Industrial KEP3400T52 400A 3-Pole Circuit Breaker Potential Transformer

Meet the Industrial KEP3400T52: a purpose-built 400 A, 3-pole circuit breaker designed for demanding industrial power systems. This robust device protects your three-phase feeders and equipment while enabling accurate metering and protection workflows through potential transformer interfaces. Built for reliability in switchgear, panel boards, and motor control centers, it helps you reduce downtime and extend equipment life in even the harshest environments.

Why the KEP3400T52 stands out

• Three-pole protection ensures balanced, synchronized interruption across all phases A, B, and C for consistent fault clearance.
• 400 A current rating supports large industrial loads, from heavy motors to substantial distribution circuits, with room to grow in expanding facilities.
• Part Number clarity—KEP3400T52 for easy specification, procurement, and asset management in maintenance schedules.
• Potential transformer compatibility enables seamless integration with metering and protection relays, supporting accurate monitoring without added hardware clutter.
• Rugged industrial construction designed to withstand dusty, vibration-prone environments typical of manufacturing floors and utility rooms.
• Clear protection performance provides fast, predictable interruption during overloads and short circuits to minimize equipment damage and downtime.

Ideal use cases

• Medium to large motor control centers and switchgear assemblies requiring reliable three-phase protection up to 400 A.
• Industrial facilities with critical loads that benefit from integrated protection and measurement through potential transformer interfaces.
• Power distribution panels in manufacturing, processing, and logistics environments where uptime is essential.

Practical benefits you’ll notice

• Improved safety for personnel and equipment due to rapid, coordinated tripping across all phases.
• Enhanced monitoring capability when paired with protection relays and metering systems via the potential transformer interface.
• Streamlined maintenance and inventory management thanks to a clearly identified part number and standardized 3-pole form factor.
• Better fault diagnosis with predictable performance, reducing mean time to repair after events.

Choosing the KEP3400T52 means investing in a dependable, scalable protection solution for industrial power distribution. Its combination of 400 A capability, 3-pole architecture, and potential transformer compatibility gives you precise protection, easier integration with monitoring systems, and peace of mind in environments where consistent performance matters most.