3 x 5” 400W AC-DC Power Supplies The compact CUS400M is packaged in the industry standard 3x5” footprint. The series can deliver 400W with forced air or 250W when convection cooled with a 400W peak power for extended periods of time (minutes). Cooling is also assisted via conduction through the base into the equipment chassis. With Medical & ITE certifications, the units can be used in both Class I & Class II (no ground wire) applications, and meets Class B Conducted and Radiated EMI. Options include a standby voltage, signals and multiple case options. • 250W Convection / Conduction Cooled with 400W Peak for Extended Time Periods • Quiet Operation • Can Utilise System Airflow or Integrated Fan • Medical Certifications (2 x MOPP) • Suitable for B and BF Type Medical Equipment • Class B Conducted and Radiated EMI • Easier System EMC Compliance • Suitable for Class I and Class II installations • Flexible Utilisation • Space Saving in End Equipment • Enclosure & Signal Options • Versatile Application Model Selector Model Nominal Output Voltage (V) Maximum Maximum Peak Current (A) Maximum Maximum Current Current Convection cooled ≥115Vac input Power Power Convection (A) Forced Air (A) (See derating curve section) Convection (W) Forced Air (W) E blank dual fuses E single input fuse in line (AC input only) Output voltage 12, 15, 19, 24, 28, 36, 48 blank open frame with plastic baseplate C open frame with plastic baseplate and M3 threaded inserts for under side mounting U U channel chassis B open frame with metal baseplate A U channel chassis with cover F U channel chassis, cover and top fan Blank JST Connectors M Molex type input connector blank X2 X3 X5 X6 Standard leakage current (<250uA) Reduced leakage current <150uA (Contact Technical Sales) No options 5V 2.0A standby supply, remote on/off (enable), remote sense, DC-OK, AC Fail 12V 0.83A standby supply, remote on/off (enable), remote sense, DC-OK, AC Fail 5V 2.0A standby supply, remote on/off (inhibit), remote sense, DC-OK, AC Fail 12V 0.83A standby supply, remote on/off (inhibit), remote sense, DC-OK, AC Fail Example: CUS400M-15V25/FEX5 = 15.25V factory output voltage set point, U chassis, cover and fan, single fuse, X5 stand

Specifications Model Input Input Voltage range Input Frequency Input Current (100Vac) Inrush Current at 264Vac, 63Hz (Cold Start) Leakage Current (1) Touch Current (Enclosure Leakage) (1) Power Factor (100Vac) Harmonic Compliance No Load Power Consumption Hold Up Time at 115Vac Input Efficiency Average Efficiency Conducted & Radiated EMI Immunity Insulation Class Safety Agency Certifications CUS400M 85 - 264 (See derating curves) 47 - 63 < 5.0 <40 <250 <100 > 0.97 (>20% load) IEC61000-3-2 Class A <1.3 when output is inhibited (230Vac input). <10 without output inhibited >16 (400W load) (CUS400M-15...

Specifications Model Output Line Regulation % 0.5 (85 - 264Vac) Load Regulation % 1.0 (0 - 100% load) Ripple & Noise % <1 Temperature Coefficient %/°C ±0.02 Minimum Load - No minimum load required Overcurrent Protection % 101 to 170. Hiccup mode, automatic recovery Overvoltage Protection - Latching (unit shutdown), cycle AC input to reset Overtemperature Protection - Latching (unit shutdown), cycle AC input to reset Remote Sense - See model selector (requires X option) 0.5V total compensation Voltage at output terminals must remain within the range specified in the model selector Remote On/Off...

Peak Power Rating Curves. U chassis configuration, convection cooled on metal baseplate Maximum ON time (minutes) Maximum Duty Cycle (%) Maximum achievable output power 250W peak power 400W peak power 400W Continuous 400W peak power No peak rating 400W peak power 400W peak power The curves below are guidelines only. The actual performance should be tested in the application. See application notes for all mechanical formats. Output Power vs Ambient Temperature Open Frame Unit (mounted on a 300 x 300 x 1 mm aluminum plate)

Electrolytic Capacitor Life ( CUS400M-12 Open Frame Unit Convection and Conduction Cooled)

Mechanical Specification Outline Drawing CUS400M Open Frame Unit

Mechanical Specification Outline Drawing CUS400M Open Frame Unit with Baseplate

Mechanical Specification Outline Drawing CUS400M/U (U Channel) Option

Mechanical Specification Outline Drawing CUS400M/A (U Channel with Cover) Option

Mechanical Specification Outline Drawing CUS400M/F (U Channel, Cover and Fan) Option

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