EHB3050L - 50Amp Circuit Breaker

EHB3050L - 50 Amp Circuit Breaker

When you're working with older electrical systems, finding the right breaker isn’t just about specs—it’s about fit, compatibility, and keeping everything running the way it was designed. The EHB3050L circuit breaker is built specifically for that purpose. Designed for panelboards manufactured before 1989, this 3-pole, 50-amp breaker gives you a straightforward, dependable solution for maintaining existing systems without unnecessary changes or guesswork. At its core, this is a thermal-magnetic circuit breaker that handles both overloads and short circuits with consistency. The non-interchangeable trip unit means what you install is exactly what you get—no adjustments, no surprises. With a 14k A.I.C. rating at 480VAC and a 40°C calibration, it’s suited for standard commercial and industrial environments where steady, reliable protection matters. Plus, with line and load terminals already included, installation is more efficient for electricians working in the field. If your goal is to keep a legacy system operating safely and as intended, this breaker delivers the correct form, fit, and function—plain and simple.

Key Features and Benefits

• Designed for Legacy Panels – Matches panelboards manufactured prior to 1989, helping avoid costly modifications
• Thermal-Magnetic Operation – Provides dependable protection against overloads and short circuits
• 3-Pole Design – Ideal for three-phase systems in commercial and industrial setups
• 50 Amp Capacity – Handles moderate electrical loads with steady performance
• 14k A.I.C. @ 480VAC – Suitable interrupting capacity for higher voltage applications
• Fixed Trip Unit – Non-adjustable design ensures consistent protection characteristics
• Line & Load Terminals Included – Helps streamline installation and reduce extra parts
• Built to Last – Solid construction intended for long-term use in working environments

Technical Specifications

• Part Number: EHB3050L
• Poles: 3
• Amperes: 50A
• Voltage Rating: 480VAC
• Interrupting Capacity: 14k A.I.C. @ 480VAC
• Frame Type: EHB
• Trip Type: Thermal-Magnetic (Non-Interchangeable)
• Temperature Rating: 40°C
• Terminals: Line and Load Included
• Dimensions / Ship Weight: Approx. 6.0 in height; 4.13 lbs

Material Compliance and Certifications

• Manufactured in accordance with established industry standards for molded case circuit breakers
• Designed for use in systems aligned with UL-listed equipment requirements (confirm specific application needs)
• Supports installation practices consistent with National Electrical Code (NEC) guidelines

Where It Works Best

• The EHB3050L is a practical choice when you’re maintaining or servicing existing electrical infrastructure and need a breaker that fits without reworking the system. It’s commonly used in:
• Commercial buildings with original or older panelboards
• Industrial facilities maintaining established electrical layouts
• Retrofit and repair projects requiring exact specification matching
• Service replacements where compatibility is critical