3VA5225-7EC31-0AA0 - CFAS 250 Amp Circuit Breaker

3VA5225-7EC31-0AA0 - CFAS 250 Amp Circuit Breaker

When you’re dealing with serious electrical loads, you don’t want to second-guess your protection. The Siemens 3VA5225-7EC31-0AA0 circuit breaker is designed for exactly that kind of environment—where reliability isn’t negotiable, and downtime costs real money. This 250-amp, 3-pole breaker is part of the well-known 3VA52 series and is built to handle demanding commercial and industrial applications. What really sets it apart is its 100kA interrupting capacity at 480V, giving you the confidence to handle high-fault conditions without hesitation. It uses a thermal magnetic trip unit (TM230) with fixed settings, which means fewer variables and less room for error. The overload protection is set at 250A, and the instantaneous trip kicks in at 10 times the rated current. In plain terms, it reacts fast when something goes wrong, without needing constant adjustment or fine-tuning. If you’re replacing an existing breaker or building out a new system, this is the kind of component you install once—and trust to do its job.

Key Features and Benefits

• High Interrupting Capacity: 100kA @ 480V helps protect against severe fault conditions
• Thermal Magnetic Trip Unit: Combines overload and short-circuit protection in one simple design
• Fixed Protection Settings: No adjustments needed, reducing setup time and potential errors
• 250 Amp Rating: Well-suited for demanding electrical loads
• 3-Pole Configuration: Standard for three-phase systems
• Compact Size: Easier to integrate into panels and switchgear
• Consistent Performance: Built for long-term, dependable operation

Technical Specifications

• Part Number: 3VA5225-7EC31-0AA0
• Series: 3VA52 (UL Frame 250)
• Poles: 3
• Amperage: 250A
• Interrupting Rating: 100kA @ 480V
• Trip Unit: Thermal Magnetic (TM230)
• Overload Protection (Ir): 250A (fixed)
• Short-Circuit Protection (Ii): 10x In (fixed)
• Interrupting Class: C (CFAS)
• Dimensions: 9.65" H x 6.3" W x 5.9" D

Material Compliance and Certifications

• Manufactured to meet UL standards for molded case circuit breakers
• Designed for use in low-voltage power distribution systems
• Aligns with current electrical safety and compliance expectations

Where It Works Best

• You’ll typically find this breaker in places where performance and reliability matter day in and day out:
• Commercial buildings and large facilities
• Industrial plants and production environments
• Electrical distribution panels and switchgear
• Data centers and backup power systems
• Protection for feeders, motors, and heavy equipment