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

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

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

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