NTS500 Series Data Sheet
Environmental Specications
Operating temperature 0° to 50 °C ambient derate each output as 2.5% per degree from 50° to 70 °C
Storage temperature -40 °C to +85 °C
Electromagnetic susceptibility Designed to meet EN61000-4; -2, -3, -4, -5, -6, -8, -11 Level 3
Humidity Operating; non-condensing 10% to 90% RH
Vibration Three orthogonal axes, sweep at
1 oct/min, 5 min. dwell at four major resonances 2 G peak 8 Hz to 500 Hz, operational
Ordering Information
Model Number Output Voltage Minimum
Load
Maximum Load with
Convection Cooling
Maximum Load with
30CFM Forced Air Peak Load1Regulation2Ripple
P/P (PARD)3
NTS503 12 V 0 A 16.6 A 41.7 A 47 A ± 2% 120 mV
NTS505 24 V 0 A 8.3 A 20.8 A 23.4 A ± 2% 240 mV
NTS506 18 V 0 A 11.1 A 27.7 A 30 A ± 2% 180 mV
NTS508 48 V 0 A 4.2 A 10.4 A 11.7 A ± 2% 480 mV
1. Peak current lasting < 30 seconds with a maximum 10% duty cycle.
2 . At 25 °C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.
3 . Peak-to-peak with 20 MHz bandwidth and 10 µF (tantalum capacitor) in parallel with a 0.1 µF capacitor at rated line voltage and load ranges.
4. 12 V fan output cannot be used above 50 °C with convection cooling.
5. -CF suffix added to the model number indicates cover with top fan. -CEF suffix added to the model number indicates cover with end mounted
fan cover and AC inlet.
6.
This product is a Component Power Supply and is only for inclusion by professional installers within other equipment and must not be operated as
a standalone product. EMC compliance to appropriate standards must be veried at the system level. This product is for sale to OEMs and System
Integrators, including through Distribution Channels. It is not intended for sale to End Users.
Logic Control
Power failure TTL logic signal goes high 100 - 500 msec after main output. It goes low 10msec before loss of regulation.
Remote on/off Requires an external contact closure to inhibit outputs
DC OK TTL logic goes high after the output is in regulation. It goes low when there is loss of regulation.
Remote sense Compensates for 0.5 V lead drop min. Will operate without remote sense connected. Reverse connection protected.