CCM250 Series 250 W Convection Cooled 300 W Peak Rating 500 ms Very High Efficiency up to 95% Class B Conducted & Radiated Emissions 1U Form Factor 5 V Standby Rail 80 V - 275 VAC Input Operation IT, Industrial & Medical Safety Approvals Remote On/Off & Power Fail Signal as Standard The CCM250 range of single output AC-DC 250 W nominal, 300 peak power supplies feature industry leading efficiency of 95% and absolute minimum efficiency of 90% with 90 VAC input and full load. This leap in efficiency has been achieved with full resonant ZCS topology and careful consideration to every aspect of power loss resulting in a convection cooled power supply packaged in a 6 (153mm) x 4 (102mm) x 1.5 (38mm) chassis which can be easily installed into the end application due to a 70% reduction in the dissipated heat, associated with other power supplies in this power range. The six standard models cover the voltage range from 12V - 48V , have dual input fusing and are compliant with IEC60601-1 Medical and IEC60950-1 IT safety approvals. The CCM250 series also boasts low earth leakage current of typically 90A at 115V and 160A at 230V, class B conducted and radiated emissions 5V standby rail, power fail signal and remote on / off.xppower.com Models and Ratings - Convection-cooled Output Power Output Current V1 Output Voltage V1 Standby Supply Model Number (1) (1) P nom P peak I nom I peak 250 W 300 W 12.0 VDC 20.8 A 25 A 5.0 V/0.5 A CCM250PS12 250 W 300 W 15.0 VDC 16.7 A 20 A 5.0 V/0.5 A CCM250PS15 250 W 300 W 24.0 VDC 10.4 A 12.5 A 5.0 V/0.5 A CCM250PS24 250 W 300 W 28.0 VDC 8.9 A 10.7 A 5.0 V/0.5 A CCM250PS28 250 W 300 W 36.0 VDC 6.9 A 8.3 A 5.0 V/0.5 A CCM250PS36 250 W 300 W 48.0 VDC 5.2 A 6.25 A 5.0 V/0.5 A CCM250PS48 Notes: 1. Peak duration is 500 ms max, average power must not exceed 250 W. Input Characteristics Characteristic Minimum Typical Maximum Units Notes & Conditions Derate output power <90 VAC. See fig 1. Input Voltage - Operating 80 115/230 275 VAC Power fail signal cannot be used <90 VAC. Input Frequency 47 50/60 63 Hz > Power Factor 0.9 EN61000-3-2 class A compliant Input Current - No Load 0.13/0.17 A 115/230 VAC Input Current - Full Load 2.4/1.2 A 115/230 VAC Inrush Current 30 A 230 VAC, 25 C Earth Leakage Current 90/160 250 A 115/230 VAC/50 Hz (Typ.), 264 VAC/60 Hz (Max.) Input Protection T5.0A/250 V internal fuse in both line and neutral Output Characteristics Characteristic Minimum Typical Maximum Units Notes & Conditions Output Voltage - V1 12 48 VDC See Models and Ratings table (V1) (V2) Initial Set Accuracy 0.5 , 5 % 50% load, 115/230 VAC Output Voltage Adjustment 3 % V1 only via potentiometer. See mech. details (page 11). Minimum Load 0 A Start Up Delay 0.5 s 230 VAC full load (see fig.2) Hold Up Time 20 40 ms 90 VAC full load (see fig.3) Drift 0.2 % After 20 min warm up Line Regulation 0.5 % 90-264 VAC (V1) (V2) Load Regulation 1 , 5 % 0-100% load. Recovery within 1% in less than 500 s Transient Response - V1 4 % for a 50-75% and 75-50% load step Over/Undershoot - V1 5 % (V1) (V2) Ripple & Noise 1 , 2 % pk-pk 20 MHz bandwidth (see fig.4 & 5) Overvoltage Protection 115 140 % Vnom DC. Output 1 only, recycle input to reset Overload Protection 125 165 % I nom Output 1 only, auto reset (see fig.6) Short Circuit Protection Continuous, trip & restart (hiccup mode) all outputs Temperature Coefficient 0.05 %/C Overtemperature Protection 110 C Auto recovery - temperature of main transformer 2