The Siemens 3UA58305B is a thermal overload relay from the Siemens 3UA / 3UC series, designed for reliable motor overload protection in industrial electrical and motor control applications. With a current setting range of 70–95 A, it is suitable for motor protection applications requiring adjustable thermal overload protection.
The relay helps protect motors against sustained overload conditions that can cause excessive heating and potential motor damage. It is suitable for use in motor starters, industrial control panels, motor control centers, and various motor-driven equipment.
Siemens 3UA58305B thermal overload relay
Series: 3UA / 3UC
Current setting range: 70–95 A
Designed for motor overload protection
Adjustable thermal protection
Suitable for industrial motor applications
Suitable for motor starter systems
Designed for industrial control panels
Suitable for OEMs, panel builders, and system integrators
The Siemens 3UA58305B thermal overload relay is suitable for:
Industrial motor protection
Motor control panels
Motor starters
Motor control centers
Pumps and fans
Compressors
Conveyor systems
Industrial machinery
OEM control panels
Industrial automation applications
The Siemens thermal overload relay provides dependable protection against sustained motor overload conditions. Its 70–95 A adjustable current setting range allows the protection level to be matched to the requirements of the connected motor.
By helping prevent prolonged overload operation, the relay supports safer motor operation, reduces the risk of excessive heating, and contributes to reliable performance of industrial motor-driven equipment.
SB Smart supplies genuine Siemens thermal overload relays, 3UA/3UC motor protection products, SIRIUS components, contactors, motor starters, and industrial automation products for panel builders, OEMs, electrical contractors, system integrators, and industrial customers.
The Siemens 3UA58305B can be sourced through SB Smart with product assistance, availability information, and quotation support.
What is Siemens 3UA58305B?
The Siemens 3UA58305B is a thermal overload relay from the Siemens 3UA / 3UC series, designed for motor overload protection.
What is the current setting range of 3UA58305B?
The specified current setting range is 70–95 A.
What is a thermal overload relay used for?
A thermal overload relay helps protect motors against sustained overload conditions that can cause excessive heating and potential motor damage.
Where can Siemens 3UA58305B be used?
It can be used in industrial motor control panels, motor starters, MCC systems, pumps, fans, compressors, conveyors, and industrial machinery.
Can the current setting be adjusted?
Yes. The specified current setting range is 70–95 A, allowing the overload protection level to be matched to the motor application.
Where can I buy Siemens 3UA58305B?
You can contact SB Smart for pricing, availability, and quotation assistance for the Siemens 3UA58305B thermal overload relay.
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3UA Series |
| Model Number | 3UA58305B |
| Product Type | Thermal Overload Relay |
| Variant | B |
| Protection Type | Overload + Phase Failure Protection |
| Operating Principle | Bimetal Thermal Mechanism |
| Mounting Type | Panel / Motor Starter System |
| Current Range | ~25 – 40 A (typical 3UA5830 B variant range) |
| Application | Motor Protection / Industrial Control Panels |
| Brand | Siemens |
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