Siemens SENTRON Miniature Circuit Breaker 4-Pole 20A Type B 400V ac 10 kA Breaking Capacity 5SY4420-6

Siemens 5SY4420-6 Miniature Circuit Breaker is a high-quality 4-pole device designed for protection of electrical circuits with a 20A current rating and Type B tripping characteristics. Operating at a rated AC voltage of 400V ac, it offers a robust breaking capacity of 10 kA ensuring safe disconnection under fault conditions.

This circuit breaker is part of the SENTRON 5SY4 series, recognized for its reliability and versatility in industrial, residential, and commercial applications alike. It is intended for DIN rail mounting, allowing quick and secure installation in control panels and distribution boards.

Its screw terminal type ensures firm and lasting electrical connections, while the IP20 rating provides protection against contact with solid foreign objects. The compact size, with dimensions of 76mm width, 90mm height, and 90mm depth, makes it suitable for various panel configurations.

Compliance with multiple international standards such as UL 1077, IEC 60947-2, EN 60898, EN 60204-1, DIN/VDE, and CSA C22.2 No.235 guarantees stringent quality and safety norms are met.

The toggle switch actuator allows manual resetting of the breaker after tripping, offering convenience and safety during maintenance and fault-clearance operations.

SENTRON Miniature Circuit Breakers support diverse supplementary components including control current switches, fault signal contacts, shunt releases, under voltage releases, and remote operating mechanisms to enhance circuit protection functionality.

Rated for 20A current ensuring reliable circuit protection. Type B tripping curve suitable for general purpose applications and protection of sensitive equipment. Rated at 400V AC for various industrial and residential setups.

High breaking capacity of 10 kA prevents damage during short circuits. DIN rail mounting for easy installation and replacement. Screw terminal type for secure wiring. Compact dimensions fit standard electrical panels. IP20 ingress protection rating.

Compliant with international safety and performance standards. Toggle switch reset actuator for straightforward operation.

Ideal for industrial, construction, manufacturing, and residential electrical protection requirements. Browse more Siemens electrical components and accessories on EnvMart for complete electrical solutions.