HYUNDAI ELECTRIC HBL-103 CIRCUIT BREAKER 50A 440VAC 42KA FREE

The HYUNDAI ELECTRIC HBL-103 Circuit Breaker is a rugged, industrial-grade solution designed for dependable electrical distribution in demanding environments. With a 50 A rating, 440 VAC operating voltage, and an impressive 42 kA short-circuit interrupting capacity, this breaker is engineered to protect wiring and equipment while keeping critical circuits energized.

Built by HYUNDAI ELECTRIC, the HBL-103 stands out as a practical choice for panel upgrades, retrofit projects, and maintenance replacement work where dependable performance matters. It’s tailored for electricians, panel builders, and MRO teams who need trusted components that fit fast-paced service scenarios and spare their downtime budget.

Key specifications

• Amperage rating: 50 A
• Voltage rating: 440 VAC
• Interrupting capacity: 42 kA
• Spaces / circuits: 103 circuits
• Brand: HYUNDAI ELECTRIC
• Model: HBL-103

Why this model stands up to real-world demands

• High-capacity distribution: Designed for large panels and demanding loads, the HBL-103 supports robust electrical distribution without compromising protection.
• Reliable service replacement: A concrete, proven option for replacing aging or failed breakers in retrofit or maintenance scenarios.
• Versatile for multiple sectors: Suitable for industrial, commercial, and challenging residential applications where dependable control is essential.
• Easier stocking for service teams: A single, trusted Hyundai Electric component that simplifies spares planning for panel upgrades and ongoing maintenance.

Ideal for: electricians performing panel upgrades and service replacements, panel builders integrating high-capacity distribution, and MRO teams seeking a dependable, long-lead-time component for critical infrastructure.

In practice, the HBL-103 helps you minimize downtime by delivering clear, consistent protection across a large number of circuits. Its 50 A rating and 440 VAC operation pair with your existing bus and enclosure to provide straightforward integration, predictable performance, and peace of mind on high-demand projects.

Practical tips: verify panel compatibility with a 50 A, 440 VAC breaker and ensure the enclosure and bus arrangement support up to 103 circuits. Label the breaker clearly for maintenance teams and keep a spare HBL-103 on hand to accelerate future upgrades or replacements.