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 � Tucson, Arizona 85706 � Phone: 520.295.4100 � Fax: 520.770.9369 � Internet: http://www.cdpowerelectronics.com NX301 3/98 REV B Page 1 Input Specifications Parameter Conditions Min Typ Max Units Operating Range 47-63 Hz 90 264 VAC Inrush Current Limiting 120VAC, cold start 35 APK 240VAC, cold start 70 APK Efficiency 120V 120V, full load 70 % 240V 240V, full load 75 % Power Factor Correction (PFC) 0.99 Meets IEC 1000-4-7/EN61000-3-2 (formerly IEC 555-2) Remote Sense Power Fail Signal Remote Sense is provided on Output #1 and will Upon AC input voltage removal, the power fail signal drops compensate for 0.7V of line drop. Remote Sense leads to logic zero at least 5msec before loss of DC output. On AC input turn-on, signal remains low until outputs are in are protected against open, short and reversal. regulation. Consult the factory for other options. Remote On/Off N + 1 Load Share The power supply is turned on with a TTL logic ‘1’ (or open) Output #1 has active load sharing circuitry. Units will load signal and turned off by a switch closure or TTL logic ‘0’ share within 1.5% of Maximum Rated Load. referenced to (-) sense terminal. Consult the factory for other options. Over Temperature Protection Thermal switch turns off power supply if overheating occurs Over Voltage Protection and automatically restarts. Output #1: 6.5V ± 0.5 VDC. The power supply will latch off until AC power is cycled. Safety Over Current Protection UL Recognized: UL File Number E14675 (1950 & 1012) Individual current limit on all outputs. Automatic recovery CSA Certified: CSA File Number LR 9070-154C upon fault removal. (C22.2 No. 234-M90, Level 6) TUV License Number: R9576031 (EN60950) (IEC950) Transient Response The peak output voltage excursion will not exceed 2% and Cooling will recover within 1% in 200 μsec for a 25% load step The unit is designed to operate with 30 CFM of airflow. change. Output Isolation All outputs are fully isolated. Page 2 NX301 3/98 REV B Output Voltages and Maximum Rated Loads OUTPUT #1 OUTPUT #2 OUTPUT #3 OUTPUT #4 MODEL NUMBER VOUT IMAX VNOM IMAX/IPK VNOM IMAX/IPK VNOM IMAX NX301-U3A ±5V 45A ± 12V 8A/10A ± 12V 8A/10A - - NX301-U3B ±5V 45A ± 15V 8A/10A ± 15V 8A/10A - - NX301-U4C ±5V 45A ± 12V 8A/10A ± 12V 8A/10A ± 5V 3.0A NX301-U4D ±5V 45A ± 12V 8A/10A ± 12V 8A/10A ± 24V 1.5A NX301-U4E ±5V 45A ± 12V 8A/10A ± 12V 8A/10A ± 12V 3.0A NX301-U4F ±5V 45A ± 15V 8A/10A ± 15V 8A/10A ± 5V 3.0A NX301-U4G ±5V 45A ± 15V 8A/10A ± 15V 8A/10A ± 24V 1.5A NX301-U4H ±5V 45A ± 15V 8A/10A ± 15V 8A/10A ± 12V 3.0A NX301-U3N ±5 45A ±5 8A ±12 8A NX301-U4P ±5 45A ±12 8A ±15 8A ±12 3.0A Note: Peak current ratings are for 10sec maximum. Total power not to exceed 300 watts. Output Specifications Parameter Limits Regulation Line ± 0.03% Load ±0.25% Cross ±0.05% Minimum Load Output #1 3.0A Auxiliary Outputs 0.1A Hold-Up Time 25mSec at Full Load Parameter Conditions Min Typ Max Units Voltage Adustment Range ±5 % PARD 20 MHz bandwidth 1 % P-P Temperature Operating 050°C Derates to half power 70 °C Storage -20 +85 °C Temperature Coefficient (TC) After half hour warm-up ± 0.02 %/°C NX301 3/98 REV B Page 3 Mechanical TOP VIEW 0.040 8.50 1.95 0.25 COVER 0.55 1 TB2 3.90 4.85 1 J9 OUTPUT NO. 1 1 5V RETURN 9.00 TB1 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. J9 Connector J9 Connector Terminal Block 1 Terminal Block 2 PIN FUNCTION Molex No. POS FUNCTION POS FUNCTION 1 + Sense Connector 22-28-1090 1 AC Line 1 -V2 2 - Sense 2 AC Neutral 2 +V2 3 N/C 3 Ground 3 -V3 4 N/C 4 +V3 5 Start Up Sync. 5 -V4 6 Power Fail 6 +V4 7 Remote Inhibit 8 Current Share 9 Cntl Signal Rtn 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