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View and Download Sel 751A instruction manual online. Feeder Protection Relay. 751A pdf manual download. The SEL-751A Feeder Protection Relay is for industrial and utility feeder protection with flexible I/O options, easy retrofit, and fast setup and Refer to the SEL-751A manual for additional details and other options. Wire sizes for connections are dictated by the terminal blocks and expected load Learn how to establish communications with the SEL-751 feeder protection relay. Learn more about The SEL-751A Feeder Protection Relay provides an excep- The SEL-751A with optional voltage inputs provides two the instruction manual. Power Supply. SEL-751A. Feeder Protection Relay. Instruction Manual. *PM751A-01-NB* Use of this equipment in a manner other than specified in this manual can. Featured. Instruction Manual. Data Sheet The SEL-751A Feeder Protection Relay provides an exceptional combination of for a four-wire wye connection is also available in the instruction manual. Appendix A: Firmware, ICD, and Manual Versions R.Instruction Manual Table 1.1 AG2011-01: Using the SEL-751 and SEL-751A for Arc-Flash Detection,.