3VA5245-7ED31-0AA0 - CFAS 45 Amp Circuit Breaker

3VA5245-7ED31-0AA0 - CFAS 45 Amp Circuit Breaker

If you just need a breaker that does its job and doesn’t cause problems later, this is one of those. The Siemens 3VA5245-7ED31-0AA0 is a 45 amp, 3-pole unit built for typical commercial and light industrial setups. Nothing flashy—but it handles what it’s supposed to handle. The big thing here is the 100kA interrupting rating at 480V, which gives you plenty of headroom if fault current is a concern. It’s got a fixed thermal magnetic trip (TM210), so there’s no adjusting or dialing things in. Overload protection is set at 45A, and if you get a short, it trips instantly at 10x that. That’s it. Simple. That’s usually what you want. Size-wise, it fits where it should. No surprises there.

Key Features and Benefits

• 100kA interrupting rating @ 480V: handles higher fault levels without issue
• Fixed trip unit: no setup, no guesswork
• Thermal magnetic protection: covers overloads and shorts
• 3-pole: standard for three-phase systems
• Fast trip on faults: reacts quickly when something goes wrong
• Compact enough: doesn’t eat up panel space

Technical Specifications

• Part Number: 3VA5245-7ED31-0AA0
• Series: 3VA5
• Amps: 45A
• Poles: 3
• Interrupting Rating: 100kA @ 480V
• Trip Unit: TM210 (fixed thermal magnetic)
• Overload: 45A
• Short-Circuit: 10x In
• Frame: 250
• Size:
  • Height: 9.65"
  • Width: 6.3"
  • Depth: 5.9"

Material Compliance and Certifications

• UL listed: UL listed
• Industry Standards: Meets standard industry requirements
• Interrupting Class: C interrupting class (CFAS)
• Build Quality: Built with consistent, tested components

Where It Works Best

• You’ll usually see this in: Commercial panels
• Small to mid-size industrial setups
• Equipment protection
• Facilities where available fault current is on the higher side
• Straight replacements in 3VA5 systems