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Siemens 3RK1304-5LS70-3AA3 ET 200pro Reversing Starter

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ManufacturerSiemens

Part number3RK1304-5LS70-3AA3

Motor Power 5.5 kW (400 V AC)

Current Range 1.5 A - 12 A

Protection Electronic Overload

Operation AC-3

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Electronic motor protection Reversing starter function AC-3 rating Adjustable current settings Integrated brake contact ET 200pro compatible

Product description

The Siemens ET 200pro 3RK1304-5LS70-3AA3 is an electronic reversing starter with full motor protection, including overload protection and thermistor monitoring. It is rated for AC-3, 5.5 kW at 400 V, with an adjustable current range of 1.5 A to 12 A.

This starter is ideal for controlling and protecting three-phase motors in demanding industrial applications, such as conveyor systems, pumps, and fans, where reliable reversing operation is required. It integrates with ET 200pro distributed I/O systems.

Stanlo Automation, a veteran-owned business specializing in surplus automation parts, offers the Siemens 3RK1304-5LS70-3AA3. We provide dependable solutions to keep your machinery running efficiently.

Technical specifications

Motor Power	5.5 kW (400 V AC)
Current Range	1.5 A - 12 A
Protection	Electronic Overload
Operation	AC-3
Connections	Han Q4/2 - Han Q8/0

Common applications

Motor control

Conveyor systems

Pump control

Fan control

Machine tools

Material handling

Compatible systems

Siemens ET 200pro I/O systems Various PLC control systems

Also known as

Siemens 3RK1304 Starter

Replaces / compatible with

Replaces traditional reversing contactor assemblies with integrated electronic overload protection.

Technical note

Expert tip

Ensure proper termination using Han connectors (Q4/2 and Q8/0) as specified for reliable electrical connections and safety.

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Frequently asked questions

What is the maximum motor power for the Siemens 3RK1304-5LS70-3AA3 starter?

The Siemens 3RK1304-5LS70-3AA3 is designed for motors up to 5.5 kW at 400 V AC (AC-3 rating). It provides electronic overload protection with an adjustable current range from 1.5 A to 12 A.