Ejector refrigeration circuit with: a high pressure ejector circuit comprising in the direction of flow of a circulating refrigerant: a heat rejecting heat exchanger/gas cooler having an inlet side and an outlet side ; at least two variable ejectors with different capacities connected in parallel, a primary high pressure input port , a secondary low pressure input port and an output port ; wherein the primary high pressure input ports of the at least two variable ejectors are fluidly connected to the outlet side of the heat rejecting heat exchanger/gas cooler ; a receiver , having an inlet , a liquid outlet , and a gas outlet , wherein the inlet is fluidly connected to the output ports of the at least two variable ejectors , wherein each of the variable ejectors comprises a controllable motive nozzle including a needle valve having a needle and an actuator , the actuator being configured for shifting a tip portion of the needle into and out of a throat section of the motive nozzle to modulate flow through the motive nozzle and, in turn, the respective ejector overall; at least one compressor having an inlet side and an outlet side , the inlet side of the at least one compressor being fluidly connected to the gas outlet of the receiver , and the outlet side of the at least one compressor being fluidly connected to the inlet side of the heat rejecting heat exchanger/gas cooler ; and a refrigerating evaporator flowpath comprising in the direction of flow of the circulating refrigerant: at least one refrigeration expansion device having an inlet side , fluidly connected to the liquid outlet of the receiver , and an outlet side ; at least one refrigeration evaporator fluidly connected between the outlet side of the at least one refrigeration expansion device and the secondary low pressure input ports of the at least two variable ejectors . a heat rejecting heat exchanger/gas cooler having an inlet side and an outlet side ; at least two variable ejectors with different capacities connected in parallel, a primary high pressure input port , a secondary low pressure input port and an output port ; wherein the primary high pressure input ports of the at least two variable ejectors are fluidly connected to the outlet side of the heat rejecting heat exchanger/gas cooler ; a receiver , having an inlet , a liquid outlet , and a gas outlet , wherein the inlet is fluidly connected to the output ports of the at least two variable ejectors , wherein each of the variable ejectors comprises a controllable motive nozzle including a needle valve having a needle and an actuator , the actuator being configured for shifting a tip portion of the needle into and out of a throat section of the motive nozzle to modulate flow through the motive nozzle and, in turn, the respective ejector overall; at least one compressor having an inlet side and an outlet side , the inlet side of the at least one compressor being fluidly connected to the gas outlet of the receiver , and the outlet side of the at least one compressor being fluidly connected to the inlet side of the heat rejecting heat exchanger/gas cooler ; and a refrigerating evaporator flowpath comprising in the direction of flow of the circulating refrigerant: at least one refrigeration expansion device having an inlet side , fluidly connected to the liquid outlet of the receiver , and an outlet side ; at least one refrigeration evaporator fluidly connected between the outlet side of the at least one refrigeration expansion device and the secondary low pressure input ports of the at least two variable ejectors . at least one refrigeration expansion device having an inlet side , fluidly connected to the liquid outlet of the receiver , and an outlet side ; at least one refrigeration evaporator fluidly connected between the outlet side of the at least one refrigeration expansion device and the secondary low pressure input ports of the at least two variable ejectors . <EOS>