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Siemens SIRIUS 3RT1026-3BB40 Contactor - 25A, 24V DC

Siemens SIRIUS 3-pole power contactor with 24V DC coil.

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ManufacturerSiemens

Part number3RT1026-3BB40

Type Power Contactor

AC-3 Rating 25A

Power Rating 11 kW @ 400V

Poles 3

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AC-3 rated 25A 11 kW power at 400V 24V DC coil 3-pole configuration Size S0 frame Spring-type terminals

Product description

The Siemens 3RT1026-3BB40 is a 3-pole power contactor from the SIRIUS series, designed for reliable motor control with a 24V DC coil. It features an AC-3 rating of 25A and can handle up to 11 kW at 400V. This model utilizes spring-type terminals for quick and secure connections and is housed in a compact S0 frame size.

This contactor is ideal for applications requiring DC control voltage, commonly found in industrial automation, control panels, and machinery. The spring terminals offer ease of installation and maintenance.

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Technical specifications

Type	Power Contactor
AC-3 Rating	25A
Power Rating	11 kW @ 400V
Poles	3
Coil Voltage	24V DC
Frame Size	S0
Terminal Type	Spring-type Terminal

Common applications

Motor Control

Industrial Automation

Control Panels

DC Control Circuits

Pump Control

Compatible systems

Compatible with Siemens overload relays and other SIRIUS 3RT accessories.

Also known as

Siemens SIRIUS 3RT1026-3BB40 3RT10263BB40 Siemens 24V DC Spring Terminal Contactor

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RT2026-2BB40.

Technical note

Expert tip

Ensure the spring terminals are properly engaged for a secure connection; periodic inspection may be recommended in high-vibration environments.

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Frequently asked questions

What are the advantages of using spring-type terminals on the Siemens 3RT1026-3BB40?

The spring-type terminals on the Siemens 3RT1026-3BB40 offer a tool-less connection, allowing for faster installation and easier maintenance compared to screw terminals, which is beneficial in busy industrial environments.