Industrial HQNB3015 15A 3-Pole 240 V Circuit Breaker

Meet the Industrial HQNB3015 15A 3-Pole 240 V Circuit Breaker — a purpose-built protector for three-phase power in demanding industrial settings. Designed to guard motors, conveyors, pumps, and other essential equipment, this breaker interrupts power quickly and safely when overloads or faults occur, helping to minimize downtime and equipment wear.

• Current rating: 15 A
• Poles: 3
• Voltage rating: 240 V
• Part number: HQNB3015

Why this 3-Pole, 240 V solution matters

Three-phase systems rely on balanced protection across all conductors. The HQNB3015 provides uniform interruption on each phase, reducing the risk of phase imbalance that can stress motors and drives. Its 240 V rating makes it a natural fit for industrial panels and equipment powered from typical plant distributions, delivering reliable protection where it’s most needed.

Ideal use cases

• Motor and conveyor circuits in manufacturing lines
• Three-phase feeders for CNC machines and tooling
• Power distribution in plant panels and switchgear
• Pumps, fans, and HVAC systems that run on 240 V three-phase power

What makes it stand out

Unlike generic breakers, the HQNB3015 is purpose-built for industrial environments where three-phase protection is critical. Its straightforward 3-pole design simplifies wiring in new installations and upgrades, while the 15 A rating provides precise overload protection for common industrial loads without unnecessary tripping during start-up surges.

Installation and safety tips

• Have a licensed electrician install the unit in accordance with local electrical codes.
• Ensure the breaker is compatible with your panel’s bus system and mounting orientation.
• After installation, perform a service check and verify that each phase is protected evenly and that the trip mechanism operates correctly.

Practical guidance for best results

When upgrading or specifying protection for a three-phase 240 V circuit, the HQNB3015 offers a focused, reliable solution with a clear current rating for motor loads and process equipment. Use it in situations where you need balanced, predictable protection across all three phases, and where a compact, industry-grade breaker helps keep panel space efficient and maintenance straightforward.