Refcomp SP4H3500 SP4H350E Semi Sealed Reciprocating Compressor

The SP4H3500(SP4H350E) semi sealed reciprocating compressor features an INT69B2 electronic motor protection module operating on a standard 230V/1Ph/50-60Hz supply. Integrated with PTC thermistors embedded directly within the motor windings, the module provides continuous thermal monitoring. It cuts off control circuits instantly upon detecting phase failure, electrical overload, or excessive coil temperatures under continuous high-load operations.

To safeguard internal drive components and cylinder valves, this semi sealed reciprocating compressor is fitted with an integrated high-density suction strainer at the gas inlet. Positioned on the outer end of the main body, the filter screens out solid particulates and system scale from incoming refrigerant while allowing easy access for maintenance and routine cleaning without housing disassembly.

Built to handle variable thermal loads in high-capacity refrigeration systems, this 4-cylinder semi sealed reciprocating compressor offers step capacity regulation at 100% and 50% displacement. System controllers can automatically engage step regulation during low-demand periods, reducing power consumption and preventing unnecessary compressor cycling.