The Siemens Thermal Overload Relay – 3UA58008YZ1 is a dependable motor protection relay designed to safeguard electric motors from overload conditions and phase failure in industrial applications. Part of the trusted Siemens 3UA / 3UC series, this thermal overload relay helps prevent motor damage by detecting excessive current and disconnecting the motor before overheating occurs. It is suitable for use with compatible Siemens contactors and is widely used in motor starter assemblies for reliable motor protection.
The 3UA58008YZ1 thermal overload relay is commonly installed in motor control centers (MCC), DOL starters, star-delta starters, industrial control panels, pump control systems, compressors, conveyors, HVAC systems, machine tools, and manufacturing plants. It provides dependable overload protection, improves motor reliability, minimizes unexpected downtime, and extends the service life of electrical equipment.
Designed with Siemens' proven engineering standards, this motor overload relay offers reliable tripping performance, easy installation, and long operational life. It is trusted by panel builders, OEMs, electrical contractors, maintenance engineers, and industrial users for protecting three-phase motors in demanding industrial environments.
At SB Smart, we supply genuine Siemens Thermal Overload Relays, motor protection devices, and industrial electrical products with competitive pricing, expert technical support, bulk order assistance, and fast PAN India delivery.
Genuine Siemens 3UA / 3UC Series Thermal Overload Relay
Reliable motor overload protection
Helps protect motors from overheating
Supports phase-loss sensitive motor protection
Compatible with Siemens motor starters and contactors
Accurate and dependable tripping performance
Easy installation and maintenance
Durable industrial-grade construction
Long operational service life
Suitable for industrial motor control applications
Direct-On-Line (DOL) Starters
Star-Delta Starters
Motor Control Centers (MCC)
Industrial Control Panels
Pump Control Systems
Compressor Panels
Conveyor Systems
Machine Tools
HVAC Systems
Manufacturing Plants
Water Treatment Plants
Food Processing Industry
Textile Industry
Cement Plants
Steel Plants
Protects motors against overload conditions
Helps reduce motor failures and downtime
Improves equipment reliability
Extends motor service life
Enhances operational safety
Reduces maintenance costs
Reliable performance in industrial environments
Easy integration with Siemens motor starters
Cost-effective motor protection solution
100% Genuine Siemens Products
Competitive Industrial Pricing
Expert Technical Support
Bulk Order Assistance
Fast PAN India Delivery
Secure Packaging
Trusted Industrial Electrical Supplier
GST Invoice Available
Responsive Customer Support
It is used to protect three-phase electric motors from overload conditions and overheating, helping improve motor safety and reliability.
It is commonly used in DOL starters, star-delta starters, MCC panels, industrial control panels, pump systems, compressors, conveyors, and other motor control applications.
Yes. It is designed for demanding industrial environments including manufacturing, water treatment, HVAC, cement, steel, and process industries.
A thermal overload relay helps prevent motor damage caused by excessive current and overheating, reducing maintenance costs and improving equipment life.
Yes. SB Smart supplies genuine Siemens thermal overload relays with competitive pricing, technical support, and fast PAN India delivery.
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Series | SICOP 3UA |
| Model Number | 3UA5800-8YZ1 |
| Product Type | Thermal Overload Relay |
| Current Setting Range | 70–95 A |
| Trip Class | Class 10 |
| Motor Protection | Overload & Phase Failure |
| Auxiliary Contacts | 1 NO + 1 NC |
| Reset Function | Manual / Automatic |
| Mounting | Direct mounting on compatible contactor |
| Compatible Contactors | Siemens 3TF46 / 3TF47 |
| Rated Insulation Voltage (Ui) | 690 V |
| Rated Frequency | 50/60 Hz |
| Connection Type | Screw Terminal |
| Ambient Operating Temperature | -25°C to +55°C |
| Standards | IEC 60947-4-1 |
| Application | Thermal overload protection for AC motors |
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