Siemens 5SX2240-7 - 40A, 480VAC, Circuit Breaker

Engineered for demanding electrical environments, the Siemens 5SX2240-7 circuit breaker delivers dependable overcurrent protection for high-voltage distribution up to 480V. With a 40A current rating, this unit safeguards panels, machines, and control systems in industrial, commercial, and OEM settings, helping you avoid costly downtime and equipment damage.

Why this breaker stands out

• Precise 40A protection keeps feeders and branch circuits within safe operating limits, reducing the risk of insulation damage and nuisance trips.
• 480VAC compatibility aligns with typical industrial power distribution, motor control centers, and equipment panels.
• Versatile deployment designed for use in panelboards, switchboards, control panels, and OEM equipment, simplifying installation in existing or new systems.
• Robust, dependable performance built to endure the demands of commercial and industrial environments, helping you maintain uptime in critical operations.

Ideal applications

• Industrial facilities and manufacturing plants with 480V distribution networks requiring reliable overcurrent protection.
• Motor control centers and distribution panels where precise protection at a 40A rating is essential.
• OEM equipment and custom control panels that require a Siemens-branded circuit breaker for seamless integration.

Key specifications at a glance

• Current rating: 40A
• Voltage rating: 480VAC
• Breaker type: Circuit Breaker
• Model: 5SX2240-7
• Manufacturer: Siemens

Whether you're upgrading an aging distribution panel or designing a new installation, the Siemens 5SX2240-7 delivers focused protection for high-voltage circuits, helping you maintain safe operation and steady performance across your electrical infrastructure.