ABB T5H-D - 400A, 3-Pole, Disconnect Switch

ABB T5H-D is a rugged 400A, 3-pole disconnect switch engineered for reliable electrical isolation in demanding industrial and commercial settings. It delivers safe, deliberate disconnection under load, helping you keep maintenance crews protected and systems operating with minimal downtime.

Built to support proper lockout/tagout (LOTO) procedures, the T5H-D makes it straightforward to secure power during service work. Its robust design ensures consistent performance when switching heavy loads, reducing arcing and wear over the life of the switch. This translates to longer service intervals and predictable operation in mission-critical electrical infrastructure.

• High-current capability: 400A rating supports large motors, feeders, and distribution circuits common in industrial facilities.
• Three-pole isolation: Simultaneous disconnection of all conductors in a 3‑phase system for complete electrical isolation.
• LOTO readiness: Designed to integrate with standard lockout/tagout practices, enhancing worker safety during maintenance.
• Under-load reliability: Engineered to interrupt or isolate circuits cleanly while energized, minimizing downtime and arc risks.
• Durable, purpose-built construction: Optimized for harsh industrial and commercial environments, delivering long-term durability and consistent performance.

Who benefits most: electrical engineers, plant maintenance teams, facilities managers, and technicians responsible for safe shutoff and isolation of large 3‑phase circuits in factories, distribution centers, water treatment facilities, and commercial buildings.

Typical use scenarios:

• Isolating a motor or conveyor line during preventive maintenance or repair work.
• Providing a clear, compliant power shutoff point for service personnel performing electrical tests.
• Securing critical feeders in switchgear or panel assemblies to prevent accidental energization.

Why choose the ABB T5H-D over alternatives: It combines a proven ABB design with a straightforward 3-pole configuration to ensure comprehensive circuit isolation. Its emphasis on safe disconnection under load, durable construction, and straightforward lockout/tagout compatibility makes it a reliable backbone for electrical safety and operational continuity in demanding environments.

Specifications

• Amperage Rating: 400A
• Number of Poles: 3-Pole
• Product Type: Disconnect Switch
• Brand: ABB
• Model: T5H-D

For installations that require dependable isolation, straightforward lockout/tagout compatibility, and durable performance under heavy loads, the ABB T5H-D 400A 3-Pole Disconnect Switch delivers clear, tangible value in everyday industrial and commercial operation.