Siemens 3VA5150-4ED21-0AA0 Circuit Breaker, 50A, 2-Pole, 480V

Siemens 3VA5150-4ED21-0AA0 Circuit Breaker is built for industrial electrical service, maintenance, and replacement projects, delivering dependable overcurrent protection for 480V distribution feeders. This 2-pole unit combines precise interrupting capability with a robust design you can trust in demanding environments.

Key features and benefits

• 50 A rating provides reliable protection for feeder circuits in 480V systems, helping prevent damage from overloads.
• Two-pole configuration ensures effective protection across both live conductors, supporting balanced protection in industrial panels.
• Part-number driven compatibility—the exact model 3VA5150-4ED21-0AA0 is designed to fit Siemens panels and compatible industrial switchgear, reducing installation guesswork.
• Industrial-grade reliability engineered to perform in demanding environments where downtime and equipment damage must be avoided.

Why this circuit breaker stands out

More than a basic switch, this Siemens 3VA5150-4ED21-0AA0 unit is purpose-built for industrial service, offering predictable trip behavior and solid protection for 480V circuits. Its two-pole design minimizes nuisance trips and simplifies coordination with upstream protection, making it ideal for panel replacements, panel upgrades, and ongoing maintenance projects.

Ideal use cases

• Replacement in existing industrial panels requiring 2-pole, 50A protection for 480V feeders
• Upgrading electrical distribution at manufacturing or processing facilities where Siemens compatibility matters
• Maintenance routines that rely on readily matchable part numbers to minimize downtime

Specifications at a glance

• Part Number: 3VA5150-4ED21-0AA0
• Type: Circuit Breaker
• Amperage: 50 A
• Poles: 2
• Voltage: 480 V

Notes: Verify fit by part number and application requirements. Need help matching a part number or confirming compatibility? Message us and we'll help.