Square D DT-55 - 1-Pole, Circuit Breaker

Experience reliable overcurrent protection with the Square D DT-55 1-Pole Circuit Breaker. Built to endure the demands of challenging electrical systems, this unit delivers precise interruption when faults occur, safeguarding wiring and connected equipment.

With a 1-Pole configuration, it fits flexibly across panelboards, switchboards, and control panels, making it a practical choice for a range of installation needs in industrial, commercial, and OEM environments.

• Targeted protection — dedicated 1-pole circuit interruption for individual circuits, helping minimize outage impact while maintaining safety.
• Industrial-grade reliability — designed for the tough conditions found in distribution panels and motor control centers.
• Versatile deployment — ideal for panelboards, switchboards, and control panels in both new builds and retrofits.
• Safety and operation — supports dependable overcurrent protection and safe operation in critical power systems.

Key specifications

• Poles: 1-Pole
• Breaker type: Circuit Breaker

Use cases include protecting feeders in manufacturing lines, safeguarding motors in control centers, and providing reliable branch-circuit protection in distribution panels within industrial facilities or commercial buildings. This makes the DT-55 a solid choice for engineers and technicians who need a dependable, easy-to-integrate protection device without complicating the electrical topology.