Brook Crompton 9-Lead NEMA Motor Connection Diagram
This document provides the official Brook Crompton connection diagram for 9-lead NEMA motors configured for across-the-line starting. It clearly illustrates correct lead groupings for both low-voltage and high-voltage applications, helping electricians, technicians, and maintenance professionals ensure proper motor installation, safe operation, and compliance with NEMA wiring standards.
Key Points
- Shows standard NEMA 9-lead motor wiring configurations for across-the-line starting
- Includes separate diagrams for low-voltage and high-voltage connections
- Identifies T1–T9 motor leads and correct grouping methods
- Useful for installation, troubleshooting, and verification during motor replacement
- Applicable to Brook Crompton NEMA-frame motors and compatible designs
- Helps reduce wiring errors that can lead to motor damage or unsafe operation