ABB OS100GJ12 - 100A, 600V, 3-Pole, Fused Disconnect Switch

Engineered for reliability in demanding electrical environments, the ABB OS100GJ12 is a high-performance fused disconnect switch designed to deliver safe, immediate isolation when you need to service or protect heavy equipment. With a 3-pole configuration and fuse protection, this device ensures all three phases are safely disconnected under load, supporting lockout/tagout procedures and long-term durability.

Key advantages

• 3-Pole design ensures complete, simultaneous isolation of all phases for safer maintenance and reduced arc risk during work.
• 100A current rating and 600V capacity make it suitable for a wide range of industrial feeders and motor circuits.
• Fused protection adds overcurrent safeguards at the point of isolation, helping to contain faults and protect wiring and equipment downstream.
• Lockout/tagout ready construction supports rigorous maintenance procedures and regulatory compliance.
• Durable, purpose-built design for ongoing performance in demanding environments, from manufacturing floors to commercial facilities.

Ideal use cases

• Isolating motors, conveyors, pumps, fans, and other high-load equipment for safe maintenance.
• Feeding power to critical machinery while enabling quick, compliant lockout/tagout procedures during service windows.
• Serving as a reliable main disconnect in industrial control panels and power distribution setups.
• Providing a clear, unambiguous isolation point in commercial or light industrial electrical installations.

Why choose the ABB OS100GJ12 over alternatives

The ABB OS100GJ12 combines robust fuse protection with a true three-pole isolation solution. This means you don’t just disconnect power—you gain overcurrent protection at the same time, helping to prevent damage from faults and making maintenance safer and more efficient. The fuse-based approach is particularly advantageous in systems where rapid fault interruption and clear, lockable isolation points are critical to safety and uptime.

Specifications

• Amperage rating: 100A
• Voltage rating: 600V
• Number of poles: 3-Pole
• Product type: Fused Disconnect Switch
• Brand: ABB
• Model: OS100GJ12

Practical installation and setup tips

• Pair the OS100GJ12 with appropriately rated fuses to ensure complete protection for your specific load and application.
• Integrate with standard lockout/tagout procedures using compatible padlocks to maintain a verifiable isolation point during maintenance.
• Position as a main disconnect for motor circuits or critical feeders to simplify de-energization during servicing.
• Coordinate with your control system to ensure clear indication of disconnection status and prevent accidental re-energization during work.

With the ABB OS100GJ12, you get a purpose-built fused disconnect switch that not only isolates safely but also guards your system against fault currents, supporting durable performance and safer maintenance in industrial and commercial power environments.