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Siemens 3RT2023-1BB44 3-Pole Contactor — 9A 24V DC Coil, 2 NO + 2 NC Aux

Siemens 3RT2023-1BB44 3-pole contactor with 24V DC coil, 2 NO + 2 NC aux.

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ManufacturerSiemens

Part number3RT2023-1BB44

Type Power Contactor

Manufacturer Siemens

Series 3RT20

Poles 3

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AC-3e/AC-3 rated 3-pole configuration 24V DC coil Enhanced auxiliary contacts (2 NO + 2 NC) Size S0 Removable auxiliary switch

Product description

The Siemens 3RT2023-1BB44 is a 3-pole power contactor for AC-3e/AC-3 applications, rated at 9A and 4kW at 400V. It features a 24V DC coil and is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. The auxiliary switch is removable, offering flexibility in configuration.

This contactor is suitable for a broad range of industrial control applications, including motor control, automation, and power switching. The higher number of auxiliary contacts (2 NO + 2 NC) allows for more complex control and signaling schemes in machinery and systems.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 3RT2023-1BB44 to ensure your industrial automation needs are met efficiently. We offer reliable surplus components, helping you maintain system uptime and manage costs effectively. Trust Stanlo for quality and dependable service.

Technical specifications

Type	Power Contactor
Manufacturer	Siemens
Series	3RT20
Poles	3
AC-3e/AC-3 Current	9 A
Power Rating	4 kW @ 400 V
Coil Voltage	24 V DC
Auxiliary Contacts	2 NO + 2 NC
Terminal Type	Screw Terminal
Size	S0
Auxiliary Switch	Removable
Standards	IEC 60947-4-1

Common applications

Motor control

Industrial automation

Control panels

Machine tools

HVAC systems

Pump control

Signaling systems

Compatible systems

Motor Control Systems Automation Panels Control Circuitry

Also known as

Siemens 3RT2023-1BB44 Contactor 3RT20231BB44 Siemens 24V DC 4 aux contactor SIRIUS 3RT20 Contactor

Replaces / compatible with

Replaces older Siemens contactors with 24V DC coils and a similar auxiliary contact configuration. The removable auxiliary switch allows for easy replacement or addition of contacts.

Technical note

Expert tip

The removable auxiliary switch block can be easily attached or detached from the front of the contactor without tools, allowing for quick configuration changes.

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Frequently asked questions

What is the advantage of the removable auxiliary switch on the Siemens 3RT2023-1BB44?

The removable auxiliary switch on the Siemens 3RT2023-1BB44 allows for easy field replacement or modification of auxiliary contacts. This increases flexibility for different control scenarios and simplifies maintenance, especially when needing to change from NO to NC or vice-versa.