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Quick guide to motor wiring

Author : Adrian September 24, 2025

Overview

This article explains how to read motor wiring. There are two common wiring methods.

Common wiring methods

  1. Star connection (photo)

    Schematic:

  2. Delta connection (photo)

    Schematic:

Key point

In practice, remember the appearance of the motor terminal: a single horizontal mark indicates a star (Y) connection, while three vertical marks indicate a delta (Δ) connection. Remembering this distinction makes wiring straightforward.