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24V DC    and    48V DC
Unity - Low Power - 150Watts/Rectifier

Newmar’s Powering the Network offers Unity Rectifiers. Telecom Hot Swap Rackmount Rectifier with 3-24 amps per system and 24-48 VDC.

 

The Unity Rectifier System comprises a low profile 1.75" (1 RU) shelf which accommodates up to three 150 watt, -48 or +24 volt hot-swap rectifiers, plus an optional GMT fuse distribution panel which contains five individually fuse-protected circuits. The system is scalable/adaptable for N, N+1 or N+2 configurations. Front panel test points and voltage adjustment pot are provided for fine-tuning output to the requirements of sensitive loads and to optimize load sharing. Form C status contacts enable remote alarms for the rectifiers and fuse distribution circuits. Front panel OK/FAIL LED's allow monitoring status of each rectifier individually. The optional power distribution module employs industry standard GMT fuses, configured with alarm contacts and a front panel "BLOWN FUSE" LED indicator.

Unity Rectifier Systems
 
Shelf
Input
Capacity
Size
Weight
URS
115/230 VAC Nom.
3 Unity Rectifiers (-48 or +24 V), 1 GMT fuse panel
19/23” Rackmount, 1 RU
6.7 lbs.
 
Rectifiers
Input Amps @ Full
Load 115/230V
Output Voltage
Output
Amps Cont.
Watts
Size
Weight
UR48-3
2.2/1.1
-54.4 VDC, adjustable 42-56 VDC
3
150
1 RU
1.9 lbs.
UR24-6
2.2/1.1
+27.2 VDC, adjustable 21-28 VDC
6
150
1 RU
1.9 lbs.
 
GMT Panel
Nominal Input/Output
Total Fuse Fuse Capacity
Total Current Capacity
Size
Weight
UFP-5
-48 or +24 VDC
5
20A
1 RU
1 lbs.
 
Unity Stand-Alone Rectifiers
 
Rectifiers
Input Amps @ Full
Load 115/230V
Output Voltage
Amps Cont. Output
Watts
Weight
USAR48-3
2.2/1.1
-54.4 VDC, adjustable 42-56 VDC
3
150
2.8 lbs.
USAR24-6
2.2/1.1
+27.2 VDC, adjustable 21-28 VDC
6
150
2.8 lbs.

Features

  • 150 watt rectifier units - 48 or 24 volt, slide and lock into the Unity Shelf
  • Shelf accommodates up to three rectifiers—450 watts total—plus an optional five-position GMT fuse panel
  • Scalable/adaptable hot swap configuration: N, N+1, N+2
  • Front panel status indicators, output voltage test points and adjustment potentiometers
  • Individual or summary rectifier alarm contacts; Form C
  • Summary fuse panel alarm contacts; Form C
  • Forced air cooling of rectifiers for extended component life
  • 115/230 VAC shelf/rectifier input—easily adapts to available site power
  • GMT fuse panel: Five positions, easy rear panel wiring to loads, fuse access at front
  • Shelf adapts for 19" or 23" rack; centre or flush mount (four-point cabinet mount optional)

Download Data Sheet - Unity Rectifier Systems

Download Manual - Unity Rectifier Systems

Unity Rectifiers
Models: UR48-3, UR24-6
Input Voltage/Frequency/PF: 85-264VAC* / 47-63Hz. / .96-.98
Input Amperage: 2.2 amps @ 115V and full load, 1.1 amps @ 230V and full load
Input Frequency: 47-63HZ.
Power Factor: .96-.98
Output Voltage/Amperage*:
UR48-3: -54.4VDC, adjustable 42-56VDC, 3 amps continuous
UR24-6: +27.2VDC, adjustable 21-28VDC, 6 amps continuous
*100 % output power available from 105 to 264VAC; Derate output linearly from 100%@105 VAC to 80% @ 85VAC
Efficiency: 83% per rectifier
Regulation: +/- 2 %
Ripple:
UR24-6: 150 mV
UR48-3: 250 mV
Protection: Over-voltage, current limiting, over-temp, forced air cooling
Alarms/Indicators: Output failure contacts; Form C
Front panel LED indications: "DC OK/DC FAIL" Front panel voltage test points and adjustment
Operating Temperature: -10°C to +60°C; 100 % load to +50°C; Derate linearly to 80 % load @ 60°C
Weight: 1.9 lbs.
Design Standards: EN55022 Class B, EN61000-4-2,3,4,5,6,8,11, EN61000-3-2,3, UL 1950
Approvals: UL Recognized 60950
Unity Rectifier Shelf
Model: URS
Input: 115/230VAC nominal
Capacity: Up to Three Unity Rectifiers, -48 or +24 volt and one GMT Fuse Panel (UFP-5)
Mounting: 19" or 23" rack; centre or flush mount (four-point cabinet mount optional)
Weight: 6.7 lbs.
Unity Fuse Distribution Panel
Model: UFP-5
Voltage: -48 VDC or +24 VDC nominal (selectable by jumper)
Current: 20 amps max. total
Capacity: Five GMT fuses, 10 amps max. per individual fuse
Available Amperages: 1, 3, 5, 7.5, 10, 15 Amps
Alarms/Indicators:
Output failure summary alarm contacts; Form C
Front panel blown fuse summary LED indicator
Individual visual blown fuse indication
Weight: .9 lb.
Unity Stand-Alone Rectifiers
For applications that do not require rack-mounting or redundancy, the Unity is available as a stand-alone rectifier. A versatile flange permits a myriad of mounting options, such as on the side of rack rails, inside cabinets, on walls or under shelves, maximizing use of restricted spaces.

The unit comes with a 6’ power cord and a rear-mounted terminal block for easy wiring. Performance specifications are identical to single Unity Rectifiers detailed on this page.


Models: USAR48-3 and USAR24-6

 

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Last modified: 16-Aug-2011  

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