ABB THN3364 - 200A, 600V, 3-Pole, Disconnect Switch

Meet the ABB THN3364, a purpose-built disconnect switch engineered for serious electrical isolation in industrial and commercial settings. With a 200A capacity, 600V rating, and a compact 3-pole design, this switch is ready to safely disconnect power across three-phase systems while supporting essential lockout/tagout procedures.

Key features that matter in real-world operation

• Amperage rating: 200A for robust circuit isolation in mid-to-large facilities
• Voltage rating: 600V, suitable for standard industrial and commercial power distribution
• Configuration: 3-Pole architecture designed for three-phase systems, enabling clean, reliable disconnection
• Enclosure: NEMA 1 enclosure tailored for indoor installation with solid protection against incidental contact and dust
• Safety workflow: Purposefully built to support proper lockout/tagout procedures, elevating worker safety during maintenance and service
• Durability: Designed for dependable disconnection under load and long-term service in demanding environments

Why this disconnect switch stands out

The ABB THN3364 combines rugged construction with precise electrical performance to deliver reliable operation where failures aren’t an option. Its 3-pole configuration ensures balanced control of three-phase power, while the indoor-safe NEMA 1 enclosure protects the contacts and wiring from typical shop-floor conditions. This isn’t a generic off-the-shelf switch—it’s a purpose-built solution for safe energy isolation, long-term durability, and consistent performance even in busy commercial and industrial environments.

Ideal applications

• Industrial facilities and manufacturing lines requiring safe power isolation for maintenance
• Commercial buildings with three-phase distribution panels needing reliable disconnect capability
• Control panels and equipment rooms where lockout/tagout readiness is essential

How it integrates into your system

The THN3364 is formulated for straightforward integration with three-phase electrical systems. Its 200A capacity pairs with a 600V rating to handle typical mid-volume loads, while the 3-pole arrangement aligns with standard three-phase wiring schemes. When used within an appropriate indoor enclosure, it provides a clear, accessible disconnect point that supports safe, compliant maintenance and servicing workflows.

Practical considerations and best practices

• Install in accordance with standard electrical practices for lockout/tagout to protect technicians during service
• Plan wiring around a dedicated disconnect point to simplify troubleshooting and reduce downtime
• Pair with compatible control gear in ABB or compatible panels to ensure coordinated operation and clear isolation boundaries

Product snapshot: ABB THN3364 • 200A • 600V • 3-Pole • NEMA 1 enclosure • Disconnect switch for safe, reliable indoor isolation