Siemens SENTRON Miniature Circuit Breaker 3-Pole 40A Type C 400V AC 60V DC 10kA Breaking Capacity 5SY4340-7

Siemens 5SY4340-7 Miniature Circuit Breaker from the SENTRON 5SY4 series is a 3-pole device rated for 40 amps with Type C tripping characteristics. It supports a rated AC voltage of 400V and rated DC voltage of 60V, with a breaking capacity of 10 kA. The device is designed for DIN rail mounting, offering ease of installation and fast removal, making it ideal for industrial, residential, and functional construction applications.

This miniature circuit breaker features a toggle switch for manual reset and screw terminal connections, ensuring secure and reliable operation. The compact design includes dimensions of 90mm height, 76mm width, and 90mm depth, with an IP20 rating providing basic protection against solid foreign objects.

Complying with international standards including IEC/EN 60947-2, UL1077, and IEC/EN 60898-1, it guarantees safety and quality performance in diverse environments. Its Type C tripping curve is engineered to handle 5 to 10 times the rated current during short circuits, suitable for protecting electrical circuits with moderate surge currents.

As a Better World product, this breaker emphasizes sustainability with an extended product life, aligning with efficient energy use and reduced carbon footprint initiatives. Produced in Germany, it underscores Siemens’ commitment to manufacturing excellence and long-term reliability.

Equipped with toggle switch for easy manual reset operations. Supports quick DIN rail mounting and removal for installation efficiency. Rated for dual voltages: 400V AC and 60V DC accommodating versatile applications. Incorporates screw type terminals ensuring firm electrical connectivity.

IP20 protection class safeguards against solids intrusion to reliable degree. Compact footprint with precise 90mm x 76mm x 90mm dimensions. Conforms to IEC/EN 60947-2, UL1077, and IEC/EN 60898-1 safety standards. Type C trip characteristics designed for medium surge current circuits.

Manufactured in Germany supporting high reliability and quality assurance. Endorsed as a Better World product for sustainability and extended product life.

This miniature circuit breaker is widely used in industrial, manufacturing, commercial, and residential electrical systems to provide reliable overcurrent protection. Siemens SENTRON 5SY4 series offers flexibility with various poles and current ratings, integrating easily with supplementary components like control current switches, fault signal contacts, and remote operating mechanisms to tailor protection solutions.

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