Hubbell HBL7843D - 40A, 600V, 3-Pole, Disconnect Switch

The Hubbell HBL7843D is a high-performance disconnect switch designed for industrial and commercial environments that demand safe, reliable electrical isolation. With a 40A rating and a 600V maximum, this 3-pole disconnect provides clean, decisive disconnection under load while supporting standard lockout/tagout procedures to protect maintenance personnel and ensure compliant shutdowns.

Why the HBL7843D stands out

This model is purpose-built to deliver consistent performance where it matters most—during routine maintenance and emergency isolation. The 3-pole design ensures all three phases are interrupted, eliminating partial isolation risks and enhancing overall system safety. Built for durability in demanding settings, the HBL7843D offers dependable operation over the life of your equipment, reducing downtime and maintenance headaches.

Key benefits

• 3-pole isolation for complete shutdown of all phase conductors
• 40A current rating suitable for motor feeders, auxiliary circuits, and control lines
• 600V rating accommodates standard industrial power distributions
• Supports standard lockout/tagout procedures to protect workers during service
• Reliable disconnection under load, engineered for long-term durability in busy facilities

Ideal use scenarios

• Service and maintenance outages for motors, conveyors, and machine tools
• Feeder disconnects in commercial electrical rooms and switchgear
• Safety isolation points in control panels where quick, dependable outage is required

Practical considerations and tips

To maximize safety and performance, pair the HBL7843D with appropriate lockout devices and follow established lockout/tagout procedures. Ensure correct three-phase wiring alignment so the switch cleanly isolates all conductors, and maintain a routine inspection schedule to confirm the interlock and mechanical integrity remain uninterrupted over time.

Technical snapshot

Model: Hubbell HBL7843D — 3-Pole Disconnect Switch • Amperage: 40A • Voltage: 600V • Use: Industrial and commercial electrical isolation • Purpose: Safe, reliable disconnection under load with LOTO compatibility