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Powering the Network
Powering the Network
www.newmartelecom.com 800-854-3906
Newport Beach, CA USA
Unity Rectifier System
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 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.
Features
150 watt rectifier units, 48 or 24 volt, slide and lock into
the Unity Shelf
Shelf accommodates up to three rectifiers450 watts
totalplus 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 inputeasily 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; center or flush mount
(four-point cabinet mount optional)
Unity Rectifiers
Models: UR48-3, UR24-6
Input Voltage/Frequency: 85-264 VAC* / 47-63 Hz.
Input Amperage: 2.2 amps @ 115V and full load, 1.1 amps @

230V and full load
Input Frequency: 47-63 HZ.
Power Factor: .96-.98
Output Voltage/Amperage*:
UR48-3: -54.4 VDC, adjustable 42-56 VDC, 3 amps continuous
UR24-6: +27.2 VDC, adjustable 21-28 VDC, 6 amps continuous
*100 % output power available from 105 to 264 VAC; Derate
output linearly from 100% @ 105 VAC to 80% @ 85 VAC
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: 115/230 VAC nominal
Capacity: Up to Three Unity Rectifiers, -48 or +24 volt
and one GMT Fuse Panel (UFP-5)
Mounting: 19" or 23" rack; center 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 10 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 Rectifier
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