NTS500 Series Data Sheet

Environmental Specifications

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

Ripple

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 verified 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.