Siemens 5SQ2-103-7 Circuit Breaker, 3A, 1-Pole, 230V

Engineered for reliability in demanding industrial environments, the Siemens 5SQ2-103-7 is a purpose-built circuit breaker that delivers precise protection for 230V single-phase circuits. With a 3 A nominal rating and a single-pole design, this device is ideal for safeguarding small loads, control circuits, and auxiliary feeds within industrial panels, maintenance cabinets, and replacement projects.

Key features that set the 5SQ2-103-7 apart:

• 3 A current rating provides targeted protection for lower-current circuits, helping prevent wiring damage and equipment faults without unnecessary trips.
• 1-pole design offers straightforward single-phase protection on 230V systems, simplifying integration in compact or upgraded panels.
• 230V operating voltage aligns with standard industrial power distribution, making it a practical choice for control panels, machinery feeders, and lighting circuits.
• Industrial-grade reliability from Siemens, built to withstand the rigors of service, maintenance, and replacement projects where consistent protection is essential.
• Part number precision 5SQ2-103-7 ensures clear compatibility—verify fit by part number and application requirements to prevent mismatches.
• Easy compatibility within the 5SQ2 family—designed to work with matching accessories and field-adjustment components for streamlined installation and maintenance.

What problems does it solve? In short, it guards electrical wiring and connected equipment from overloads and short circuits on 230V circuits, reducing the risk of electrical fires, equipment damage, and unexpected downtime. By selecting the correct 5SQ2-103-7, you gain predictable performance, simplified stocking, and a proven, rugged component that technicians trust on the shop floor.

Who is this ideal for? Electrical contractors, maintenance technicians, plant engineers, and panel builders who need a dependable, compact protection device for single-phase 230V circuits. It’s equally suitable for retrofit projects, routine replacements, or new installations where Siemens reliability is a priority.

Compatibility tips: always confirm fit by the part number 5SQ2-103-7 and review your application requirements (voltage, current, and pole count) to ensure proper protection. If you’re unsure about pairing this breaker with your existing gear or panel, send us a message—we’re ready to help verify compatibility and propose the right configuration for your system.