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Dear SupplierThe requested protection relay is a replacement of existing MERLIN GERIN SEPAM15 with the following protections 1-Three phase over current 2-Three phase over load 3-Zero sequence over current earth leak 4-Under voltage phase 3.1 5-Under voltage phase 1,2 6-Under voltage phase 2.37-Number of starts cold / hot8-Thermal overload9-Start time ST - locking time LT10-Unbalance11-Negative sequence12- deferential protectionAnd the communication protocol of the existing SEPAM is MODBUS but other protocols are accepted the 5 SEPAMS are on motors I think SEPAM M40 or equivalents is the best solution because we tried SEPAM T40 before and it’s a good predominance