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Schweitzer Engineering Laboratories SEL-311C. Apply three-pole tripping logic, or select the SEL-311C-3 for single-pole tripping. IEEE C37.118 compliant synchrophasors are included for improved situational awareness.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.