The Siemens 3US5000-1A8K is a reliable bimetal thermal overload relay designed for dependable three-phase motor protection in industrial motor control applications. With an adjustable current range of 1.0–1.6A, this Siemens overload relay helps protect motors against sustained overload conditions that can cause excessive heating and premature motor damage.
Designed in size S0 with a Class 10 tripping characteristic, the relay is suitable for motors with standard starting conditions. Its bimetal thermal protection principle responds to prolonged overcurrent and helps protect the motor by operating the associated control circuit when an overload persists.
The Siemens 3US5000-1A8K is suitable for motor starters, industrial control panels, pumps, fans, conveyors, machinery, and other motor-driven equipment requiring dependable thermal overload protection.
Siemens 3US5000-1A8K bimetal overload relay
Adjustable 1.0–1.6A current range
Size S0 design
Class 10 trip characteristic
Bimetal thermal overload protection
Designed for three-phase motor protection
Suitable for standard motor starting applications
Suitable for industrial motor control panels
Compact solution for compatible motor starter assemblies
Ideal for OEMs, panel builders, and electrical contractors
The Siemens 3US5000-1A8K overload relay is suitable for:
Three-phase motor protection
Industrial motor starters
Motor control panels
Motor control centers
Pump and fan systems
Conveyor applications
Industrial machinery
Manufacturing equipment
OEM control panels
Industrial automation systems
The Siemens bimetal overload relay provides dependable thermal protection against prolonged overload conditions. Its adjustable 1.0–1.6A range allows the relay to be set according to the motor's operating current.
The Class 10 trip characteristic makes it suitable for general-purpose motors with normal starting conditions. The compact S0 size supports efficient integration into compatible motor starter and control panel arrangements.
SB Smart supplies genuine Siemens overload relays, motor protection devices, contactors, SIRIUS components, and industrial automation products for panel builders, OEMs, electrical contractors, system integrators, and industrial customers.
The Siemens 3US5000-1A8K can be sourced through SB Smart with product assistance, availability information, and quotation support for your motor protection requirements.
What is Siemens 3US5000-1A8K?
The Siemens 3US5000-1A8K is a bimetal thermal overload relay designed for three-phase motor protection applications.
What is the current range of Siemens 3US5000-1A8K?
The relay has an adjustable current range of 1.0–1.6A.
What does Class 10 mean in an overload relay?
Class 10 defines the relay's trip characteristic and is commonly suitable for motors with normal starting conditions.
What is S0 size?
S0 refers to the physical size/frame category of the compatible motor starter and overload relay arrangement.
What is a bimetal overload relay used for?
A bimetal overload relay protects motors against sustained overcurrent by responding to the heat generated by excessive current and activating the protection mechanism when the overload persists.
Where can Siemens 3US5000-1A8K be used?
It can be used in industrial motor starters, control panels, pumps, fans, conveyors, machinery, manufacturing equipment, and other motor protection applications.
Where can I buy Siemens 3US5000-1A8K?
You can contact SB Smart for pricing, availability, and quotation assistance for the Siemens 3US5000-1A8K bimetal overload relay.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3US |
| Model Number | 3US5000-1A8K |
| Product Type | Thermal Overload Relay |
| Protection Type | Overload + Phase Failure Protection |
| Operating Principle | Bimetal Thermal Mechanism |
| Current Range | ~6.3 – 10 A (typical class for 3US5000 variants) |
| Mounting Type | Contactor Mounted |
| Application | Motor Protection / Industrial Control Panels |
| Brand | Siemens |
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