ELR-7 / Cod. 3EL50WQ differential protection relay by Contrel

The Contrel ELR-7 (Cod. 3EL50WQ) is a differential protection relay engineered for precise electrical system monitoring. This flush-mounting unit is designed for a DIN 48x48mm cutout, making it suitable for compact control panel integration. It operates with a nominal auxiliary power supply of 110Vac/dc - 230V at 50-60Hz. The device features an adjustable threshold ranging from 0.025 to 25A and an adjustable delay from 0 to 5 seconds, allowing tailored response configurations for specific protection requirements. Equipped with a double exchange relay output, the ELR-7 is designed specifically for use with CT-1 series current sensors to detect and respond to differential currents effectively.

More Contrel part numbers

• 3EL71W ELR-91
• 3MH12P / Type: EMM-4h-p-485
• 3TC02P
• 3TC04P/TCS-4
• EMM-4H-p-485-A
• RI-R60

See all Contrel products

Frequently Asked Questions(FAQ):

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Where can I buy ELR-7 / Cod. 3EL50WQ by Contrel in the USA?

You can purchase ELR-7 / Cod. 3EL50WQ by Contrel from PAOParts LLC. We serve customers across the USA, offering competitive prices and reliable service.

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What is the price of the ELR-7 / Cod. 3EL50WQ?

Price and availability are quoted per request. Send the part number and the quantity you need through our quote request form and you will receive a written offer by e-mail.

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Who is the official distributor or seller of Contrel in the United States?

While we are not the official distributor or seller of Contrel in the United States, we source our products from reliable channels and offer you original Contrel equipment at competitive prices.

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How can I access ELR-7 / Cod. 3EL50WQ catalogs, user manuals, technical documents, and PDFs?

Ask for them in your quote request. We attach the datasheet, catalogue page or manual we hold for ELR-7 / Cod. 3EL50WQ to our written reply.

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Do you provide technical support for ELR-7 / Cod. 3EL50WQ?

While we do not offer direct technical support, we can assist you in contacting the manufacturer to ensure you receive the support you need.