Siemens Industrial Controls 3UB81234DW2 Relay
The Siemens 3UB81234DW2 is a high-performance ESP200 solid state overload relay engineered for precise protection of three-phase motors. Running within an adjustable 5.5 to 22 Amp range, this A1 frame size unit eliminates the need for external heaters, significantly reducing enclosure heat and inventory management overhead. It features field-selectable trip classes (5, 10, 20, or 30), allowing technicians to calibrate protection based on specific starting conditions—from light loads to heavy-duty industrial cycles. This electronic relay provides critical phase loss protection, tripping in under three seconds to prevent catastrophic motor burnout. Designed for both direct and stand-alone mounting, it utilizes a manual/automatic reset configuration and includes built-in ground fault detection set at 60% of the motor current. The 3UB81234DW2 Siemens 3-phase relay is ambient-insensitive, ensuring consistent trip accuracy across a wide temperature spectrum, making it an essential component for reliable NEMA motor starter assemblies and industrial motor control applications.
Key Benefits- Selectable Trip Classes: Easily switch between Class 5, 10, 20, and 30 via DIP switches to match diverse load requirements.
- Phase Loss Protection: Rapid response (under 3 seconds) prevents motor damage during asymmetrical system failures or loss of a single phase.
- Zero Heater Requirement: Integrated solid-state sensing removes the cost and installation complexity of traditional thermal heaters.
- Self-Powered Design: The unit operates using internal power, requiring no external control voltage for logic processing.
- Enhanced Diagnostics: Visible trip indicators and ground fault detection provide immediate troubleshooting data for field contractors.
Can this relay replace traditional thermal overload blocks in an existing starter?
Yes, as part of the ESP200 series, this solid-state unit is designed for direct mounting to Siemens contactors or as a stand-alone protector with a separate bracket, provided the motor's full load amps (FLA) fall within the 5.5 to 22A range.
What happens if the motor loses one phase while running?
The 3UB81234DW2 features advanced circuitry that detects phase unbalance and phase loss, triggering a trip within 3 seconds to protect the windings from overheating.
How do I adjust the trip current for specific motor specifications?
The front-facing dial allows for precise adjustment by setting the arrow to the actual motor nameplate FLA within the 5.5 to 22 Amp scale.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Siemens Industrial Controls 3UB81234DW2 Relay
The Siemens 3UB81234DW2 is a high-performance ESP200 solid state overload relay engineered for precise protection of three-phase motors. Running within an adjustable 5.5 to 22 Amp range, this A1 frame size unit eliminates the need for external heaters, significantly reducing enclosure heat and inventory management overhead. It features field-selectable trip classes (5, 10, 20, or 30), allowing technicians to calibrate protection based on specific starting conditions—from light loads to heavy-duty industrial cycles. This electronic relay provides critical phase loss protection, tripping in under three seconds to prevent catastrophic motor burnout. Designed for both direct and stand-alone mounting, it utilizes a manual/automatic reset configuration and includes built-in ground fault detection set at 60% of the motor current. The 3UB81234DW2 Siemens 3-phase relay is ambient-insensitive, ensuring consistent trip accuracy across a wide temperature spectrum, making it an essential component for reliable NEMA motor starter assemblies and industrial motor control applications.
Key Benefits- Selectable Trip Classes: Easily switch between Class 5, 10, 20, and 30 via DIP switches to match diverse load requirements.
- Phase Loss Protection: Rapid response (under 3 seconds) prevents motor damage during asymmetrical system failures or loss of a single phase.
- Zero Heater Requirement: Integrated solid-state sensing removes the cost and installation complexity of traditional thermal heaters.
- Self-Powered Design: The unit operates using internal power, requiring no external control voltage for logic processing.
- Enhanced Diagnostics: Visible trip indicators and ground fault detection provide immediate troubleshooting data for field contractors.
Can this relay replace traditional thermal overload blocks in an existing starter?
Yes, as part of the ESP200 series, this solid-state unit is designed for direct mounting to Siemens contactors or as a stand-alone protector with a separate bracket, provided the motor's full load amps (FLA) fall within the 5.5 to 22A range.
What happens if the motor loses one phase while running?
The 3UB81234DW2 features advanced circuitry that detects phase unbalance and phase loss, triggering a trip within 3 seconds to protect the windings from overheating.
How do I adjust the trip current for specific motor specifications?
The front-facing dial allows for precise adjustment by setting the arrow to the actual motor nameplate FLA within the 5.5 to 22 Amp scale.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Siemens 3UB81234DW2 is a high-performance ESP200 solid state overload relay engineered for precise protection of three-phase motors. Running within an adjustable 5.5 to 22 Amp range, this A1 frame size unit eliminates the need for external heaters, significantly reducing enclosure heat and inventory management overhead. It features field-selectable trip classes (5, 10, 20, or 30), allowing technicians to calibrate protection based on specific starting conditions—from light loads to heavy-duty industrial cycles. This electronic relay provides critical phase loss protection, tripping in under three seconds to prevent catastrophic motor burnout. Designed for both direct and stand-alone mounting, it utilizes a manual/automatic reset configuration and includes built-in ground fault detection set at 60% of the motor current. The 3UB81234DW2 Siemens 3-phase relay is ambient-insensitive, ensuring consistent trip accuracy across a wide temperature spectrum, making it an essential component for reliable NEMA motor starter assemblies and industrial motor control applications.
Key Benefits- Selectable Trip Classes: Easily switch between Class 5, 10, 20, and 30 via DIP switches to match diverse load requirements.
- Phase Loss Protection: Rapid response (under 3 seconds) prevents motor damage during asymmetrical system failures or loss of a single phase.
- Zero Heater Requirement: Integrated solid-state sensing removes the cost and installation complexity of traditional thermal heaters.
- Self-Powered Design: The unit operates using internal power, requiring no external control voltage for logic processing.
- Enhanced Diagnostics: Visible trip indicators and ground fault detection provide immediate troubleshooting data for field contractors.
Can this relay replace traditional thermal overload blocks in an existing starter?
Yes, as part of the ESP200 series, this solid-state unit is designed for direct mounting to Siemens contactors or as a stand-alone protector with a separate bracket, provided the motor's full load amps (FLA) fall within the 5.5 to 22A range.
What happens if the motor loses one phase while running?
The 3UB81234DW2 features advanced circuitry that detects phase unbalance and phase loss, triggering a trip within 3 seconds to protect the windings from overheating.
How do I adjust the trip current for specific motor specifications?
The front-facing dial allows for precise adjustment by setting the arrow to the actual motor nameplate FLA within the 5.5 to 22 Amp scale.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
