The Dorin H503CS is a semi-hermetic reciprocating compressor engineered to meet the demanding needs of low-temperature (negative) refrigeration systems. It is ideal for use in large-scale cold storage facilities, industrial freezers, and deep-freeze distribution centers.

General Description
As part of Dorin’s high-capacity H series, the H503CS combines powerful performance with long-term durability. Its semi-hermetic construction supports ease of maintenance and ensures reliable operation under continuous low-temperature loads.

Key Specifications

• Compressor Type: Semi-hermetic, reciprocating

• Application: Low-temperature (negative) refrigeration

• Cooling Capacity: Approx. 22 to 30 HP (depending on refrigerant and conditions)

• Displacement: Approx. 50.3 m³/h

• Voltage: 380–420V / 3Ph / 50Hz

• Refrigerants: R-404A, R-507, R-452A, and similar low-temp refrigerants

• Oil Type: POE (polyolester)

• Motor Protection: Built-in thermal protection

• Configuration: Suitable for heavy-duty industrial refrigeration systems

Conclusion
The Dorin H503CS delivers efficient and robust performance, making it a trusted solution for applications that demand consistent, high-capacity cooling at negative temperatures.