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Siemens 3RA2318-8XB30-1AP0 Reversing Contactor Assembly

Siemens 3RA2318-8XB30-1AP0 Reversing Contactor Assembly, 16A, 400V.

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ManufacturerSiemens

Part number3RA2318-8XB30-1AP0

Type Reversing Contactor Assembly

AC-3e/AC-3 Rating 16A, 7.5 kW / 400 V

Poles 3

Coil Voltage 230 V AC (typical, check part number for exact)

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Motor direction reversal Integrated interlocks (electrical/mechanical) 3-pole configuration 16A rating 7.5 kW @ 400V Screw terminals

Product description

The Siemens 3RA2318-8XB30-1AP0 is a reversing contactor assembly designed for AC-3e/AC-3 motor applications. It is rated for 16A and 7.5 kW at 400V AC, featuring 3 poles. This assembly incorporates electrical and mechanical interlocks for safe and reliable motor direction reversal and uses screw terminals for connections.

This component is essential for applications requiring the ability to change the direction of motor rotation, commonly found in material handling systems, elevators, hoists, and other industrial machinery. The integrated interlocks prevent dangerous simultaneous operation of the forward and reverse contactors.

Stanlo Automation, a veteran-owned surplus industrial parts distributor, offers the Siemens 3RA2318-8XB30-1AP0. We provide a dependable source for critical automation components, ensuring your machinery operates efficiently and safely.

Technical specifications

Type	Reversing Contactor Assembly
AC-3e/AC-3 Rating	16A, 7.5 kW / 400 V
Poles	3
Coil Voltage	230 V AC (typical, check part number for exact)
Interlocks	Electrical and Mechanical
Terminals	Screw

Common applications

Motor reversal applications

Industrial automation

Machine control

Hoists and elevators

Conveyor systems

Compatible systems

Designed for integration with Siemens SIRIUS control systems and other compatible industrial control components.

Also known as

SIRIUS 3RA2318-8XB30-1AP0 Siemens Motor Contactor

Replaces / compatible with

This assembly simplifies wiring and ensures safety by integrating forward and reverse contactors with mechanical and electrical interlocks.

Technical note

Expert tip

Confirm the precise coil voltage (e.g., 230V AC) for the 3RA2318-8XB30-1AP0 to ensure compatibility with your control system.

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Frequently asked questions

What is the purpose of the interlocks in the Siemens 3RA2318-8XB30-1AP0 reversing contactor assembly?

The electrical and mechanical interlocks in the Siemens 3RA2318-8XB30-1AP0 assembly prevent both the forward and reverse contactors from being energized simultaneously, which is critical for preventing damage to the motor and ensuring operational safety.