Siemens ED63B020 - 20 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED63B020 is a 20A, 600V, 3-pole bolt-on molded case circuit breaker designed to guard branch circuits against overcurrent and short-circuit events in panelboards and load centers. Built for reliability in demanding environments, this unit delivers predictable protection with a compact, rugged footprint that fits seamlessly into 3-phase electrical installations.

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection that stays tight and dependable even in environments with equipment vibration or movement.
• Thermal-magnetic trip unit: combines thermal overload protection with magnetic instantaneous action to deliver stable, repeatable protection performance against both sustained overloads and sudden short circuits.
• Three-pole, 20A, 600V design: ideal for protecting three-phase circuits common in commercial and light industrial applications, while maintaining safe operation at higher voltage levels.
• OEM compatibility: engineered to work with matching Siemens OEM load centers and panelboards for a clean fit, consistent trip characteristics, and straightforward integration into existing systems.
• Versatile application: suitable for residential, commercial, and light industrial uses, making it a practical choice for new installations, panelboard retrofits, or service upgrades.

Technical snapshot

• Manufacturer: Siemens
• Part Number: ED63B020
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 20A
• Voltage: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider this breaker? electrical professionals outfitting three-phase panels in commercial or light industrial facilities, facility managers upgrading electrical distributions, and installers seeking reliable, Siemens-compatible protection that aligns with OEM panelboards. In practice, the ED63B020 helps prevent nuisance trips caused by loose connections and provides fast, predictable responses to short circuits, reducing downtime and protecting wiring, transformers, and connected equipment.

Pair this bolt-on molded case breaker with your Siemens panelboard lineup for a cohesive protection strategy that delivers consistent performance, easy installation, and long-term reliability across residential, commercial, and light industrial environments.