American SEL-501 overcurrent relay
LEHIY item code: LH-SEL-0025
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This page helps you check American SEL-501 overcurrent relay 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 offer remote or on-site installation and commissioning services for the American SEL-501 overcurrent relay! We source directly from the American SEL manufacturer, ensuring genuine products.
The American SEL-501 is a dual-path universal overcurrent relay protection device, providing two complete protection systems, both configurable as one of five basic relays.
Key features of the American SEL-501 overcurrent relay include: Universal Protection – Provides simple and economical protection for transformers, circuit breakers, motors, capacitor banks, feeders, and other equipment, featuring two independent three-phase overcurrent relays in a compact package.
The relay offers multiple protection schemes that can be enabled through user settings. Application Versatility – Configure each side of the dual relays to suit different applications. For example, configure one side for feeder applications and the other for circuit breaker fault applications.
Complete Feeder Protection – Install two SEL-501/501-2 dual-path universal overcurrent/dual-path overcurrent relays in a double-high-voltage circuit breaker switchgear to protect two independent feeders. This provides primary and backup protection for each feeder.
Transformer Protection – Connect one end of the dual relay to the high-side CT of the transformer for transformer overload and overcurrent protection.
Connect the other end of the relay to the neutral CT on the star side of the delta-star transformer for sensitive internal ground fault protection and backup external fault protection.
We offer the American SEL-501 overcurrent relay, sourced directly from the USA. Compact Package: Two independent three-phase relays (X and Y) are housed in a compact package, simplifying the installation of two high-voltage switchgear by reducing wiring, enhancing protection, and simplifying setup.
Each relay can be configured for one of multiple relay applications.
Motor Protection Applications: Motor relay applications include a motor thermal model suitable for applications that do not require a resistance temperature device (RTD) input. The motor thermal model automatically switches between startup and operating conditions and requires only basic information about the motor.
Event Reporting Relays: Stores 20 event report summaries and 5 fifteen-cycle event reports. Event summaries and the last event report are stored in non-volatile memory.
The SEL-501 can be easily configured and controlled from the local front panel or using readily available terminal emulation software via the front or rear EIA-232 serial port ASCII/binary interface.
For more information on the SEL-501 from the USA, please contact our sales department.
Plain language sourcing guide for American SEL-501 overcurrent relay
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.
Take one clear photo of the front label. Take one photo of the side label. If the part has a cable, plug, port, seal, coil, or screen, take a photo of that area too.
Tell us the quantity you need. Tell us your country. Tell us the date when the plant needs the part. We can then check stock, lead time, safe packing, and the best shipping plan.
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.
For a replacement order, tell us what failed. Tell us where the part is used. Tell us if an equal model is acceptable. This makes the first answer more useful.
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.
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| Brand Name: | SEL | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
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American SEL-501 overcurrent relay
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.
- Share quantity, destination country, preferred shipping method, and target delivery date.
- 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.
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- Required quantity and target delivery date
- Nameplate photos, drawings, or old purchase records
- Voltage, signal range, dimensions, or accessory needs
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American SEL-501 overcurrent relay 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.
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