Thermal Overload Relay, 3UA Series, Variant VZ2 - 3UA58002VZ2

🔹 Siemens Thermal Overload Relay – 3UA58002VZ2 (3UA Series, Variant VZ2)

🔹 Product Description

The Siemens 3UA58002VZ2 is a thermal overload relay from the Siemens 3UA Series, designed for reliable industrial motor protection in medium-to-heavy duty applications. It protects electric motors from overload, phase failure, and excessive heating, ensuring safe and continuous operation in demanding environments.

This VZ2 variant belongs to the 3UA5800 frame range, commonly used in industrial motor starter systems and MCC panels. It is typically mounted with Siemens contactor-based assemblies (such as 3TF series) and used in applications like pumps, compressors, conveyors, and automation machinery.

The relay operates on a bimetal thermal principle, where increased current generates heat, causing the bimetal strips to bend and trigger a precise trip action. This helps prevent motor damage and reduces downtime in industrial operations.

🔹 Key Features

• Genuine Siemens 3UA Series thermal overload relay
• Model: 3UA58002VZ2
• VZ2 variant for contactor-mounted motor protection systems
• Bimetal thermal overload protection technology
• Protection against overload and phase failure
• Suitable for industrial motor starter applications
• Adjustable current setting (typically higher mid-range of 3UA5800 series, approx. 32–50 A depending on configuration)
• High reliability and long service life
• Compatible with Siemens 3TF contactor systems
• Compact modular design for easy installation