Industrial GB1040 40A 1-Pole 120 V Circuit Breaker

Meet the Industrial GB1040 40A 1-Pole 120 V Circuit Breaker — a compact, reliable solution for protecting a single hot-leg circuit in demanding industrial environments. Part number GB1040 ensures you’re selecting a trusted component built for steady performance where it matters most.

• Current rating: 40 A
• Poles: 1
• Voltage rating: 120 V

Why this matters

• Single-pole design provides targeted protection for a single 120 V circuit, simplifying wiring, diagnostics, and replacement in crowded panels.
• 40-amp capacity supports moderate-load industrial equipment and lighting circuits without nuisance trips due to minor surges.
• Specifically suited for 120 V industrial systems, offering a practical, straightforward solution for reliable overcurrent protection.

Use cases

• Protect heavy 120 V equipment and machinery in manufacturing or warehouse settings, such as conveyors, pumps, or HVAC components that run on a single hot leg.
• Guard lighting or receptacle circuits that require higher protection than typical residential breakers but don’t require multi-pole configurations.
• Install as a dedicated safety measure for critical 120 V loads in control panels and equipment racks.

What sets it apart

• Industrial-grade design aimed at reliability in demanding environments, with a clear 40 A, 1-Pole, 120 V specification that aligns with practical wiring practices.
• Part number clarity (GB1040) to help you source compatible replacements quickly, reducing downtime during maintenance.
• Isolates a single circuit to streamline troubleshooting and minimize system-wide interruptions.

Installation and best practices

• Verify the circuit load to ensure it remains within the 40 A rating.
• Install in a compatible enclosure with proper clearance for safe operation and easy replacement.
• After installation, test the circuit to confirm proper interruption during a fault simulation and document the part number GB1040 for future maintenance cycles.

Designed for professionals who value dependable, straightforward overcurrent protection for 120 V industrial circuits. The Industrial GB1040 40A 1-Pole 120 V Circuit Breaker helps reduce downtime, protect wiring insulation, and extend the life of essential equipment.