Siemens ED63A050L - 50 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED63A050L is a 50 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for residential, commercial, and light industrial environments, this MCCB offers solid protection you can trust when power quality and safety matter most.

• Secure bolt-on mounting: delivers a rigid, vibration-resistant bus connection to maintain consistent electrical contact and reduce wear over time.
• Thermal-magnetic trip unit: combines thermal and magnetic sensing for stable, repeatable protection against overloads and short circuits with minimal nuisance trips.
• 3-pole design: ideal for three-phase systems, providing synchronized protection across all conductors in a panel.
• OEM-compatible: engineered to be compatible with matching Siemens OEM load centers and panelboards for a seamless fit and reliable operation.
• 50 A, 600 V rating: suited for branch circuits requiring robust protection in a range of installation types, from home subpanels to light commercial panels.
• Molded case construction: compact, durable form factor that fits within standard electrical enclosures without compromising protection.
• Versatile applications: ideal for residential service panels, commercial distribution panels, and light industrial distribution where dependable overcurrent protection is essential.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: ED63A050L
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage: 50 A
• Voltage: 600 V
• Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who this is for

electricians, facilities managers, and electrical contractors who maintain Siemens-based panels and seek a reliable, OEM-compatible solution for three-phase protection. If you’re upgrading a panel or stocking spare breakers for Siemens panelboards, the ED63A050L provides a precise fit and predictable performance.

Key benefits in practice

• Reliable protection for three-phase distribution in commercial or light industrial setups.
• Consistent trip characteristics across temperature and load conditions due to the thermal-magnetic design.
• Less downtime and fewer compatibility issues thanks to OEM alignment with Siemens panel systems.
• Durable construction designed to withstand routine mounting in panelboards and loadcenters.

With Siemens ED63A050L, you gain a proven, purpose-built solution that protects your distribution networks while aligning with your existing Siemens equipment. It’s a practical, high-performance choice for robust branch circuit protection where three-phase reliability matters.