC coil 1 NO + 1 NC auxiliary contacts Spring-loaded terminals Size S0

Product description

The Siemens 3RT2028-2BB40 is a 3-pole power contactor designed for AC-3e/AC-3 applications, rated for 38 A and 18.5 kW at 400 V. It features a 24 V DC coil, auxiliary contacts comprising 1 normally open (NO) and 1 normally closed (NC) set, and spring-loaded terminals for secure connections. This contactor is built to size S0 and is a reliable component for various industrial switching tasks.

This contactor is suitable for a wide range of applications, including motor control, lighting systems, and general power switching in industries such as manufacturing, building automation, and water treatment. Its robust design ensures dependable operation in demanding environments, making it a versatile solution for controlling electrical loads.

As a veteran-owned surplus parts distributor, Stanlo Automation offers this Siemens 3RT2028-2BB40 power contactor, providing a cost-effective solution for your automation needs. We ensure that you receive quality components backed by expert service, helping you keep your operations running smoothly without breaking the bank.

Technical specifications

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

Common applications

Motor control

Power switching

Industrial automation

Manufacturing

Building automation

HVAC

Pump control

Compatible systems

Siemens Sirius 3RT series Various motor starters Control panels

Also known as

Siemens 3RT2028 Contactor 3RT2028 Series Contactor Siemens 38A Contactor 24V DC Contactor

Replaces / compatible with

This contactor is a direct replacement for other Siemens 3RT2028 series contactors with similar specifications. Compatible with various Siemens control systems.

Technical note

Expert tip

The spring-loaded terminals on the 3RT2028-2BB40 ensure a reliable connection, especially in applications with vibration.

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Frequently asked questions

What are the key specifications of the Siemens 3RT2028-2BB40 power contactor?

The Siemens 3RT2028-2BB40 is a 3-pole power contactor rated for AC-3e/AC-3 applications at 38A and 18.5 kW (400V). It features a 24V DC coil, 1 NO + 1 NC auxiliary contacts, and spring-loaded terminals in a size S0 frame.