3VA4145-4ED34-0AA0 - 45Amp Circuit Breaker

3VA4145-4ED34-0AA0  -  45Amp Circuit Breaker

When you’re protecting critical electrical systems, you don’t want guesswork—you want something that just works, every time. The Siemens 3VA4145-4ED34-0AA0 molded case circuit breaker is built for exactly that kind of dependability. Designed as part of Siemens’ SENTRON 3VA4 line, this breaker handles overloads and short circuits with consistent, predictable performance, making it a solid choice for commercial and industrial setups where reliability matters. With a 45 amp rating and 3-pole configuration, it’s well-suited for three-phase systems, while its 25 kA interrupting capacity at 480V gives you the protection needed to handle serious fault conditions. The built-in thermal-magnetic trip unit (TM210) keeps things straightforward—no complicated adjustments, just fixed settings that do their job without constant attention. It’s compact, efficient, and built to last, which is exactly what most professionals are after when specifying breakers for real-world applications.

Key Features and Benefits

• 45 Amp Protection You Can Count On
  Fixed overload protection keeps performance consistent without ongoing adjustments.
• 25 kA Interrupting Capacity @ 480V
  Helps protect equipment from high fault currents and unexpected surges.
• Thermal-Magnetic Trip Unit (TM210)
  Simple, reliable protection with fixed trip settings for peace of mind.
• 3-Pole Design for Three-Phase Systems
  Ideal for commercial panels, machinery, and distribution setups.
• Compact 125 Frame Size
  Saves panel space while still delivering strong protection.
• Built for Real-World Use
  Designed to handle repeated operation with solid mechanical and electrical life cycles.
• HACR & HID Rated
  Suitable for HVAC systems and high-intensity lighting applications.

Technical Specifications

• Brand: Siemens
• Series: SENTRON 3VA4
• Model Number: 3VA4145-4ED34-0AA0
• Type: Molded Case Circuit Breaker
• Poles: 3
• Rated Current: 45A
• Max Voltage: 600V AC
• Interrupting Rating:
  • 25 kA @ 480V
  • 65 kA @ 240V
• Trip Unit: TM210 (Thermal-Magnetic)
• Overload Setting (Ir): Fixed at 45A
• Instantaneous Trip (Ii): 10x rated current
• Mechanical Life: Approx. 15,000 operations
• Dimensions: 5.09" H x 3" W x 2.96" D
• Weight: 0.743 kg

Material Compliance and Certifications

• This breaker meets widely recognized safety and environmental standards, so you can install it with confidence:
• UL 489 listed for North American applications
• RoHS compliant (restriction of hazardous substances)
• WEEE compliant for responsible end-of-life handling
• HACR and HID rated for specialized electrical applications
• These certifications matter—especially for equipment tied to safety and financial risk—where accuracy and trust are non-negotiable .

Where It Works Best

This mainly use for:

• Commercial electrical panels
• Industrial equipment and machinery protection
• HVAC systems and refrigeration units
• Lighting systems, including HID setups
• OEM control panels and distribution systems