Siemens Industrial Controls 3UB81134BB2 Relay
The Siemens 3UB81134BB2 is a high-performance ESP200 solid state overload relay designed for precise motor protection in industrial HVACR applications. Engineered for 3-phase systems, this Size A relay features an adjustable current range of 0.75 to 3.4 Amps, eliminating the need for separate heaters and reducing inventory costs. Its advanced electronic sensing provides superior accuracy compared to traditional bimetallic relays, with selectable trip classes (5, 10, 20, or 30) to accommodate varying starting conditions. The unit includes integrated phase loss protection and ground fault detection, ensuring comprehensive system safety. Designed for a direct mounting configuration or stand-alone installation, it utilizes screw terminals for secure wiring. With a 1NO-1NC contact form and a wide operating temperature range, this adjustable overload relay is built to withstand demanding environments while maintaining a 1% repeat accuracy.
Key Benefits:- Field-Adjustable Trip Class: DIP switch settings allow for classes 5, 10, 20, and 30 to match specific motor torque and starting requirements.
- Integrated Protection Suite: High-speed phase loss protection (trips in under 3 seconds) and ground fault sensing safeguard equipment from burnout.
- Thermal Memory: Prevents premature motor restarts while windings are still at elevated temperatures, extending equipment life.
- Universal Compatibility: Works seamlessly with Siemens NEMA and Sirius contactors, offering a compact motor protection solution.
Does this relay require external heaters?
No, as a solid state overload relay, the 0.75-3.4A range is handled internally via the adjustable dial, saving space and reducing setup time.
Can I use this for single-phase motors?
While optimized for 3-phase polyphase motors, this relay can be used for single-phase applications by wiring all three poles in series to ensure proper current sensing.
Is the reset function automatic or manual?
The 3UB81134BB2 features a flexible reset mechanism that can be set for manual or automatic operation, depending on your system's safety protocol.
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.
Original: $192.28
-65%$192.28
$67.30Siemens Industrial Controls 3UB81134BB2 Relay
The Siemens 3UB81134BB2 is a high-performance ESP200 solid state overload relay designed for precise motor protection in industrial HVACR applications. Engineered for 3-phase systems, this Size A relay features an adjustable current range of 0.75 to 3.4 Amps, eliminating the need for separate heaters and reducing inventory costs. Its advanced electronic sensing provides superior accuracy compared to traditional bimetallic relays, with selectable trip classes (5, 10, 20, or 30) to accommodate varying starting conditions. The unit includes integrated phase loss protection and ground fault detection, ensuring comprehensive system safety. Designed for a direct mounting configuration or stand-alone installation, it utilizes screw terminals for secure wiring. With a 1NO-1NC contact form and a wide operating temperature range, this adjustable overload relay is built to withstand demanding environments while maintaining a 1% repeat accuracy.
Key Benefits:- Field-Adjustable Trip Class: DIP switch settings allow for classes 5, 10, 20, and 30 to match specific motor torque and starting requirements.
- Integrated Protection Suite: High-speed phase loss protection (trips in under 3 seconds) and ground fault sensing safeguard equipment from burnout.
- Thermal Memory: Prevents premature motor restarts while windings are still at elevated temperatures, extending equipment life.
- Universal Compatibility: Works seamlessly with Siemens NEMA and Sirius contactors, offering a compact motor protection solution.
Does this relay require external heaters?
No, as a solid state overload relay, the 0.75-3.4A range is handled internally via the adjustable dial, saving space and reducing setup time.
Can I use this for single-phase motors?
While optimized for 3-phase polyphase motors, this relay can be used for single-phase applications by wiring all three poles in series to ensure proper current sensing.
Is the reset function automatic or manual?
The 3UB81134BB2 features a flexible reset mechanism that can be set for manual or automatic operation, depending on your system's safety protocol.
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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Shipping & Returns
Description
The Siemens 3UB81134BB2 is a high-performance ESP200 solid state overload relay designed for precise motor protection in industrial HVACR applications. Engineered for 3-phase systems, this Size A relay features an adjustable current range of 0.75 to 3.4 Amps, eliminating the need for separate heaters and reducing inventory costs. Its advanced electronic sensing provides superior accuracy compared to traditional bimetallic relays, with selectable trip classes (5, 10, 20, or 30) to accommodate varying starting conditions. The unit includes integrated phase loss protection and ground fault detection, ensuring comprehensive system safety. Designed for a direct mounting configuration or stand-alone installation, it utilizes screw terminals for secure wiring. With a 1NO-1NC contact form and a wide operating temperature range, this adjustable overload relay is built to withstand demanding environments while maintaining a 1% repeat accuracy.
Key Benefits:- Field-Adjustable Trip Class: DIP switch settings allow for classes 5, 10, 20, and 30 to match specific motor torque and starting requirements.
- Integrated Protection Suite: High-speed phase loss protection (trips in under 3 seconds) and ground fault sensing safeguard equipment from burnout.
- Thermal Memory: Prevents premature motor restarts while windings are still at elevated temperatures, extending equipment life.
- Universal Compatibility: Works seamlessly with Siemens NEMA and Sirius contactors, offering a compact motor protection solution.
Does this relay require external heaters?
No, as a solid state overload relay, the 0.75-3.4A range is handled internally via the adjustable dial, saving space and reducing setup time.
Can I use this for single-phase motors?
While optimized for 3-phase polyphase motors, this relay can be used for single-phase applications by wiring all three poles in series to ensure proper current sensing.
Is the reset function automatic or manual?
The 3UB81134BB2 features a flexible reset mechanism that can be set for manual or automatic operation, depending on your system's safety protocol.
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.
