Circuit breaker for transformer protection 20A PKZM0-20-T 088918

Transformer protection switch – reliability and installation safety

This three-pole transformer protective switch, designated PKZM0-20-T and with a rated current of 20A, is a key element ensuring effective protection in electrical installations. Designed in accordance with IEC/EN 60947, it combines functionality and safety, protecting transformers from overload and short circuit. Its solid construction and the possibility of mounting on a TH rail make it an ideal solution for both professional installers and end users.

Construction features and application

The PKZM0-20-T switch features an adjustable overload release (range 16-20A) and short-circuit release (380-380A), allowing precise adjustment to the specifics of the protected installation. Additionally, it has a built-in trip indicator, making it easier to quickly identify the cause of the operation. The design with a knob provides convenient operation and intuitive parameter adjustment. Designed to operate with transformers up to 690V AC, it finds application in control circuits, switchboards and low-voltage SELV/PELV/FELV installations. The rated short-circuit breaking capacity of 50kA at 400V, 50Hz guarantees effective protection even in the event of serious disturbances.

Advantages and benefits

• Versatility: The possibility of mounting on both TH and DIN TH rails provides flexibility during installation.
• Transformer protection: Specifically designed to protect transformers from overload and short circuit.
• Parameter adjustment: Adjustable overload and short-circuit release allows precise adjustment to the needs of a specific installation.
• Trip indicator: Quick identification of the cause of operation facilitates diagnosis and repair of failures.
• Durability and reliability: Compliance with IEC/EN 60947 and high quality workmanship guarantee long-lasting and trouble-free operation.
• Safety: IP20 protection degree provides protection against contact in accordance with VDE 0106 part 100.
• Easy installation: Screw terminals and optional Push-in terminals are available for quick wiring without tools (does not apply to this specific model).
• High short-circuit breaking capacity: Rated short-circuit breaking capacity of 50kA at 400V ensures effective protection of the installation against the effects of short circuits.
• Reliable operation: Eaton switches have been manufactured since 1932, which proves their proven experience and high product quality.

The PKZM0-20-T switch is an investment in the safety and reliability of your electrical installation – both for professionals and end users looking for a proven solution to protect transformers.