Allen Bradley 505ADD Voltage Reversing Controller

Description:

The Allen-Bradley 505ADD is a Bulletin 505 full-voltage reversing controller designed for across-the-line starting and reversing of three-phase AC motors in industrial applications. The controller incorporates mechanically and electrically interlocked contactors along with overload relays to provide safe forward and reverse motor operation. It is commonly installed in conveyors, pumps, hoists, machine tools, and manufacturing equipment where reliable motor reversing is required.

Applications:

The Allen-Bradley 505ADD is designed to control the direction of rotation of three-phase motors by reversing the phase sequence applied to the motor. It is commonly used in conveyors, cranes, hoists, machine tools, mixers, and industrial automation systems where forward and reverse operation is necessary. The controller provides across-the-line starting with integrated overload protection for safe and reliable motor control.

Technical Specifications:

• Manufacturer: Allen-Bradley / Rockwell Automation
• Manufacturer Part Number (MPN): 505ADD
• Product Series: Bulletin 505
• Product Type: Full Voltage Reversing Controller / Motor Starter
• Control Type: Full Voltage Across-the-Line
• Motor Type: Three-Phase AC Motors
• Function: Forward and Reverse Motor Control
• Reversing Method: Phase Sequence Reversal
• Interlocking: Mechanical and Electrical Interlocks
• Overload Protection: Includes Overload Relays
• Enclosure Type: Open Style
• Mounting Type: Panel Mount
• Frequency: 50/60 Hz
• Application: Motor starting and reversing
• Compatible Equipment: Conveyors, pumps, hoists, machine tools, and industrial machinery
• Operating Environment: Industrial indoor applications
• Status: Legacy / Replacement component
• Series: Various revisions available depending on production year.

Common Replacements:

• Allen-Bradley 505-BOD Reversing Starter
• Allen-Bradley 505-AOD Reversing Starter
• Allen-Bradley 505-DOD Reversing Starter