The Siemens SITAS 4AM3842-8EN00 provides 160VA of safety isolating control power with a 12-tap primary covering 230V to 600V AC and a 24V AC SELV secondary at 6.67A. The extended 600V upper tap makes it the go-to transformer for Canadian and North American industrial control panels operating at 575/600V distribution — the standard voltage for pulp and paper mills, sawmills, and heavy manufacturing across Canada and the northern United States.

12-Tap Primary: 230V to 600V Coverage

The twelve primary taps — 600/575/550/525/500/480/460/440/415/400/240/230V — provide the widest voltage coverage in the 4AM3842 range. The three highest taps (600/575/550V) specifically address the 575V nominal standard used across Canadian industrial facilities per CSA C235, while the lower taps cover European IEC voltages down to single-phase 230V. This makes the 8EN00 a single-transformer solution for machine builders exporting equipment between North American 600V-class and European 400V-class markets.

24V SELV with 490VA Short-Time Rating

The 24V AC secondary at 6.67A is EN 61558-2-6 safety isolating certified, providing SELV-compliant control power for operator-accessible devices. The 490VA S6 short-time rating handles the combined pull-in current of multiple IEC or NEMA contactors during machine startup, preventing control voltage sag that could cause contactor dropout or safety relay fault detection in high-vibration industrial environments like sawmills and crusher plants.