3VA4150-4ED34-0AA0 - 50Amp Circuit Breaker

3VA4150-4ED34-0AA0  -  50Amp Circuit Breaker

When you're choosing a circuit breaker, you're really choosing how much risk you're willing to tolerate. The Siemens 3VA4150-4ED34-0AA0 is built for people who don’t want to take chances. It’s a 50-amp, 3-pole molded case circuit breaker designed to quietly do its job—protect your system from overloads and short circuits—without needing constant attention. This model comes with a fixed thermal-magnetic trip unit (TM210), which means the protection settings are already dialed in. No adjustments, no second-guessing. It trips when it should, and stays out of the way when it shouldn’t. With an interrupting capacity of 25 kA at 480V (and up to 65 kA at 240V), it’s well-suited for commercial and light industrial environments where reliability matters more than bells and whistles. It’s also part of Siemens’ SENTRON 3VA4 line, so you’re getting a design that’s widely used, well-supported, and trusted across a range of applications—from HVAC systems to distribution panels. Install it once, and you can move on to more important things.

Key Features and Benefits

• Fixed trip settings (TM210): No field adjustments needed—reduces errors and keeps protection consistent
• Strong interrupting capacity: 25 kA @ 480V handles demanding fault conditions
• 3-pole design: Built for standard three-phase systems
• Compact 125 frame: Saves space inside panels without sacrificing performance
• HACR and HID rated: Suitable for HVAC and lighting applications under UL 489
• Built for longevity: Designed to handle thousands of operating cycles

Technical Specifications

• Manufacturer: Siemens
• Series: SENTRON 3VA4
• Catalog Number: 3VA4150-4ED34-0AA0
• Rated Current: 50 Amps
• Poles: 3
• Voltage Rating: Up to 600V AC
• Interrupting Capacity:
  • 25 kA @ 480V
  • 65 kA @ 240V
• Trip Unit: TM210 (Thermal-Magnetic, LI protection)
• Short-Circuit Protection: Fixed at 10× In
• Dimensions: 5.09" H x 3" W x 2.96" D
• Weight: 0.743 kg (1.64 lbs)
• Operating Temperature: -25°C to 70°C
• Ingress Rating: IP40 (front)

Material Compliance and Certifications

• UL 489 Listed
• RoHS Compliant
• REACH Compliant
• WEEE Compliant
• Export Classification: EAR99

Where It Works Best

• Commercial electrical panels
• Industrial equipment and control systems
• HVAC and refrigeration units
• Manufacturing environments
• Any setup where fixed, reliable protection is preferred over adjustable settings