3VA4145-5ED34-0AA0 - 45Amp Circuit Breaker

3VA4145-5ED34-0AA0  -  45Amp Circuit  Breaker

If you’re looking for a dependable 45 amp breaker that just does its job without overcomplication, the Siemens 3VA4145-5ED34-0AA0 is a solid choice. Part of the SENTRON 3VA4 line, this 3-pole molded case circuit breaker is built for everyday protection in commercial and industrial setups where reliability matters more than bells and whistles. It comes equipped with a thermal-magnetic trip unit (TM210) that’s factory set, so there’s nothing to dial in or second-guess. You install it, and it works. With a 35 kA interrupting rating at 480V, it’s capable of handling serious fault conditions while helping protect your equipment from damage and unexpected downtime. This is the kind of breaker you’ll typically see in panel upgrades, new installations, or maintenance replacements—especially when you want something straightforward, durable, and backed by a well-known manufacturer like Siemens.

Key Features and Benefits

• 45 Amp rating suited for a wide range of commercial and industrial applications
• 3-pole design for use in three-phase systems
• 35 kA interrupting capacity at 480V for strong fault protection
• Thermal-magnetic trip unit (TM210) with fixed settings—no adjustments needed
• Overload protection set at 45A for consistent performance
• Instantaneous trip at 10x rated current for quick response to short circuits
• UL 489 listed (HACR & HID rated) for HVAC and lighting use
• Compact frame size helps save space inside panels

Technical Specifications

• Manufacturer: Siemens
• Series: SENTRON 3VA4
• Catalog Number: 3VA4145-5ED34-0AA0
• Type: Molded Case Circuit Breaker
• Poles: 3
• Amperage: 45A
• Voltage Rating: Up to 600V AC
• Interrupting Capacity:
  • 35 kA @ 480V
  • 85 kA @ 240V
  • 18 kA @ 600Y/347V
• Trip Unit: TM210 (Thermal-Magnetic)
• Operating Temperature: -25°C to 70°C
• Protection Rating: IP40 (front)

Material Compliance and Certifications

• UL 489 Listed
• RoHS Compliant
• REACH Compliant
• WEEE Directive compliant
• ECCN: EAR99

Where It Works Best

• This breaker fits well in:
• Commercial electrical panels
• Industrial equipment and machinery
• HVAC systems
• Lighting circuits (including HID)
• OEM builds and retrofit jobs