🔹 Siemens Thermal Overload Relay – 3UA58002DZ2 (3UA Series, Variant DZ2)
🔹 Product Description
The Siemens 3UA58002DZ2 is a thermal overload relay from the Siemens 3UA Series, designed to provide dependable motor protection against overload, phase failure, and overheating conditions in industrial electrical systems.
This DZ2 variant is part of the 3UA5800 frame range, commonly used for medium-current motor applications. It is typically mounted with Siemens contactors (such as 3TF series) and is widely used in motor starter assemblies for pumps, compressors, conveyors, and automation machinery.
The relay operates on a bimetal thermal principle, where heat generated by motor current causes precise tripping action, ensuring safe shutdown during abnormal operating conditions and protecting motors from damage.
🔹 Key Features
• Genuine Siemens 3UA Series thermal overload relay
• Model: 3UA58002DZ2
• DZ2 variant for contactor-mounted systems
• Bimetal thermal overload protection technology
• Protection against overload and phase failure
• Suitable for industrial motor starter applications
• Adjustable current setting (typically 25–40 A range)
• High reliability and consistent performance
• Designed for Siemens 3TF contactor compatibility
• Compact and modular installation design
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3UA Series |
| Model Number | 3UA58002DZ2 |
| Product Type | Thermal Overload Relay |
| Variant | DZ2 |
| Protection Type | Overload + Phase Failure Protection |
| Operating Principle | Bimetal Thermal Mechanism |
| Mounting Type | Contactor Mounted |
| Current Range | 25 – 40 A |
| Application | Motor Protection / Starter Panels |
| Brand | Siemens |
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