The 4AM3442-8EN00 is a 100VA multi-tap single-phase control transformer from the Siemens SITAS 4AM series, providing a fixed 24VAC at 4.17A from any of 12 selectable primary voltage taps between 230V and 600V. It is the 24V-output counterpart to the 8ED40, optimized for global OEMs standardizing on 24V control circuits.

Worldwide Input, Universal Output

Primary taps cover 600V, 575V, 550V, 525V, 500V, 480V, 460V, 440V, 415V, 400V, 240V, and 230V — every major industrial voltage from Canadian 600V through European 400V to Asian 230V. The fixed 24V secondary keeps the downstream control circuit design identical regardless of destination. For OEMs shipping 24V-controlled machinery worldwide, one transformer part number eliminates voltage-specific variants from the BOM. The 310VA S6 rating handles contactor inrush without voltage sag — critical for 24VDC power supply input stability.

Construction

The EI 84/42 laminated core with Class B insulation delivers 86% efficiency at 40°C ambient. IP00 open-style, mounts via screws or 35mm DIN rail (EN 60715). Screw-type terminals. Certified to EN 61558-2-2 and EN 61558-2-6 with CE, cRUus, and EAC approvals for global regulatory compliance.

Key Decision Parameters