About the 339-E-P1-G1-H-E-S-N-P-1E-D-N
Intro
The 339-EP1G1HESNP1EDN is a high-voltage motor protection relay from Multilin's 339 series. This relay was designed from a list of optional feature sets to fit a specific type of setup. In general, units like this were made to provide management, control, and protection to industrial motor systems. The control, diagnostics, and communications are also noteworthy features of this relay.
Advanced Functionality
The 339-EP1G1HESNP1EDN has 1A three-phase and ground current inputs. The voltage protections on this model are particularly advanced, with features like phase/positive sequence undervoltage, voltage phase reversal, and VT fuse failure among many others. The communications on this model include copper/fiber Ethernet functionality in addition to the standard front USB and rear RS485 ports. Additional supported protocols include IEC 60870-5-104, DNP3.0, and Modbus TCP/IP. The drawout case allows easier access to internal components for installation and maintenance.
Standard Functionality
The 339-EP1G1HESNP1EDN has standard inputs and outputs, which include 10 contact inputs and 7 outputs. Of these outputs, 2 are Form A and 5 are Form C. The current protections on this model are also standard, including features like undercurrent, current unbalance, and acceleration time just to name a few. The high-voltage power supply for this model is 110-250VDC/110-230VAC. This model was not coated in harsh environment conformal coating, so care should be taken as to the kind of environment this relay is placed in.