ABB OETL-NF400SW - 400A, 3-Pole, Disconnect Switch

The ABB OETL-NF400SW is a high-performance Disconnect Switch crafted for industrial and commercial environments where safe, reliable electrical isolation is non‑negotiable. With a 400A rating across 3 poles, this model delivers decisive disconnection under load and supports proper lockout/tagout procedures to safeguard maintenance teams and equipment alike.

Designed to endure demanding operations, the OETL-NF400SW prioritizes long‑term durability and dependable performance in real-world installations. The three‑pole configuration ensures simultaneous isolation of all phases, reducing the risk of partial energization during servicing and making it an ideal choice for complex motor feeders, distribution panels, and critical power circuits.

Key benefits

• 400A, 3-Pole configuration: Reliable isolation for three‑phase systems, empowering clean, coordinated disconnection across all lines.
• Lockout/Tagout readiness: Compatible with standard padlocks and tags, enabling compliant, safe maintenance shutdowns.
• Disconnection under load: Proven performance to interrupt and isolate circuits when energy is present, supporting safer work practices and quicker recoveries.
• Industrial-grade durability: Engineered for use in demanding environments, delivering consistent reliability over time with reduced maintenance needs.
• Ease of integration: Designed to fit within common switchgear configurations and control schemes, simplifying installation and modernization projects.

Who should consider the ABB OETL-NF400SW? Manufacturers, facility engineers, and electrical contractors responsible for motor control centers, large feeders, or service entrance disconnects will find this switch a precise fit for ensuring safe, compliant isolation in daily operations and during scheduled maintenance.

Practical use cases: isolate 3‑phase motor feeders during repair work, provide a secure main disconnect for distribution panels, or serve as the primary isolation point in commercial building power distribution where rapid, reliable shutdown is essential.

Compared to lighter, single‑phase disconnects or smaller‑rating switches, the OETL-NF400SW offers a unified, robust solution for three‑phase systems with a clear emphasis on safety, reliability, and maintenance readiness. If your priority is dependable isolation, easy lockout/tagout compliance, and a durable option built for ongoing service in industrial environments, this ABB disconnect switch is designed to deliver.