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CAMTEC - 480W Precision DC Rectifier CPS-EC480 SERIES

  • 480W Precision DC Rectifier
  • DIN-Rail Battery Charger
  • C/V Adjustable Industrial Power
  • Real time output current monitoring
  • Precision potentiometer f. voltage & current
  • Power Good Relay AC & DC-ok
  • C/V curve down to 0V. No fold back
  • Sense control 1V per load line
  • Electronic inrush current limiter 13.8Apeak
  • Inhibit function (Interlock)
  • External shutdown
  • Efficiency up to 92%
  • Precise dynamic response to load change
  • Designed for long life under full stress
  • Strong input filters


Product Overview


480W Precision DC Rectifier,  

DIN-Rail Battery Charger, C/V Adjustable Industrial Power.  

Available Outputs:   24V,  36V,  48V,  60V,  72V,  110V,  150V,  220V,  300Vdc  

Description   The CPS-EC power supply series realizes very high power efficiency in a space-saving housing. Latest generation electrical devices relate to the high reliability of all CAMTEC products. The CAMTEC philosophy is, to employ 125°C low ESR ultra long life capacitors where expedient to achieve a superior lifetime of the product. The CPS-EC power supply is made for high reliable and demanding industrial applications, rail way, unbreakable power supply charger (DC-UPS), professional high power lighting (floodlight, production hall) and for telecom & demanding IT applications.

Current Setting Potentiometer   The output current limit can be adjusted with a 15 turn high precision potentiometer. The listed values are guaranteed by the factory. The tolerance of the upper margin is -0/+5%. The tolerance of the lower margin is -5%/+0%.

Output Current Monitoring   The CPS-EC power supply features a 0-5Vdc signal output. It is a realtime linear signal and indicates the current consumption of the load. The measuring point is directly at the output connection of the device.

Sensing   The device has a sense operation mode to compensate a voltage drop at the load line.

Inhibit contact (Interlock)   The inhibit inputs can be connected to a safety contact or a safety relay. When the contact is open the power supply will remain in a completely locked shut down mode. The unit powers up as soon as the contact is closed.

External Shutdown feature   All CPS-EC units are featured with a shutdown (open collector).

DC-ok Power Good Relay   The PG Relay connection indicates over temperature, low DC-voltage at the output, low AC supply voltage at the input, the inhibit and the shutdown mode.

Galvanic Isolation   The power supply is galvanic isolated between the input and the output. All features like Shut Down, Inhibit, Power Good Relay, Sensing and the Current Monitoring are connected to the DC power outputs.

Thermal shutdown   The CPS-EC series is featured with a thermal overload shut down and auto recovery behaviour.


Output Voltage See selection table
AC Input Voltage

90 – 132Vac / 184 – 265Vac

(115/230Vac input selector, factory setting is 230Vac)

Frequency 47-63Hz
DC Input Voltage

250Vdc – 375Vdc

(input selector set to 230Vac)

Input Rating

115Vac<8.8A 230Vac<4.3A

250Vdc<2.4A 375Vdc<1.6A<1.6A

Pnominal / Pmax 60 sec. 480W continuous / t.b.a.
Potentiometer C/V Setting 15 turn high precision, protective forced isolation to the inputs and the output 3000Vac
Operation Failure Relay Yes, break contact, protective forced isolation to the inputs and the output 3000Vac
Sense Function Compensation 1V per load line
Remote Shutdown Yes, protective forced isolation to the inputs and the output 3000Vac
Inhibit Function (Interlock) Yes, protective forced isolation to the inputs and the output 3000Vac
Derating +60°C...+70°C 2.5%/°C
Accuracy < ± 1.5% interface
Load Regulation < ± 0.05% 0-100%
Start up from Shutdown t.b.a.
Start up from Inhibit t.b.a.
Response to Load Change <1ms 10-100%, 100-10%
Base Load None required (open circuit proof)
Efficiency 230Vac Up to 92% at 90% load
Short Circuit Protection Continuous
Open Circuit Proof Continuous
Temperature Control Yes, thermal shutdown with auto recovery (+70°C, metering distance 10mm)
Hold Up Time >50ms 230Vac
Inrush Current <9,8Aeff < 13.8Apeak (230Vac) active inrush current limiter
Soft Start 100ms typical
Isolation paths > 8mm creepage distance & clearance paths
Input to Output Isolation 3000Vac
Input to Case Isolation 2500Vac
Output to Case 500Vdc , models ≥60Vdc 2300Vdc
Meantime By Failure (MTBF) 400000h (IEC61709)
Meantime To Failure (MTTF) 148312h (IEC61709)
Cooling Natural convection
Ambient Operating Temp. - 25°C…+70°C
Ambient Storage Temp. - 40°C…+85°C
Environment Humidity 95% non-condensing @ 25°C, climate class. 3k3, pollution rate II
ROHS 2011/65/EG confirmed
REACH EG No. 1907/2006 confirmed
EMI EN55022 class B
EMS EN61000-6-2,3
Safety EN60950-1, EN60204-1
Safety class 1(A) VDE0805, VDE0100
Dimensions (HxWxD) 130x200x114,5 mm
Weight 3000g
AC Terminals Input Screw Terminal 3x AWG20 – AWG6 / 0,5 – 16mm² (L,N,PE)
DC Terminals Output Screw Terminal 4x AWG20 – AWG6 / 0,5 – 16mm² (+ + / - - )

Selection Table

MODEL CPS-EC480.024CPS-EC480.036CPS-EC480.048CPS-EC480.060 CPS-EC480.072
Rated DC Voltage 24Vdc 36Vdc 48Vdc 60Vdc 72Vdc
Rated DC Current 20A 13,3A 10A 8A 6,7A

DC Voltage

Setting Range

24–30V 36–45V 48–58V 60–75V 72–90V

DC Current

Setting Range

10–21A 6,6–14A 5,0–10,5A 4,0–8,4A 3,4–7A



34Vdc 50Vdc 67Vdc 84Vdc 100Vdc

Ripple Peak

230Vac 20MHz

40mV 40mV 100mV 150mV 200mV
MODEL CPS-EC480.110CPS-EC480.150 CPS-EC480.220CPS-EC480.300
Rated DC Voltage 110Vdc 150Vdc 220Vdc 300Vdc
Rated DC Current 4,4A 3,2A 2,2A 1,6A

DC Voltage

Setting Range

110–137,5V 132–180V 220–264V 264–360V

DC Current

Setting Range

2,2–4,6A 1,6–3,3A 1,1–2,3A 0,8–1,7A



154Vdc 210Vdc 310Vdc 420Vdc

Ripple Peak

230Vac 20MHz

300mV 400mV 400mV 400mV

Technical Illustration

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