SIEMENS 3RA2335-8XB30-1NB3 Reversing Combination

SIEMENS 3RA2335-8XB30-1NB3 Reversing Combination

Product Description

The SIEMENS 3RA2335-8XB30-1NB3 is a high-quality SIRIUS reversing contactor assembly designed for reliable motor reversing applications in industrial automation systems. This factory-assembled reversing combination provides safe and efficient forward/reverse motor control with electrical and mechanical interlocking.

The unit is rated for AC-3 applications up to 41 A and 18.5 kW at 400 V, making it suitable for controlling three-phase motors in conveyors, pumps, ventilation systems, machine tools, and other industrial equipment.

Main Features

• Original SIEMENS SIRIUS reversing contactor assembly
• Model: 3RA2335-8XB30-1NB3
• AC-3 operational current: 41 A
• Motor rating: 18.5 kW at 400 V
• 3-pole design
• Control voltage: 20-33 V AC/DC, 50/60 Hz
• Integrated electrical and mechanical interlock
• Screw terminal connection
• Integrated auxiliary contacts: 2 x 1 NO
• Compact and factory pre-wired construction
• Reliable forward and reverse motor switching

Applications

The SIEMENS 3RA2335-8XB30-1NB3 reversing combination is commonly used in industrial motor control systems where safe direction reversal is required. Typical applications include:

• Conveyor systems
• Industrial pumps
• Hoists and lifting equipment
• Ventilation and fan systems
• Machine tools
• Production and automation lines
• Material handling systems

Technical Specifications

• Manufacturer: SIEMENS
• Series: SIRIUS 3RA23
• Part Number: 3RA2335-8XB30-1NB3
• Function: Reversing contactor assembly
• Rated operational current: 41 A
• Rated power at 400 V: 18.5 kW
• Voltage range: 20-33 V AC/DC
• Frequency: 50/60 Hz
• Connection type: Screw terminals
• Protection class: IP20
• Mounting type: DIN rail / panel mounting

Advantages

This reversing combination offers fast installation, compact dimensions, high operational reliability, and enhanced motor protection through integrated interlocking. The pre-assembled design reduces wiring time and minimizes installation errors in industrial control cabinets.