ABB 402-3P99/DB - 40A, 600V, 3-Pole, Disconnect Switch

ABB 402-3P99/DB is a high-performance disconnect switch designed for industrial and commercial environments where safe electrical isolation is non-negotiable. It delivers dependable disconnection under load and is engineered to support lockout/tagout (LOTO) procedures, helping maintenance teams work safely and efficiently.

• Amperage rating: 40 A
• Voltage rating: 600 V
• Number of poles: 3-Pole
• Product type: Disconnect Switch
• Brand: ABB
• Model: 402-3P99/DB

• Triple-pole isolation: Simultaneous disconnection of all three conductors minimizes partial energization and reduces arc exposure, enhancing overall safety during maintenance and troubleshooting.
• Lockout/Tagout readiness: Built to integrate with standard LOTO practices, ensuring that lines stay de-energized until work is completed and verified.
• Load-capable performance: Consistently interrupts circuits under load, providing reliable isolation without compromising uptime.
• Rugged, long-term durability: Designed to endure demanding industrial conditions, delivering stable operation across years of service.

Ideal for use in

• Power distribution panels and motor control centers
• Industrial machinery and manufacturing lines requiring safe shutoff
• Facilities implementing strict maintenance shutdown procedures

This switch is a strong fit for electrical engineers, panel builders, maintenance technicians, and OEMs who need a dependable, compliant means of isolating power across multi-phase systems. With the ABB 402-3P99/DB, you gain a clear, physical disconnect that supports safety protocols, minimizes downtime risk, and aligns with rigorous industry standards.

Practical usage notes: verify compatibility with your panel’s mounting footprint and wiring configuration, ensure all three poles are accessible for service, and pair the disconnect with appropriate enclosure solutions and LOTO practices to maximize safety and reliability.

Choosing ABB means leveraging decades of power-distribution expertise, reliable performance, and strong support for parts and service when you need it. Equip your electrical safety program with the 402-3P99/DB to safeguard personnel and keep operations running smoothly.