Siemens Miniature circuit breaker 400V 15kA, 3-pole, D, 20A Part number 5SY7320-8CC

Product Overview

The Siemens miniature circuit breaker 5SY7320-8CC is a SENTRON 5SY7 series circuit breaker designed for protection of electrical circuits against overloads and short circuits. It provides reliable automatic switching and safe interruption of fault currents in industrial and commercial installations. With its compact design, screw-type terminals, and industrial-grade performance, this device ensures dependable circuit protection and simple DIN-rail mounting in distribution boards and control panels.

Key Features

• SENTRON 5SY7 miniature circuit breaker
• Designed for automatic overload and short-circuit protection
• Screw terminal connections for secure wiring
• Industrial-grade design for control and distribution panels
• Compact form factor for DIN-rail mounting
• Reliable circuit breaking and reset capability
• Suitable for AC supply systems in industrial installations

Technical Specifications

• Article Number: 5SY7320-8CC
• Product Family: SENTRON 5SY7 miniature circuit breakers
• Device Type: Miniature circuit breaker (MCB)
• Terminal Type: Screw terminals
• Mounting: DIN-rail mount
• Number of Poles: 3 (based on designation pattern for 5SY7320)
• Current Rating: Approx. 20 A (inferred from part number pattern)*
• Characteristic: C-curve for general protective use*
• Rated Operational Voltage: Up to ~400 V AC (typical for 5SY7 family)*
• Breaking Capacity: Up to 15 kA (industrial-grade)*
• Degree of Protection: IP20 installed

Compliance & Standards

• Designed for circuit protection in accordance with IEC/EN standards for miniature circuit breakers
• SENTRON 5SY7 series supports industrial and building installation protection requirements
• Manufactured to Siemens quality for low-voltage power distribution devices

Applications

The Siemens 5SY7320-8CC miniature circuit breaker is used for automatic protection of electrical circuits in industrial distribution boards, machinery power supplies, and lighting circuits. It protects wiring and equipment from damage due to overload and short-circuit faults, and is suitable for use in commercial and industrial power distribution installations where compact, resettable protection devices are required.