Siemens 3VA51251MH310AA0 Circuit Breaker, 25A, 3-Pole, 690V

The Siemens 3VA51251MH310AA0 circuit breaker is designed for reliability in industrial electrical service, maintenance, and replacement projects. With a 3-pole configuration supporting three-phase power and a 25 A rating, this unit delivers precise protection for demanding industrial circuits at up to 690 V. Built to perform in challenging environments, it helps keep motors, drives, and other heavy loads safeguarded against overloads and faults.

Key specifications

• Manufacturer: Siemens
• Part number: 3VA51251MH310AA0
• Product type: Circuit Breaker
• Amperage: 25 A
• Poles: 3
• Voltage rating: 690 V

Why this Siemens circuit breaker matters

• Exact part-number match ensures proper fit in Siemens boards and compatible enclosures, reducing guesswork during maintenance or replacement.
• Three-pole design is ideal for three-phase systems common in industrial facilities, providing coordinated protection for all phases of a circuit.
• 690 V rating supports high-voltage industrial distributions, giving you a clear path to protect equipment without oversizing components.
• 25 A protection strikes a balance between safeguarding equipment and allowing necessary startup currents for many motors and drives.
• Industrial-grade robustness built to withstand the demands of frequent switching, thermal cycling, and harsh environments found in maintenance and service settings.

Use cases and ideal applications

• Motor control centers and switchgear in manufacturing and processing facilities
• Replacement of worn or obsolete breakers in ongoing maintenance programs
• Upgrading electrical distribution to support reliable three-phase service for heavy machinery

How to verify compatibility

Always verify fit by the part number 3VA51251MH310AA0 against your equipment specifications and the application's voltage and current requirements. If you’re unsure about compatibility with your panel or enclosure, reach out for expert assistance to confirm mounting, wiring, and protective characteristics align with your system.

Notes: Use this part number to confirm compatibility for your application, and consult your local electrical codes for proper installation and safety practices. If you need help matching a part number or confirming compatibility, message us and we’ll assist in locating the correct solution.