HGX56e/850-4 Bock semi-hermetic reciprocating compressor. Capacity 73,8 m3/h, 380-420 V/50 Hz, possibility of regulation 30-70 Hz (depending on operating envelope), suction 54 mm, discharge 35 mm, maximum current 32,6 A, oil fill BOCKlub E55, 3,2L. Included with this item (code 097G1783) are the mount parts, INT69G, oil heater and Delta PII.