Newmar Powering the Network Unity Rectifier System. 150 watt rectifier units in 24-48 VDC hot swap units with an optional distribution panel with five individually fuse protected circuits. The Unity Rectifier is used in Land Mobile, Cellular, Broadband, and Microwave applications.

Unity Rectifier System

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

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.

Download PDF Data Sheet

Unity Rectifier System

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.

Rectifier	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 Rectifier

Rectifier	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; center or flush mount (four-point cabinet mount optional)

Unity Rectifiers
Models: UR48-3, UR24-6
Input Voltage/Frequency/PF: 85-264 VAC* / 47-63 Hz. / .96-.98
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
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: 115/230 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, 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 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

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