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Special Features

• 24VDC back up UPS
• 3U slide in eurocassette
• Mil Std 461 compliant
• Regulated supply of battery
• Controlled internal fan cooling

Description

• The TPS332 is a DC power supply with a 28V output backed up from an external battery. When operating from the battery, a regulator keeps the output at 28V as the battery discharges until a voltage sensor detects battery limit capacity.
• The main power is derived from a power factor corrected, universal AC input to provide a well regulated DC output.

Electrical Specification Unit

• Universal AC input 100-240VAC, 50/60Hz with power factor correction
• Wide DC input of 20-29VDC from DC back up source such as lead acid battery
• Automatic change over from AC to DC supply when AC fails
• EN55022 and FCC EMC emissions compliance
• Very low current draw from back up supply when AC is present

Output

• 28VDC +/- 2% at 0 to 15A load
• Regulated DC output when operating from a varying battery input
• Low noise output suitable for radio transmitter applications
• AC on front panel LED
• DC on front panel LED

Environmental Performance

• Mil Std 461 compliant including RE 102, (Navy fixed)
• EN61000 compliant for surges, spikes and ESD
• -20°C to +50°C operation
• Internal cooling fans with speed control
• Conformal coating on circuit boards available as an option

Physical Specification

• 3U panel height, fully enclosed, aluminium chassis
• 340mm depth, 14HP panel width
• IEC 320 AC inlet on rear panel with connector retainer
• Neutrik locking power connections for DC input and output