Copeland RST55C1E-CAV-959 is a hermetic reciprocating compressor designed for extended medium temperature refrigeration applications requiring 208 – 230V single-phase, 60 Hz power and nominal 5,500 BTU/hr capacity.
 
Built for dependable cooling performance, this compressor supports efficient refrigerant compression, reliable system operation, and consistent service replacement value in compatible refrigeration equipment.
 
This model uses polyolester (POE) oil, features a capacitor start capacitor run motor, and is compatible with R-404A, R-407C, R-448A, R-449A, and R-22 refrigerants.  Connection details include a 3/8-inch suction stub and ¼-inch discharge stub, and the unit is rated at 3/4 HP.
 
As a sealed compressor, it helps protect internal components while delivering stable performance for commercial refrigeration repair and replacement needs.
 
This model directly replaces RKA5490EXD compressor applications where specifications match, making it a practical choice for systems requiring matching electrical, refrigerant, and capacity specifications.