

American SEL-351A Microcomputer Protection Device
LEHIY item code: LH-SEL-0009
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This page helps you check American SEL-351A Microcomputer Protection Device before you ask for a quote.
Confirm the brand, model number, part number, and quantity. Share a clear nameplate photo when the old item has close variants.
LEHIY can check stock, lead time, packing, shipping documents, and safe replacement options for maintenance orders.
We can provide remote or on-site installation and commissioning services for the American SEL-351A microprocessor-based protection device! The American SEL-351A microprocessor-based protection device, product model: 0351A00323554XX, features built-in Ethernet and IEEE C37.118 synchronization phasors, offering an economical solution for overcurrent protection.
Easy-to-use feeder protection and innovative features (such as SEL's Best Choice Ground Directional Element logic and SELogic control equations) provide superior protection for utility and industrial power systems.
Key features of the SEL-351A microprocessor-based protection device include: Comprehensive protection—provides primary or backup overcurrent protection for distribution feeders through sensitive phase, negative sequence, zero sequence, and neutral overcurrent protection elements.
Easy relay access—accesses basic relay information on a standard Ethernet network via a built-in web server. Securely update firmware and view relay status, settings, and other read-only information on the local network.
Protection Scheme Security – Enhance system security by using load intrusion logic and setting bus overcurrent backup relays to near the maximum bus load current level.
Fault Location – Accurately estimate fault location and reduce total cost without expensive communication channels, dedicated transformers, pre-fault information, or long-distance visual fault inspections by line workers. Optimized Asset Utilization – Validate system load flow and fault models using instantaneous voltage angles from IEEE C37.118 synchronous phasors.
Increase stable system loads by reducing margin requirements using system state measurements. American SEL-351A Microprocessor-Based Protection Device: ---Integrates and automates substation equipment, even from multiple vendors, using the IEC 61850 communication protocol.
Provides primary or backup overcurrent protection for distribution systems using sensitive phase, negative sequence, zero sequence, and neutral overcurrent protection elements. ---Utilizes wire-like terminal configurations to leverage advanced technology, improving system protection performance and reducing total cost. This is a wireline upgrade of the popular SEL-251 relay.
---Sets sensitive phase and ground direction elements for accurate and safe fault detection. ---Enhanced sensitivity through two independent residual ground time overcurrent elements. ---Measure and record MW, MVAR, MWh, MVARh, PF, instantaneous and/or peak demand in non-volatile memory without external instrumentation.
---Provide multi-step load shedding schemes using underfrequency/overfrequency elements. ---Manage your relay settings using acSELerator QuickSet SEL-5030 software. ---Automatically collect relay event reports on your PC and manage them using a database using acSELerator Team SEL-5045 software. ---Use SynchroWAVe event software.
Our company has the advantage of supplying the American SEL-351A microprocessor-based protection device, sourced directly from the US manufacturer, and can provide manufacturer's certificate of origin, customs declaration, and other documents to verify the product.
The American SEL-351A, model number: 0351A00323554XX, is available in several models to meet different needs: SEL-551, SEL-551C, SEL-851, SEL-710, SEL-710-5, SEL-734, SEL-734P, SEL-735, SEL-751, SEL-751A, SEL-787, SEL-787-2-3-4, SEL-487E, SEL-387E, SEL-387,.
SEL-387A, SEL-587, SEL-2414, and SEL-587.
For more details on the American SEL-351A product, please contact our sales department.
Plain language sourcing guide for American SEL-351A Microcomputer Protection Device
Start with the full model name. Check the brand name. Check the part number. Check the code on the old unit. These small checks help you avoid a wrong order.
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If the exact model is no longer made, do not guess. Send the old model and the use case. LEHIY can compare close options and explain which choice is safer for repair work.
Use simple order notes. Write the model in one line. Write the quantity in one line. Write the delivery country in one line. This helps our team reply faster.
Check the old part before removal. Look at the label. Look at the connector. Look at the mounting size. Look at the voltage or pressure rating if it is shown.
Do not rely on a short nickname for a part. Many industrial items have close versions. A small suffix can change the plug, output, range, or software setting.
Ask for a stock check if the plant is stopped. Ask for a lead time if the order is planned. Ask for packing photos if the part is fragile or heavy.
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For repeat orders, send the last invoice, old label, or old packing photo. The same reference can help us match the correct product again.
For urgent service, keep the message simple. One model, one quantity, one photo, and one delivery target are enough for a fast first check.
| Brand Name: | SEL | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
What are your strengths?
Ans. LEHIY specializes in industrial automation and control components, offering fast sourcing, stable quality, and competitive prices for global customers.
What is your estimated delivery time?
Ans. Most items ship within 3-7 days. Customized or rare models may take 10-30 working days.
What are your primary product offerings?
Ans. Our main products include PLCs, sensors, valves, solenoid valves, actuators, power modules, transmitters, and complete industrial automation solutions.
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Ans. You can reach us anytime via Email, WhatsApp, LinkedIn, or our contact page. Our sales engineers respond quickly and provide technical support when needed.
What are your payment terms?
Ans. Standard terms are 50% TT in advance and 50% balance before delivery. We also support Alibaba Trade Assurance and L/C for qualified orders.
Feel free to Ask questions
American SEL-351A Microcomputer Protection Device
Send the brand, model, part number, quantity, nameplate photos, and application requirements. LEHIY will check availability, suitable alternatives, packing details, and delivery options before quoting.
For discontinued, temporarily unavailable, or configuration-sensitive items, our team can compare the requested model with close variants or compatible replacements for maintenance and spare parts planning.
Use this page as a practical sourcing note for engineers, buyers, and maintenance teams comparing automation components. Check the model name, brand, LEHIY code, application, and replacement requirements before sending an inquiry.
Short, clear information helps our team confirm availability faster and reduce back-and-forth communication during urgent maintenance projects.
- Confirm the complete model number and any suffix printed on the nameplate.
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- Include photos, drawings, old purchase records, or datasheets when compatible alternatives are acceptable.
- Ask for stock checking, replacement comparison, packing details, and export documentation before ordering.
Useful details for a faster quote
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- Voltage, signal range, dimensions, or accessory needs
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American SEL-351A Microcomputer Protection Device verification notes
Please send the full model number, quantity, target delivery date, and nameplate photos. These details help us check the requested product or a close replacement.
LEHIY reviews product name, part number, series, label information, and application requirements before shipment.
If the original model is discontinued or supplied with different accessories, we can explain practical differences before quoting.
For repeat purchasing, we can help organize related models, replacement parts, shipment schedules, and clear communication for your team.
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