ABB OS200J12 - 200A, Fused Disconnect Switch

Meet the ABB OS200J12, a 200A fused disconnect switch engineered for serious industrial and commercial environments where safe electrical isolation matters. This device delivers dependable disconnection under load while supporting proper lockout/tagout (LOTO) procedures, making maintenance safer and faster.

Designed for reliability in demanding settings, the ABB OS200J12 blends fused protection with a straightforward isolation point. The integrated fuse elements provide overcurrent protection in addition to a clear, verifiable disconnect, helping to minimize arcing and protect downstream equipment during fault events. When maintenance is needed, technicians can lock the switch in the OFF position and tag it, preventing accidental energization and enhancing crew safety.

Key advantages

• 200A rating for heavy-duty applications — ideal for feeder circuits, large motors, and other high-load equipment common in factories and facilities.
• Integrated fused protection — delivers reliable overcurrent protection and a single point of isolation, simplifying safety procedures and system reliability.
• Lockout/Tagout compatibility — built to support standard LOTO practices so maintenance teams can work with confidence and clarity.
• Rugged, durable construction — designed to endure the rigors of industrial environments, delivering long-term durability and predictable performance.
• Dependable disconnection under load — engineered to interrupt current safely when required, reducing downtime and supporting safe maintenance windows.

Ideal use scenarios

• Isolating power to motors, pumps, conveyors, or feeder lines for scheduled maintenance or repairs.
• Serving as the main service disconnect in commercial facilities with significant electrical demands.
• Enabling strict lockout/tagout procedures to protect technicians during servicing.
• Providing a reliable isolation point within control panels and switchgear assemblies.

Specifications at a glance

• Amperage Rating: 200A
• Product Type: Fused Disconnect Switch
• Brand: ABB
• Model: OS200J12

Practical tips for use and maintenance: replace fuse elements only with the manufacturer-recommended components and follow your facility’s lockout/tagout procedures. Regularly inspect terminations for tightness and signs of heat or corrosion, and ensure quick access to the fuse compartment for servicing. The ABB OS200J12 is built to be a reliable pillar in your electrical protection strategy, helping minimize downtime while maximizing safety and clarity in daily operations.