Siemens ED63B110 - 110 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet Siemens ED63B110 — a 110 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built to integrate seamlessly with Siemens OEM equipment, it delivers reliable overcurrent and short-circuit protection across residential, commercial, and light industrial applications.

Why the ED63B110 stands out

• Secure bolt-on mounting: A rigid connection to the bus bars minimizes vibration-induced movement, ensuring stable electrical contact even in environments with equipment vibration or movement.
• Thermal-magnetic trip unit: Combines time-delayed thermal protection with instant magnetic tripping for fast response to faults, delivering stable, repeatable protection performance over time.
• OEM-compatible design: Specifically engineered to fit matching Siemens load centers and panelboards, helping maintain proper coordination and simplifying installation and future maintenance.
• Three-pole, 600 V protection: Ideal for three-phase distributions common in commercial and light industrial settings, while still suitable for complex residential circuits that require robust phase protection.

Specifications at a glance

• Manufacturer: Siemens
• Part number: ED63B110
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 110 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection for panelboards and load centers

Ideal use cases

This breaker is well-suited for panel installations in spaces where reliable protection is critical. Use it to:

• Replace a worn or failed 3-pole breaker in Siemens panelboards to restore circuit protection.
• Protect three-phase distribution circuits in small commercial setups and light industrial equipment runs.
• Provide robust, consistent protection for HVAC, motors, lighting, and other branch circuits that require reliable 110 A protection at up to 600 V.
• Maintain electrical system coordination within Siemens-made load centers by using a matching ED63 series device.

Practical installation and performance tips

• Verify panel compatibility by using ED63-series breakers designed for your Siemens load center to ensure proper fit and coordination.
• Use the bolt-on mounting as intended for a stable, vibration-resistant connection to the bus bar, reducing the risk of connection loosening over time.
• Rely on the thermal-magnetic trip to handle both overloads and short circuits—thermal protection for sustained overcurrent and magnetic trip for instantaneous fault isolation.
• Keep a spare ED63B110 on hand for quick maintenance and downtime minimization in critical panel installations.

Engineered for reliability, the Siemens ED63B110 delivers precise, dependable protection for your 110 A circuits at up to 600 V. If you’re upgrading, replacing, or constructing a panelboard or load center that requires a robust 3-pole bolt-on breaker, ED63B110 offers a tried-and-true solution designed to integrate smoothly with Siemens electrical systems.