Siemens 5SY4225-7 25A 2-Pole 400 V Circuit Breaker

Siemens 5SY4225-7 is a 25 A, 2-pole, 400 V circuit breaker engineered for reliable overcurrent protection in electrical panels and distribution boards.

As part of the trusted Siemens 5SY family, this device safeguards two conductors in 400 V circuits, delivering dependable protection for a range of commercial and light industrial applications where safe, continuous operation matters.

• Part Number: 5SY4225-7
• Current rating: 25 A
• Poles: 2
• Voltage rating: 400 V

Use cases and benefits

• Provides two-pole protection for 400 V electrical distributions, suitable for configurations that require simultaneous isolation of two conductors.
• Designed for direct compatibility with Siemens panels and the broader 5SY series, helping maintain system coordination and predictable protective performance.
• Helps prevent damage to wiring and connected equipment by interrupting current on overloads and short circuits, reducing downtime and maintenance costs.

Why choose this model

• Exact 25 A current rating ensures precise protection for circuits without unnecessary trips.
• Two-pole design provides reliable isolation of two conductors in 400 V installations, enhancing safety and service continuity.
• Part of a well-established Siemens protection lineup, offering compatibility, consistency, and a familiar replacement path for existing installations.