Siemens 3VA5145-6EC31-0AA0 45A 3P 600V Circuit Breaker, Bolt-On | AmpState

Meet the Siemens 3VA5145-6EC31-0AA0, a robust 3-pole bolt-on circuit breaker designed to deliver dependable protection in panelboards, load centers, and electrical distribution networks. With a 45 A rating and a 600 V maximum, this unit is built to safeguard your circuits against overloads and short circuits while maintaining alignment with your original equipment footprint.

Key features at a glance

• Three-pole bolt-on mounting for secure, vibration-resistant installation in compatible enclosures
• 45 A nominal current rating, ideal for protecting feeders and distribution circuits without nuisance trips
• 600 V maximum working voltage, suitable for a range of commercial and light-industrial applications
• Siemens part number 3VA5145-6EC31-0AA0 ensures BOM consistency for replacements
• Perfect for replacement projects and stocking spares to maintain original part number integrity
• Support from AmpState to verify fit and compatibility when you need to confirm exact match

Why this matters for your system

Using the exact original equipment part preserves protective coordination, trip behavior, and overall system reliability. The bolt-on design accelerates field service and reduces downtime, making maintenance workflows smoother and safer in panelboards and distribution panels.

Practical use cases

Install the Siemens 3VA5145-6EC31-0AA0 in installations where a 3-pole, 45 A, 600 V circuit breaker is specified. It’s a strategic choice for legacy facilities, data centers, commercial buildings, and manufacturing environments seeking to keep their electrical distribution consistent with the original specifications.

Compatibility and support

Need help verifying fit? Our team can assist in confirming compatibility with your existing equipment and BOM. If you’re replacing a failed breaker or stocking a spare, this Siemens unit helps you maintain a precise, original-part footprint for fast, reliable swaps.