Circuit breaker for transformer protection 4A PKZM0-4-T 088914

Circuit breaker for transformer protection, PKZM0-4-T series with a rated current of 4A, is a reliable protection for electrical installations powering transformers. The device is designed to operate in circuits with a voltage of up to 690V AC and is characterized by a high short-circuit breaking capacity – up to 150kA at 400V, which guarantees effective protection against the effects of sudden overvoltages.

The breaker's construction is based on a solid, durable mechanism with an adjustable overload release (range 2.5-4A) and short-circuit release (84A), providing precise and fast response in the event of a failure. Additionally, a built-in trip indicator facilitates identification of the cause of operation, and the lack of a built-in undervoltage release and motor drive simplifies the design and increases reliability. Mounting on a TH rail is standard for this type of device, and the possibility of optional mounting on a DIN TH rail provides installation flexibility.

The PKZM0-4-T circuit breaker is a solution for both professional installers and end users. Screw terminals ensure a secure connection of wires, and compact dimensions (PKZM 0 construction size) allow for easy adaptation to existing switchboards. The device meets the requirements of IEC/EN 60947 standard, confirming its safety and compliance with applicable regulations. Protection class IP20 protects against accidental contact. Thanks to this, you can be sure that the installation is properly protected against overload and short circuit, which translates into long-term and trouble-free operation of devices powered by the transformer.

• Fast response: Adjustable short-circuit release with a value of 84A ensures a lightning-fast response in the event of a short circuit.
• Overload protection: Adjustable overload release (2.5-4A) protects the transformer from damage caused by excessive load.
• High short-circuit breaking capacity: 150kA capacity at 400V guarantees effective disconnection of the circuit in the event of a serious failure.
• TH rail mounting: Standard mounting simplifies and speeds up installation.
• Trip indicator: Facilitates identification of the cause of the breaker operation – overload or short circuit.
• Compliance with standards: Meets the requirements of IEC/EN 60947 standard, ensuring safety and reliability of operation.
• Compact dimensions: Allow for easy adaptation to existing switchboards and control cabinets.

This circuit breaker is primarily used to protect single-phase and three-phase transformers with a voltage of up to 690V AC, both in control circuits and in low-voltage installations of types SELV/PELV/FELV. It is an ideal solution for installers looking for reliable and effective transformer protection, as well as for end users who value the safety and long-term operation of their electrical devices.