Tomzn 3p 80A Mts Dual Power Manual Transfer Isolating Interlock Circuit Breaker

Basic Info.

Product Description

TO319G 3P 80A 400V AC1.When the handle on the I position:1 and 2 are connected5 and 6 are connected.9 and 10 are connected2.When the handle on the II position:1 and 4 are connected5 and 8 are connected.9 and 12 are connected3.When the handle is in the middle position: both groups are disconnected. The TOMZN TO319G is a heavy-duty 3P (3-pole) Manual Transfer Switch (MTS) engineered to facilitate safe, manual power source in three-phase AC electrical systems, ideal for industrial, commercial, and critical infrastructure applications. Rated for 400V~ AC and 80A, it combines robust load-handling capability with integrated safety features, making it a reliable choice for maintaining power continuity while protecting equipment and personnel.Designed as a dual power changeover switch, the TO319G enables users to manually switch between two independent AC power sources—such as grid power and a standby generator—with precision. The 3-pole configuration is critical for three-phase systems, as it ensures all three live wires (L1, L2, L3) are simultaneously connected or disconnected, preventing phase imbalance or electrical faults that could damage sensitive machinery. This makes it suitable for powering three-phase equipment like motors, compressors, HVAC systems, and industrial production lines.