HGX44e/665-4 S Bock semi-hermetic reciprocating compressor. Capacity 57.7 m3/h, 380-420 V/50 Hz, possibility of regulation 30-70 Hz (depending on operating envelope), suction 42 mm, discharge 28 mm, maximum current 30 A, oil fill BOCKlub E55, 2.7L. Included with this item (code 097G1853) are the mount parts, INT69G, oil heater and Delta PII.