ABB 91/20 - 20A, 400V, Fusible, Disconnect Switch

Meet the ABB 91/20, a purpose-built fusible disconnect switch engineered for dependable on/off isolation and precise overcurrent protection in demanding industrial and commercial environments. With a compact footprint and a maintainable design, this 20A, 400V device is ready to simplify panel layouts while delivering reliable protection where it matters most.

• Model: 91/20
• Amperage: 20 A
• Voltage: 400 V
• Fusible: Yes — integrated fusible protection for clear, immediate current interruption

Why the ABB 91/20 stands out

• Reliable isolation and protection: Combines a switch with fuse protection to deliver direct, dependable de-energization and overcurrent safeguarding in one compact unit.
• Compact, space-efficient design: Ideal for tight panelboards and limited electrical enclosures where every cubic centimeter counts.
• Maintenance-friendly: Designed for straightforward inspection and fuse replacement, helping you minimize downtime during routine service or fault conditions.
• Targeted for motor and circuit protection: Specifically suited for motor disconnects, panelboards, and branch circuits where a compact fusible switch is required.

Ideal use cases and scenarios

• Motor disconnects in compact drive systems and small to mid-size equipment where quick isolation is essential for safe maintenance.
• Local protection and disconnection within panelboards or distribution enclosures, keeping electrical circuits clearly isolated during service.
• Branch circuit protection in commercial or industrial installations where space-saving protection is a priority without compromising safety.

Practical considerations for implementing the ABB 91/20

• Plan around a straightforward maintenance workflow: have replacement fuses on hand to minimize downtime during fuse changes.
• Ensure the device is integrated within circuits that match its 20 A, 400 V ratings to maintain reliable protection and switch performance.
• Use as part of a thoughtful isolation strategy for equipment servicing, troubleshooting, and safety lockout/tagout procedures.

With the ABB 91/20, you get a focused, purpose-built solution that balances space economy with dependable protection. It’s an ideal choice when you need a compact, maintainable fusible disconnect switch that reliably protects motors and circuits while simplifying your panel design and service routines.