Main range of productPhaseo Optimum product or component typeSafety and isolation transformer rated power in VA250 VA input voltage230 V AC single phase, terminal(s): N-L1400 V AC phase to phase, terminal(s): L1-L2 output voltage24 V AC secondary windingSingle protective coverWithout ambient air temperature for operation-20…50 °C Complementary input voltage limits360...440 V207...253 V network frequency limits47…63 Hz input voltage tolerance+/- 15 V efficiency90 % power dissipation in W27.8 W output sustained overvoltage6 % (no load, hot state) maximum voltage drop at rated load0.1 % no load losses12.5 W short-circuit voltage0,0551 output protection typeAgainst overload, protection technology: externalAgainst overvoltage, protection technology: externalAgainst short-circuits, protection technology: external connections - terminalsFor input connection: screw type terminals, connection capacity: 5 x 4 mm² AWG 11For input ground connection: screw type terminals, connection capacity: 1 x 4 mm² AWG 11For output connection: screw type terminals, connection capacity: 2 x 4 mm² AWG 11 markingCE fixing modeBy 4 screws diameter: 5.8 mm on vertical panel, operating position: horizontalBy 4 screws diameter: 5.8 mm on vertical panel, operating position: verticalBy 4 screws diameter: 5.8 mm on horizontal panel with derating to 90 % operating altitude3000 m electrical insulation classClass B width120 mm height122 mm depth85 mm net weight4.4 kg Environment product certificationsUREAC standardsUL 506 IP degree of protectionIP20 environmental characteristicEMC conforming to EN 62041Safety conforming to EN 61558-1Safety conforming to EN 61558-2-6 protective treatmentTC ambient air temperature for storage-40…80 °C overvoltage categoryClass I conforming to VDE 0106-1 dielectric strength2000 V between winding and ground4000 V between primary and secondary Offer Sustainability Sustainable offer statusGreen Premium product REACh Regulation REACh free of SVHCYes EU RoHS DirectivePro-active compliance (Product out of EU RoHS legal scope)
EU RoHS Declaration
Mercury freeYes RoHS exemption information China RoHS Regulation Environmental Disclosure Circularity ProfileNo need of specific recycling operations
End of Life Information
Contractual warranty Warranty18 months
EU RoHS DeclarationFormatSizeAdd to My DocumentsProduct Environmental ProfileFormatSizeAdd to My DocumentsREACh DeclarationFormatSizeAdd to My Documents
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Dimensions in mm
Dimensions in in.
Connections and SchemaInternal SchemePrimary Voltage WiringSecondary Voltage Wiring