Siemens Reversing contactor assembly, 4kW, 9A, 24VDC Part number 3RA2316-8XB30-1BB4

Product Overview

The Siemens 3RA2316-8XB30-1BB4 is a SIRIUS 3RA23 reversing contactor assembly (size S00) featuring mechanically and electrically interlocked contactors. It is rated for 9 A operational current and up to 4 kW motor power at 400 V (AC-3/AC-3e duty). Operated by a 24 V DC control coil, this compact assembly ensures safe and reliable direction reversal of motors in industrial control systems.

Key Features

• Reversing contactor assembly from the Siemens SIRIUS 3RA23 series
• Compact size S00 for efficient use of control panel space
• Rated operational current (AC-3/AC-3e): 9 A at 400 V
• Rated motor power: 4 kW at 400 V
• Control supply voltage: 24 V DC
• Includes both mechanical and electrical interlocks for safe reversing function
• Screw-type terminals for main and auxiliary circuits
• High mechanical and electrical endurance ensuring long operational life
• Compact modular design simplifies wiring and assembly

Technical Specifications

• Product Series: SIRIUS 3RA23
• Article Number: 3RA2316-8XB30-1BB4
• Device Type: Reversing contactor assembly
• Size: S00
• Rated Operational Current (AC-3): 9 A at 400 V
• Rated Motor Power (AC-3): 4 kW at 400 V
• Control Coil Voltage: 24 V DC
• Main Contacts: 3 NO
• Auxiliary Contacts: 1 NO + 1 NC (typical)
• Mounting: DIN-rail or panel mounting
• Terminal Type: Screw-type terminals
• Protection Rating (front): IP20
• Operating Temperature: −25 °C to +60 °C

Compliance & Certifications

• Designed and manufactured by Siemens under the SIRIUS motor-control and protection portfolio
• Complies with IEC/EN 60947-4-1 standards for industrial contactors and motor starters
• Tested for mechanical and electrical interlock reliability and operational safety

Applications

Perfect for applications requiring dependable motor reversing such as conveyors, pumps, fans, and automation systems. Commonly used in industrial control panels, machinery, and production systems where quick installation, compact design, and safe reversing operation are essential.