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Siemens 3RT2015-2BB42 7A 3-Pole Contactor, 24V DC, 1 NC

Siemens 3RT2015-2BB42 7A 3-pole contactor, 24V DC, 1 NC.

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ManufacturerSiemens

Part number3RT2015-2BB42

Type Power Contactor

Series 3RT20

AC-3e/AC-3 Rating 7A, 3kW/400V

Poles 3

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AC-3e/AC-3 rated 1 NC auxiliary contact Spring-loaded terminals Size S00 24V DC coil Reliable switching

Product description

The Siemens 3RT2015-2BB42 is a 3-pole power contactor for AC-3e/AC-3 applications, rated at 7A and 3kW at 400V. It operates with a 24V DC coil and includes one normally closed (NC) auxiliary contact. This contactor is housed in a size S00 frame and features spring-loaded terminals for quick and reliable connections.

This contactor is suitable for general motor control, power switching, and automation applications in industries such as manufacturing, building automation, and water treatment. The inclusion of an NC auxiliary contact is often used for safety interlocks or fault signaling.

Stanlo Automation, a veteran-owned distributor of industrial automation surplus, offers the Siemens 3RT2015-2BB42. We are committed to providing high-quality components and reliable service to ensure your automation needs are met efficiently.

Technical specifications

Type	Power Contactor
Series	3RT20
AC-3e/AC-3 Rating	7A, 3kW/400V
Poles	3
Coil Voltage	24V DC
Auxiliary Contacts	1 NC
Terminals	Spring-loaded
Size	S00

Common applications

Motor control

Power switching

Automation systems

Manufacturing

Building automation

Water treatment

Industrial machinery

Compatible systems

Control panels Motor starters Automation systems Industrial machinery PLC interfaces

Also known as

Siemens 3RT2015-2BB42 Siemens 24V DC 7A contactor 3RT20 S00 contactor

Replaces / compatible with

This contactor is a direct replacement for Siemens S00-sized contactors with a 24V DC coil, offering a single NC auxiliary contact and spring terminals for easy installation.

Technical note

Expert tip

The spring-loaded terminals on the 3RT2015-2BB42 ensure a secure connection even in high-vibration environments, reducing the risk of loose wiring and connection failures.

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Frequently asked questions

What is the role of the NC auxiliary contact on the Siemens 3RT2015-2BB42?

The normally closed (NC) auxiliary contact on the Siemens 3RT2015-2BB42 is typically used in control circuits for safety interlocks, signaling, or creating logic for shutdown sequences. When the main contactor is energized, this NC contact opens.