The Siemens 3UA68305G 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 400–630 A, it is suitable for high-current motor protection requirements.
The relay helps protect motors against sustained overload conditions, supporting safer motor operation and reducing the risk of damage caused by excessive current over extended periods. It is suitable for use in industrial motor control systems, control panels, and motor starter applications.
Siemens 3UA68305G thermal overload relay
Series: 3UA / 3UC
Current setting range: 400–630 A
Designed for motor overload protection
Suitable for industrial motor control applications
Suitable for motor starter and control-panel systems
Reliable thermal overload protection solution
Suitable for panel builders, OEMs, and industrial users
The Siemens 3UA68305G thermal overload relay is suitable for:
Industrial motor protection
Motor control panels
Motor starters
Motor control centers
Industrial machinery
Pumps and fans
Compressors
Conveyor systems
OEM control panels
Industrial automation applications
The Siemens thermal overload relay provides dependable protection against sustained motor overload conditions. Its 400–630 A adjustable current setting range allows the protection level to be matched to the requirements of high-current motor applications.
Using an appropriate overload relay helps reduce the risk of motor overheating and supports reliable operation 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 3UA68305G can be sourced through SB Smart with product assistance, availability information, and quotation support.
What is Siemens 3UA68305G?
The Siemens 3UA68305G is a thermal overload relay from the Siemens 3UA / 3UC series designed for motor overload protection.
What is the current setting range?
The specified current setting range is 400–630 A.
What is a thermal overload relay used for?
A thermal overload relay protects motors against sustained overcurrent or overload conditions that can cause excessive heating and potential motor damage.
Where can Siemens 3UA68305G be used?
It can be used in industrial motor control panels, motor starters, MCC systems, pumps, fans, compressors, conveyors, and industrial machinery.
Is the current setting adjustable?
Yes. The specified current setting range is 400–630 A, allowing the protection setting to be matched to the motor application.
Where can I buy Siemens 3UA68305G?
You can contact SB Smart for pricing, availability, and quotation assistance for the Siemens 3UA68305G thermal overload relay.
| Parameter | Specification |
|---|---|
| Product Series | Siemens 3UA Series |
| Model Number | 3UA68305G |
| Product Type | Thermal Overload Relay (Heavy Duty) |
| Variant | G |
| Protection Type | Overload + Phase Failure Protection |
| Operating Principle | Bimetal Thermal Mechanism |
| Mounting Type | MCC / Panel Mounted |
| Current Range | ~400 – 630 A (typical 3UA68 frame class) |
| Application | Heavy Industrial Motor Protection |
| Brand | Siemens |
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