Siemens | 5SJ4118-7HG40 | Circuit Breaker | 15A | 1-Pole | 240V

Siemens presents the 5SJ4118-7HG40 circuit breaker—a precise, dependable solution engineered for 15A, single-pole protection in 240V systems. Built to align with Siemens panels and distribution gear, this unit is ideal for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications at a glance
Amperage: 15A • Poles: 1-Pole • Voltage: 240V

Why this specific breaker stands out

• Exact-fit reliability—Described by its part number (5SJ4118-7HG40), this breaker is designed to match compatible Siemens equipment, ensuring proper mounting, labeling, and electrical clearance when you’re upgrading or replacing an existing unit.
• Maintenance, retrofit, and replacement ready—A practical choice for service crews and facilities teams who need a ready-to-install 15A, 1-pole solution that minimizes downtime during panel service or upgrades.
• Single-pole, 240V protection—Optimized for single-phase circuits in 240V systems, delivering reliable overcurrent protection where precise amperage control is essential.
• Siemens engineering you can trust—Part of the Siemens family designed to integrate smoothly with compatible panels, ensuring consistent performance and a clean, professional installation.

Who this is ideal for

• Electricians and service technicians performing routine maintenance on Siemens panels.
• Facility managers planning retrofit work or stocking a dependable spare for quick replacements.
• Homeowners or property owners who operate 240V circuits that require a 15A, single-pole breaker with proven OEM compatibility.

Practical guidance for best results

• Always confirm fit and ratings before ordering; the best reference for compatibility is the part number 5SJ4118-7HG40.
• When replacing, follow standard electrical safety: power down the panel, verify absence of voltage, and reseat the breaker firmly to ensure a solid connection.
• Store spare units in their original packaging and label them clearly for fast recalls during planned maintenance or emergency service.
• Use this breaker in appropriate Siemens systems rated for 240V and 15A to preserve panel warranty and ensure electrical compliance.

For projects requiring dependable 240V, 15A single-pole protection, the Siemens 5SJ4118-7HG40 delivers design-aligned reliability, straightforward installation, and a clear path to peak panel performance.