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| Product Data Sheet 300 WATT AC/DC POWER SUPPLY NX301 DESCRIPTION The NX301 is a compact 300 watt Power Factor Corrected, multiple output power supply. All outputs are fully isolated and regulated. Active current sharing circuitry, together with control functions and alarm options, simplifies N+1 and redundant applications. Fan and disk drive applications are handled by the peak current ratings of the auxiliary outputs. FEATURES Active Power Factor Correction Fully Isolated Outputs Low Profile: 9" x 4.85" x 2.00" One, Two, Three and Four Output Models N+1 Current Sharing FCC/VDE Class B EMI Filter Standard Optional Fan Mounted On Cover AGENCY APPROVALS 3400 E Britannia Drive NX301 3/98 REV B Tucson, Arizona 85706 Phone: 520.295.4100 Fax: 520.770.9369 Internet: http://www.cdpowerelectronics.com Page 1 Input Specifications Parameter Operating Range Inrush Current Limiting 120VAC, cold start 240VAC, cold start Efficiency 120V 240V Power Factor Correction (PFC) Meets IEC 1000-4-7/EN61000-3-2 (formerly IEC 555-2) 120V, full load 240V, full load 70 75 0.99 % 35 70 APK APK Conditions 47-63 Hz Min 90 Typ Max 264 Units VAC % Remote Sense Remote Sense is provided on Output #1 and will compensate for 0.7V of line drop. Remote Sense leads are protected against open, short and reversal. Remote On/Off The power supply is turned on with a TTL logic `1' (or open) signal and turned off by a switch closure or TTL logic `0' referenced to (-) sense terminal. Consult the factory for other options. Over Voltage Protection Output #1: 6.5V 0.5 VDC. The power supply will latch off until AC power is cycled. Over Current Protection Individual current limit on all outputs. Automatic recovery upon fault removal. Transient Response The peak output voltage excursion will not exceed 2% and will recover within 1% in 200 sec for a 25% load step change. Output Isolation All outputs are fully isolated. Power Fail Signal Upon AC input voltage removal, the power fail signal drops to logic zero at least 5msec before loss of DC output. On AC input turn-on, signal remains low until outputs are in regulation. Consult the factory for other options. N + 1 Load Share Output #1 has active load sharing circuitry. Units will load share within 1.5% of Maximum Rated Load. Over Temperature Protection Thermal switch turns off power supply if overheating occurs and automatically restarts. Safety UL Recognized: UL File Number E14675 (1950 & 1012) CSA Certified: CSA File Number LR 9070-154C (C22.2 No. 234-M90, Level 6) TUV License Number: R9576031 (EN60950) (IEC950) Cooling The unit is designed to operate with 30 CFM of airflow. Page 2 NX301 3/98 REV B Output Voltages and Maximum Rated Loads OUTPUT #1 IMAX VOUT 5V 5V 5V 5V 5V 5V 5V 5V 5 5 45A 45A 45A 45A 45A 45A 45A 45A 45A 45A MODEL NUMBER NX301-U3A NX301-U3B NX301-U4C NX301-U4D NX301-U4E NX301-U4F NX301-U4G NX301-U4H NX301-U3N NX301-U4P OUTPUT #2 VNOM IMAX/IPK 12V 15V 12V 12V 12V 15V 15V 15V 5 12 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A 8A OUTPUT #3 VNOM IMAX/IPK 12V 15V 12V 12V 12V 15V 15V 15V 12 15 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A/10A 8A 8A OUTPUT #4 VNOM IMAX 5V 24V 12V 5V 24V 12V 3.0A 1.5A 3.0A 3.0A 1.5A 3.0A 12 3.0A Note: Peak current ratings are for 10sec maximum. Total power not to exceed 300 watts. Output Specifications Parameter Regulation Line Load Cross Minimum Load Output #1 Auxiliary Outputs Hold-Up Time 3.0A 0.1A 25mSec at Full Load 0.03% 0.25% 0.05% Limits Parameter Voltage Adustment Range PARD Temperature Operating Conditions 20 MHz bandwidth Min Typ 5 Max 1 Units % % P-P 0 Derates to half power 50 70 C C C %/C Storage Temperature Coefficient (TC) After half hour warm-up -20 0.02 +85 NX301 3/98 REV B Page 3 Mechanical TOP VIEW 0.25 0.55 8.50 1.95 0.040 COVER 1 TB2 3.90 4.85 1 J9 1 OUTPUT NO. 1 5V RETURN TB1 9.00 5V 6-32 THD 4 PLC'S Maximum depth of mounting screws is 0.156 inches NOTES: All measurements are in inches FAN MOUNTED ON COVER ADDS 1.30". COOLING: The NX301 is designed to operate with 30 CM airflow. SHOCK AND VIBRATION: The NX301 meets the requirements of MIL STD-810D. (Vibration-Method 514.3 Procedure I; Shock-Method 516.3 Procedure I). WEIGHT: Approximately 3 lbs. Terminal Block 1 POS 1 2 3 FUNCTION AC Line AC Neutral Ground Terminal Block 2 POS 1 2 3 4 5 6 FUNCTION -V2 +V2 -V3 +V3 -V4 +V4 1 2 3 4 5 6 7 8 9 J9 Connector PIN FUNCTION + Sense - Sense N/C N/C Start Up Sync. Power Fail Remote Inhibit Current Share Cntl Signal Rtn J9 Connector Molex No. Connector 22-28-1090 Standard Options are shown, consult factory for other available options. The information provided herein is believed to be reliable; however, C&D Technologies assumes no responsibility for inaccuracies or omissions. C&D Technologies assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. C&D Technologies does not authorize or warrant any C&D Technologies product for use in life support devices/systems or in aircraft control applications. Page 4 NX301 3/98 REV B |
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