Thermal Overload Relay, 3UA Series, Variant EZ1 - 3UA58002EZ1

🔹 Siemens Thermal Overload Relay – 3UA58002EZ1 (3UA Series, Variant EZ1)

🔹 Product Description

The Siemens 3UA58002EZ1 is a thermal overload relay from the Siemens 3UA Series, designed for reliable motor protection in industrial motor starter and control applications. It provides essential protection against overload, phase failure, and overheating, ensuring safe operation of electric motors in demanding environments.

This EZ1 variant belongs to the 3UA5800 frame range, typically used for medium to higher current motor applications. It is commonly installed with Siemens contactors (such as 3TF series) and used in industrial automation systems, pumps, compressors, conveyors, and heavy-duty machinery.

The relay operates on a bimetal thermal mechanism, where heat generated by excess current causes precise tripping, disconnecting the motor to prevent damage and downtime.

🔹 Key Features

• Genuine Siemens 3UA Series thermal overload relay
• Model: 3UA58002EZ1
• EZ1 variant for contactor-mounted systems
• Bimetal thermal protection technology
• Protection against overload and phase failure
• Suitable for industrial motor starter applications
• Adjustable current setting (typically around 25–40 A range)
• High reliability and long operational life
• Compatible with Siemens 3TF contactor systems
• Compact modular design for easy installation