Air-cooled silent twin-cylinder diesel generator Stahlzet SZ20KW diesel generator – 20 kVA | 230/400V | Phase V Powerful, quiet and reliable – the ideal backup power solution for professional use. The Stahlzet SZ20KW is a powerful diesel generator with 20 kVA power, designed for intensive use in industry, construction and emergency power supply. Thanks to its 2-cylinder engine, sound-attenuated housing and large fuel tank (46 L), it offers reliable performance for up to 9 hours at 75% load. 18.8 kVA continuous power | 20 kVA peak power 230V/400V outputs with AVR for stable power Low noise: Only 72 dB(A) at 7 meters ATS connection for automatic mains switching in the event of a power failure Auto-start function – remote start/stop Easy operation via LED display & electric start Mobile & robust – with sturdy wheels and compact construction Engine: 2-cylinder diesel with electric start Tank capacity: 46 litres | Walking time: approx. 9 hours Connections: 32A & 16A | Power factor: 0.8 Stage V compliant – meets the latest emission standards