Circuit breaker for transformer protection 2.5A PKZM0-2,5-T 088913

Transformer protection switch – reliable installation protection

This three-pole transformer protective switch, designated PKZM0-2,5-T, is a key element ensuring the safety and reliability of electrical installations. Designed to work with transformers up to 690V AC, it effectively protects against overloads and short circuits. Its construction based on proven Eaton technology guarantees a long service life and minimizes the risk of failure.

This switch is particularly useful in circuits powering transformers, where high inrush currents occur. Characteristic C allows it to react more slowly to short current surges, therefore it tolerates starting devices with a motor well. The rated continuous current of 2.5A and the adjustable overload release range (1.6-2.5A) allow for precise adaptation to the specifics of the protected installation. The short-circuit breaking capacity of 150kA at 400V ensures effective protection of the circuit against the effects of sudden overvoltages.

Construction and mounting

The PKZM0-2,5-T switch is characterized by a solid construction and easy mounting on a TH rail. Screw terminals provide secure and durable connection of wires. The IP20 degree of protection protects against accidental contact and environmental influences. The compact dimensions of the device facilitate its installation even in limited spaces of control cabinets or switchboards. Additionally, the presence of a trip indicator allows for quick identification of the device status and causes of any failure.

Applications and benefits

• Transformer protection: dedicated to protecting single-phase and three-phase transformers with a voltage of up to 690V AC
• Wide range of applications: ideal for use in control circuits, switchboards and low-voltage installations of the SELV/PELV/FELV type
• Current adjustment: possibility of precise setting of the overload release range (1.6-2.5A)
• High short-circuit breaking capacity: 150kA at 400V guarantees effective protection against the effects of short circuits
• Solid construction: ensures long-lasting and reliable operation in various environmental conditions
• Easy mounting: possibility of mounting on a TH rail and secure connection of wires using screw terminals
• Trip indicator: facilitates identification of the device status and causes of any failure
• Compliance with standards: meets the requirements of IEC/EN 60947 and VDE 0660 part 102 standards, which confirms its safety and quality.