A 125A 3-phase changeover switch (or transfer switch) handles high-capacity power switching for commercial, industrial, or heavy-duty residential setups (typically rated around 400V/415V) between a primary power source (such as the main grid) and a backup source (such as a generator or inverter).
Key Specifications & Types
• Current Rating: 125 Amperes (Ith), suitable for large loads or sub-panel distributions.
• Pole Configuration: Available in 3-Pole (3-Phase power only) or 4-Pole (3-Phase + Neutral), where 4-pole is preferred if you need to isolate or switch the neutral line.