The Siemens SITAS 4AM4042-8ED40 extends the multi-tap concept up to 600 V AC on the primary side — designed for installations where the available mains voltage is above the typical 400–480 V industrial range. Twelve selectable primary taps (600 V down to 230 V) cover Canadian 600 V systems, South American 575 V networks, and European 525/550 V heavy-industry feeders. The 2×115 V dual secondary provides universal control voltage flexibility: series for 230 V IEC panels, parallel for 115 V NEMA panels. With 850 VA short-time capacity, it handles contactor banks and relay logic with no voltage drop.

Key Features

• 12 primary taps up to 600 V — covers high-voltage industrial mains worldwide
• Dual 2×115 V secondary — series (230 V) or parallel (115 V) configuration
• 850 VA short-time (S6) rating for demanding electromagnetic loads
• 89% efficiency at full load, 50/60 Hz operation
• IP00 open-frame — 98 × 106 × 118 mm, screws or DIN rail mounting
• UL/CSA recognized, CE, EAC certified

Technical Data

Applications

Targeted at OEM machine builders exporting to 575–600 V markets: Canadian industrial panels, South American processing equipment, and European heavy-industry control cabinets. The extended high-voltage primary taps eliminate the need for a separate step-down transformer upstream. The dual secondary supports both IEC and NEMA control circuit standards from one device.