RM35 TF multi-function three-phase network control relays Schneider Electric RM35 TF measurement and control relays for 3 phase supplies, monitor correct sequences of phases L1, L2 and L3. It also monitors total loss of one or more phases, asymmetry, and over and undervoltage with independent adjustments. Checks its own power supply Clear hinged front cover Potentiometer selects voltages between phases LED display of output status DIN Rail mounting Approvals UL, CSA, GL, C-Tick, GOST Standards NF EN 60255-6 and IEC 60255-6 Schneider Electric Voltage, Current, Phase & Motor Protection