Siemens ED63A125L - 125 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED63A125L is a robust, three‑pole bolt‑on molded case circuit breaker designed to protect branch circuits in panelboards and load centers with dependable, repeatable performance. Available from AmpState, it’s built to stand up to demanding commercial and light industrial environments while remaining suitable for residential applications that require three‑phase protection.

• Secure bolt‑on mounting: provides a rigid, vibration‑resistant bus connection that helps maintain reliable protection even in systems subject to movement or vibration.
• Thermal‑magnetic trip unit: combines thermal overload sensing with magnetic short‑circuit actuation for fast, predictable disconnection and consistent protection across operating conditions.
• 125 A, 600 V, 3‑pole design: supports three‑phase branch circuits up to 600 volts, making it ideal for panelboards and load centers that service larger loads or motor-driven equipment.
• OEM compatibility: engineered to fit seamlessly with matching Siemens load centers and panelboards, ensuring proper electrical performance and straightforward retrofits or upgrades.
• molded case protection: a molded case design that balances compact form with robust protection, well-suited for residential, commercial, and light industrial applications requiring dependable overcurrent and short‑circuit protection.

Why choose the ED63A125L for your panel

The ED63A125L isn’t just about specs—it's about resilient, long‑lasting protection that reduces maintenance concerns and downtime. The bolt‑on mounting delivers a sturdier connection than some plug‑in alternatives, while the thermal‑magnetic trip unit provides stable performance across a wide range of operating conditions. If you’re upgrading an existing Siemens system or specifying a new installation, this 3‑pole device offers a reliable, compatible solution that aligns with traditional Siemens panelboards and load centers.

Technical specifications

• Manufacturer: Siemens
• Part Number: ED63A125L
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 125 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt‑on
• Application: Branch circuit overcurrent and short‑circuit protection

Ideal use scenarios

Use the ED63A125L in panelboards and load centers that demand reliable three‑phase protection for motors, lighting, and other branch circuits. It’s well suited for commercial suites, light industrial equipment rooms, and residential electrical upgrades where OEM compatibility and a secure connection matter most. For installations that require consistent protection in environments with vibration or movement, this bolt‑on MCCB offers a practical, code‑compliant solution.