A motor protector for an electric submersible pump comprising: a housing; a rotatable shaft disposed within the housing; a plurality of radial bearings (308,310) coupled to the rotatable shaft, for supporting the rotatable shaft against the housing; a thrust bearing coupled to the rotatable shaft, for supporting the rotatable shaft against the housing; a shaft seal coupled to the rotatable shaft, and configured to seal a first portion from a second portion of the housing; and an isolation chamber, attached substantially lateral to the housing and configured to separate a first fluid and a second fluid received via the housing under influence of gravity, wherein the first fluid has a higher density compared to the second fluid, wherein the isolation chamber is coupled substantially orthogonal to the housing when the housing is disposed horizontally on a seabed or the isolation chamber is coupled to the housing such that the isolation chamber is disposed along a vertical direction substantially with respect to the seabed when the housing is disposed at an inclination from the seabed; a first inlet coupled to the housing, for allowing a flow of the first fluid into the housing; a second inlet extending from the housing to the isolation chamber, for allowing the flow of the first fluid from the housing to the isolation chamber, the second inlet having a discharge in a lower portion of the isolation chamber; and a third inlet extending from the housing to the isolation chamber, for allowing the flow of the second fluid from the housing to the isolation chamber, the third inlet having a discharge in an upper portion of the isolation chamber and wherein the second fluid contacts the first fluid at an interface layer within the isolation chamber between the discharge of the third inlet and the discharge of the second inlet, wherein the isolation chamber comprises one labyrinth chamber. a housing; a rotatable shaft disposed within the housing; a plurality of radial bearings (308,310) coupled to the rotatable shaft, for supporting the rotatable shaft against the housing; a thrust bearing coupled to the rotatable shaft, for supporting the rotatable shaft against the housing; a shaft seal coupled to the rotatable shaft, and configured to seal a first portion from a second portion of the housing; and an isolation chamber, attached substantially lateral to the housing and configured to separate a first fluid and a second fluid received via the housing under influence of gravity, wherein the first fluid has a higher density compared to the second fluid, wherein the isolation chamber is coupled substantially orthogonal to the housing when the housing is disposed horizontally on a seabed or the isolation chamber is coupled to the housing such that the isolation chamber is disposed along a vertical direction substantially with respect to the seabed when the housing is disposed at an inclination from the seabed; a first inlet coupled to the housing, for allowing a flow of the first fluid into the housing; a second inlet extending from the housing to the isolation chamber, for allowing the flow of the first fluid from the housing to the isolation chamber, the second inlet having a discharge in a lower portion of the isolation chamber; and a third inlet extending from the housing to the isolation chamber, for allowing the flow of the second fluid from the housing to the isolation chamber, the third inlet having a discharge in an upper portion of the isolation chamber and wherein the second fluid contacts the first fluid at an interface layer within the isolation chamber between the discharge of the third inlet and the discharge of the second inlet, wherein the isolation chamber comprises one labyrinth chamber.