Siemens 3VA52125EC310AA0 Circuit Breaker, 125A, 3-Pole, 690V

Engineered for rugged industrial environments, the Siemens 3VA52125EC310AA0 is a 3-pole circuit breaker designed for heavy-duty electrical protection in industrial settings. Rated for 125 A and capable of handling up to 690 V, it’s an ideal choice for three-phase power distribution in manufacturing lines, processing equipment, and critical control circuits. Use the exact part number 3VA52125EC310AA0 to confirm compatibility with your application and panel or switchgear.

Three-phase protection with clear reliability

This Siemens circuit breaker delivers dependable overload and short-circuit protection for three-phase circuits, aligning with existing Siemens infrastructure for seamless maintenance and upgrades. The 125 A rating is well-suited for protecting feeders to motors, transformers, and distribution blocks in medium-load systems, helping to minimize downtime and equipment damage.

Key specifications

• Part number: 3VA52125EC310AA0
• Device type: Circuit Breaker
• Amperage: 125 A
• Poles: 3
• Voltage rating: 690 V

Ideal use cases

• Industrial electrical service, maintenance, and replacement projects
• Protection for three-phase distribution panels, motor control centers (MCCs), and equipment feeders
• Retrofits or upgrades in facilities that rely on Siemens gear to ensure compatibility and predictable performance

Why this matters

Choosing the right circuit breaker is about more than matching a number. The 3VA52125EC310AA0 is designed to integrate with Siemens equipment, delivering consistent trip behavior, straightforward maintenance, and reliable protection for critical processes. It helps safeguard personnel and keeps production lines running by interrupting fault conditions quickly and deterministically.

Compatibility and practical tips

• Verify fit by the exact part number and your application requirements. The 3VA52125EC310AA0 is a precise match for compatible Siemens panels and MCCs.
• Ensure the voltage rating and the three-pole configuration match your three-phase circuit and motor loads.
• Consult the official installation guide for wiring details, terminal types, and any site-specific installation considerations.
• Maintain documentation and spare parts on hand to minimize downtime during routine maintenance or replacements.

For updating industrial protection or replacing worn breakers, this Siemens 3VA52125EC310AA0 offers a robust, compatible solution that aligns with your 690-volt, three-phase systems. Use the part number to verify compatibility and proceed with confidence.