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Siemens 3RA2327-8XB30-1BB4 Reversing Contactor Assembly - 32A, 15kW

Siemens 3RA2327-8XB30-1BB4 Reversing Contactor Assembly

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ManufacturerSiemens

Part number3RA2327-8XB30-1BB4

AC-3e/AC-3 rating 32 A

Power 15 kW @ 400 V

Poles 3

Coil Voltage 24 V DC

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CAGE: 9NK75

Reversing Contactor Assembly AC-3e/AC-3 Rated 32A Current Rating 24V DC Coil Screw Terminals Electrical and Mechanical Interlock 2 NO Auxiliary Contacts

Product description

The Siemens 3RA2327-8XB30-1BB4 is a 3-pole reversing contactor assembly designed for AC-3e/AC-3 motor applications. It features a 24V DC coil, a robust 32A current rating, and a 15 kW power capacity at 400V. This assembly incorporates electrical and mechanical interlocking for safe reversing operations and uses screw terminals for secure connections. It is supplied with 2 x 1 normally open auxiliary contacts.

This heavy-duty reversing contactor assembly is ideal for controlling larger motors in industrial environments, such as in mining operations, heavy manufacturing, and large-scale HVAC systems that require frequent directional changes.

Stanlo Automation, a veteran-owned business, offers a comprehensive selection of surplus industrial automation components. Secure your Siemens 3RA2327-8XB30-1BB4 from us and benefit from our commitment to quality, affordability, and swift delivery to keep your essential machinery running.

Technical specifications

AC-3e/AC-3 rating	32 A
Power	15 kW @ 400 V
Poles	3
Coil Voltage	24 V DC
Terminals	Screw
Interlocking	Electrical & Mechanical
Auxiliary Contacts	2 x NO

Common applications

Heavy Industrial Motor Control

Mining Equipment

Manufacturing Automation

Large HVAC Systems

Pump Control

Material Handling

Compatible systems

Compatible with Siemens Sirius motor control systems

Also known as

3RA23278XB301BB4 Siemens Sirius 32A Reversing Starter

Replaces / compatible with

This contactor assembly is part of the Siemens Sirius 3RA23 series and is designed for direct replacement or upgrade within compatible systems.

Technical note

Expert tip

The 24V DC coil requires a stable DC power supply. Ensure the supply voltage is within tolerance to prevent premature coil failure or unreliable operation.

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Frequently asked questions

What is the purpose of the electrical and mechanical interlock in the Siemens 3RA2327-8XB30-1BB4 reversing contactor assembly?

The electrical and mechanical interlock in the 3RA2327-8XB30-1BB4 assembly is critical for safe motor reversing. It prevents both contactors from being energized simultaneously, which would cause a short circuit and damage the motor and system.