Siemens ED63A025 - 25 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED63A025 is a 25 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to deliver reliable branch circuit protection for panelboards and load centers. Built to withstand the rigors of vibration and daily operation, this breaker provides a secure, rigid bus connection and dependable performance in a variety of settings—from homes to light commercial applications.

What makes the ED63A025 stand out

• Bolt-on mounting offers a secure, vibration-resistant connection to the panel bus, reducing loosening risks and ensuring consistent electrical contact over time.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining overload protection (thermal) with fast short-circuit protection (magnetic), helping to prevent damage to wiring and downstream equipment.
• 3-pole configuration provides coordinated protection for three-phase circuits, ideal for residential 3‑phase panels, commercial lighting, or small industrial drives.
• 25 A, 600 V rating makes it suitable for a wide range of branch circuits, balancing protection with the ability to handle typical loads in panelboards and load centers.
• OEM compatibility designed to work with matching Siemens load centers and panelboards, ensuring proper fit, clear labeling, and straightforward replacement when upgrades or maintenance are needed.

Ideal use cases

This breaker is well-suited for three-phase branch circuits in residential, commercial, and light industrial environments. Use it to protect motor loads, HVAC equipment, lighting transformers, and other equipment fed from panelboards or load centers. When you need a reliable bolt-on solution that stays put through vibration and daily use, the ED63A025 is a practical choice.

Specification snapshot

• Manufacturer: Siemens
• Part number: ED63A025
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 25 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection in panelboards and load centers

If you’re upgrading an existing Siemens panel or building out a new 3‑phase distribution setup, the ED63A025 delivers precise protection with a robust mounting design that keeps connections solid during service life. Its combination of a thermal-magnetic trip and bolt-on reliability helps you avoid nuisance trips while ensuring quick response to actual faults. For installers and maintenance teams, this breaker provides a straightforward, compatible option that aligns with Siemens’ panelboard ecosystems and 3‑phase distribution needs.