🔹 Siemens Thermal Overload Relay – 3UA58002DZ1 (3UA Series, Variant DZ1)
🔹 Product Description
The Siemens 3UA58002DZ1 is a thermal overload relay from the Siemens 3UA Series, designed for reliable protection of electric motors against overload, phase failure, and overheating conditions. It is widely used in industrial motor control circuits where safe and stable operation is required.
This DZ1 variant belongs to the 3UA5800 frame range, typically used for medium-current applications. It is mounted with Siemens contactors (such as 3TF series) and plays a key role in motor starter assemblies by disconnecting the circuit when excessive current is detected.
The relay uses a bimetal thermal mechanism, ensuring precise trip action based on heat generated by motor current, making it highly reliable for industrial environments like pumps, compressors, conveyors, and automation systems.
🔹 Key Features
• Genuine Siemens 3UA Series thermal overload relay
• Model: 3UA58002DZ1
• DZ1 variant for contactor-mounted applications
• Thermal bimetallic protection system
• Protection against overload and phase failure
• Suitable for industrial motor starter panels
• Adjustable current setting (typically 20–32 A range)
• High reliability and long operational life
• Compatible with Siemens 3TF contactor systems
• Compact modular design for easy installation
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3UA Series |
| Model Number | 3UA58002DZ1 |
| Product Type | Thermal Overload Relay |
| Variant | DZ1 |
| Protection Type | Overload + Phase Failure Protection |
| Operating Principle | Bimetal Thermal Mechanism |
| Mounting Type | Contactor Mounted |
| Current Range | 20 – 32 A |
| Application | Motor Protection / Starter Assemblies |
| Brand | Siemens |
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