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Siemens SIRIUS 3RA6400-1BB42 IO-Link Direct Starter

Siemens 3RA6400-1BB42 SIRIUS Compact Direct-On-Line Starter

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ManufacturerSiemens

Part number3RA6400-1BB42

Voltage 690V

Control Voltage 24V DC

Current Range 0.32-1.25A

IP Rating IP20

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Compact design Direct-on-line starter IO-Link communication Integrated motor protection Screw terminal connections

Product description

The Siemens 3RA6400-1BB42 is a SIRIUS compact starter designed for direct-on-line (DOL) motor starting with IO-Link communication. This phase-out type operates at 690V with a 24V DC coil and has an adjustable current range of 0.32 to 1.25A, featuring an IP20 protection rating. Both the main and control circuits use screw terminals.

This starter is ideal for direct starting of three-phase motors and integration with IO-Link systems for advanced diagnostics and control. It's part of the SIRIUS 3RA64 series, known for its compact design and integrated functions. Please note this is a phase-out type, and for new designs, alternatives like 3RK1308 or 3RA8 are recommended, often requiring a controller like the ET 200SP.

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Technical specifications

Voltage	690V
Control Voltage	24V DC
Current Range	0.32-1.25A
IP Rating	IP20
Main Circuit Connection	Screw terminal
Control Circuit Connection	Screw terminal
Communication	IO-Link

Common applications

Motor control

Industrial automation

Machine control

IO-Link systems

Small motor starting

Compatible systems

Compatible with IO-Link masters and controllers such as Siemens ET 200SP.

Also known as

Siemens SIRIUS 3RA6400-1BB42 3RA64001BB42 Siemens IO-Link Starter

Replaces / compatible with

This part is a phase-out type. Alternatives for new designs include Siemens 3RK1308 or 3RA8, often requiring a controller like the ET 200SP.

Technical note

Expert tip

This is a phase-out product; consider alternative Siemens series for new installations.

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Frequently asked questions

What are the connection types for the Siemens 3RA6400-1BB42 Compact Starter?

The Siemens 3RA6400-1BB42 features screw terminals for both the main circuit and the control circuit connections, providing a secure and reliable connection.