Rectifier AC/DC

DC48V power supply


GAMATRONIC 1UDC+ Power Systems DC 12V, 24V, 48V

Modularni ispravljači velike snage (AC/DC rectifiers) nominalnog napona po izboru (12V, 24V ili 48V) izraelskog proizvodjača Gamatronic. Ovi ispravljači se često koriste za napajanje telekomunikacione opreme kada se traži pouzdan rad i visoka efikasnost. Sistemi se mogu daljinski kontrolisati i nadgledati.


1UDC+ Power System
The Gamatronic 1U DC+ power system provides clean DC power to sensitive equipment while simultaneously charging the battery bank, and supplying backup power during mains failure.

The 1U DC+ contains a 19” 1 U subrack that can house up to 3 hot-plugged rectifiers, or 2 rectifiers + controller and an LVD device.

Max system capacity: Up to 13 subrack (38 rectifiers + controller), 1266 A with height of 13 U.

Basic shelf:

1U DC+ type I – includes a 19” 1U shelf (subrack) with up to 3 rectifiers.

Electronic Basic shelf:

1U DC +type II – includes a 19” 3U shelf with up to 2 rectifiers + SC
1UDC+ controller and an Electronic LVD device.

Main Features:

• 100A for each 1U shelf
• Intelligent power module, digitally controlled
• One to three hot-swap rectifiers in each shelf
• Active current sharing among rectifiers
• Universal input voltage
• A built-in dual 70 A Electronic Low Voltage Disconnect device (ELVD) for battery protection
• Option to connect 2 external LVD contactors up to 1600 A
• A high-performance, hot-swap system controller (SC 1UDC+) to measure, monitor and control voltages, current, power, battery, temperature, etc.
• USB (SC1U DC+) or TCP/IP+USB communication (SC 1UDC+ NET)
• Temperature compensation enhances battery life
• Battery current limit
• Up to two battery sets handled in one system
• Automatic and pre-programmed battery test (for each battery set)
• Automatic and pre-programmed equalized charging mode
• Comprehensive remote control and monitoring system using a dedicated graphical user interface (GeMSi, PSM-1UDC+)
• Breaking alert by modem (optional)


Nominal voltage 185 to 275 VAC
Permitted variation  85 to 300 VAC
Maximum current (at full load)  N*3 A  N*6 A N*10 A
Frequency  47 to 63 Hz
Power factor (at full load) ≥ 0.99
Maximum configuration 38 rectifier modules  +controller, 38 rectifier modules +controller, 38 rectifier modules +controller,
(1520 A, 13.5 V, 20.5 kW) (1520 A, 27 V, 41 kW) (1255 A, 54 V, 68.4 kW)
Voltage (default) 13.5 ±0.1 VDC  27 ±0.1 VDC 54 ±0.2 VDC
Adjustable range 11.5 to 14.5 VDC  23 to 29 VDC 47 to 58 VDC
Regulation (line & load) ±0.5 %; ±0.25 % with controller
Nominal Current N*40 A N*40 A (Vin>195 VAC) N*33.3 A (Vin>195 VAC)
N*20 A (Vin=110 VAC) N*16 A (Vin=110 VAC)
Ripple&noise @BW=30MHz 150 mV p-p, 30 mVrms 150 mV p-p, 30 mVrms 200 mV p-p, 40 mVrms
Psophometric noise -52 dbm over 600 Ώ (<2 mV)
Efficiency:        (nominal load) up to 90 % up to 93 % up to 95.2 %
(50 % load) up to 91 % up to 94.2 % up to 96.2 %
Overload current 1 N*42 A (Vin>90 VAC) N*42 A (Vin>200 VAC) N*35 A (Vin>200 VAC)
(Short circuit current, Vo=0) <N*20 A (Vin=230 VAC) <N*20 A (Vin=230 VAC) <N*20 A (Vin=230 VAC)
Over-voltage protection 15 V 30 V 59.5 V
Walk-in time 10 s
Hold-up time
@ nominal input
≥ 20 ms (90% load, 20 ms (90% load, 20 ms (90% load,
output decays to 11.5 V) output decays to 23 V) output decays to 46 V)
Output current indication Alpha-numeric LCD on the system controller, 4 LEDs on each module
Active current sharing  ±10 % accuracy at full load
System controller Full status monitoring and communication with a PC, dedicated GUI, USB, RJ45
Withstand voltage (1 min) 3 3000 VAC INPUT/OUTPUT, 1500 VAC INPUT/GND
Operating temperature  -10 to 70 °C (output de-rated at >50 °C by 5 % / °C)
Humidity  <95 % non-condensing, equipped with standard PS1UDC+ rack
Storage temperature -20 ~ 80 °C
EMC ETSI, EN 300 386 V1.5.1 (2010-05), EN 55022 Class B, EN 61000-4-2/3/4/5/6/11, EN 61000-3-2 and EN 61000-3-3
Safety Conforms to IEC 90650
Dimensions:         Sub-rack 19” (W) x 1U (H) x 320 mm (D) w/o terminals (360 mm with terminals)
Rectifier module 146 mm (W) x 44 mm (H) x 260 mm (D)
Weight (kg):          Sub-rack (N*1.4 kg)+4.2 kg (fully equipped system – max. 11.2 kg)
Rectifier module  1.4 kg
Max. current withstand 2×70 ADC or 1×120 AAC
Notes: 1.   N=number of modules.                                  2.   The basic shelf has a system controller.
3.   Equivalent dc test voltage is applied to overcome Y-capacitors’ leakage current to ground.
Output is floating (not grounded) during test.


AC/DC Power Supply

DC Power Supply, DC napajanje sa DC distribucijom



modular DC power supply

Ispravljač AC/DC
DC napajanje sa distribucijom