Siemens SENTRON Miniature Circuit Breaker, 1-Pole, 20A, Type D, 230V AC, 60V DC, 10 kA Breaking Capacity 5SY4520-8

Siemens 5SY4520-8 SENTRON Miniature Circuit Breaker is a high-quality 1-pole device rated for 20 Amperes with Type D tripping characteristics, designed to provide reliable protection for electrical circuits. It supports operation at 230 volts AC and 60 volts DC and features a breaking capacity of 10 kiloamperes, making it suitable for use in industrial, commercial, and residential environments where high surge currents are expected.

This circuit breaker mounts on a standard DIN rail, enabling quick and secure installation and facilitates easy removal and replacement. The combined terminal design ensures flexible and stable wiring connections. It complies with international safety and performance standards IEC/EN 60947-2, UL1077, and IEC/EN 60898-1, confirming its suitability for low-voltage circuit applications.

The compact dimensions of 90mm height, 36mm width, and 76mm depth allow efficient panel space usage, and the IP20 ingress protection rating safeguards against contact with hazardous parts and solid objects. The device supports a range of supplementary components including control current switches, shunt and under voltage releases, fault signal contacts, and remote operating mechanisms to enhance circuit safety and control.

Tripping curve type D enables the breaker to tolerate inrush currents between 10 to 14 times the rated current, ideal for protecting motors, transformers, welders, and circuits with high surge loads. This ensures reliable disconnection under fault conditions while minimizing nuisance trips, protecting equipment and personnel effectively.

Manufactured in Germany, this breaker is part of Siemens' SENTRON 5SY4 series that combines innovation and durability, offering extended product life and assuring performance continuity in demanding electrical setups. It is a better world product, contributing to sustainability goals through its energy-efficient design and long operational life.

Type D tripping characteristic for high surge current protection. Suitable for residential, commercial, and industrial power circuits. DIN rail mount for easy installation and maintenance. Complies with IEC/EN 60947-2, UL1077, and IEC/EN 60898-1 standards.

Compact form factor saves panel space. Provides 10 kA breaking capacity ensuring circuit safety. Combined terminal type for versatile wiring options. Explore the range of Siemens circuit breakers and automation products on EnvMart for reliable electrical safety and industrial applications.