Overview
The Allen-Bradley ASSY 50399 driver board is a legacy control component designed for medium-duty drive applications in the 15–20 HP range. Originally manufactured by Rockwell Automation (Allen-Bradley), this board has been discontinued by the manufacturer but remains valuable for field repairs and legacy system maintenance. The ASSY 50399 integrates proven drive control logic and is compatible with earlier Allen-Bradley 1336-series and related drive platforms.
Key Features
- Rated for 15–20 HP drive systems
- Dual male connectors: 6-pin and 10-pin configurations
- 4-hole mechanical mounting pattern for standard enclosure integration
- Proven reliability in legacy industrial automation systems
- Compact PCB assembly design for easy retrofit installation
- Compatible with classic Allen-Bradley drive architectures
Technical Specifications
- Part Number: ASSY 50399 (Alternate: S50399-001, 1334-50399, SP-50399)
- Manufacturer: Allen-Bradley / Rockwell Automation
- Horsepower Rating: 15–20 HP
- Primary Connectors: 6-pin male, 10-pin male
- Mounting: 4-hole pattern
- Application: Drive control / power circuit board
- Status: Discontinued by manufacturer
- Condition: Used, fully functional
Typical Applications
The ASSY 50399 is well-suited for:
- Field service replacements on vintage Allen-Bradley drives
- Production line legacy equipment maintenance
- DC and AC drive retrofit solutions
- Industrial motor control systems operating at medium power levels
- Manufacturing facilities with established drive infrastructures
Compatibility & Replacements
The ASSY 50399 is cross-referenced under multiple part designations including S50399-001, 1334-50399, SP-50399, and 50399-001. As this is a discontinued component, exact modern replacements from Rockwell Automation are limited; however, newer Allen-Bradley drive boards may offer functional equivalents for contemporary installations. For legacy system support, consult your integration partner or Rockwell Automation’s field support team to confirm compatibility with your specific drive model and revision level.








