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C4700D SERIES C4700D - Schaefer Euro Series DC/DC Converter

Features
  • 1200 - 2500W
  • Industrial Grade DC/DC Converter
  • High Operating Temp
  • Hot Pluggable
  • Wide Input Voltage
  • Configurable Options
  • Eurocassette Mounting
  • Wall Mounting
  • Chassis Mounting
Specification Sheet Make a Sales Enquiry

C4700D - Schaefer Euro Series DC/DC Converter

Product Overview

Schaefer Electronics 2,500 Watt DC/DC Converter, AC/DC Power Supply and Battery Charging Products.

Schaefer Euro Cassettes robust design, using industrial grade components, yields a highly efficient, space-saving solution for even the most extreme environments in industries such as railway controls and industrial equipment (onboard and track side), alternative energy applications, transportation, and process control systems.

2500W Power Converter - Efficient, Robust and Compact for Critical ApplicationsThe C4700 Series features an extensive lineup of over 200 standard models, with requests for modifications also welcomed. Nine standard DC input voltage options span an amazing range from 10VDC-800VDC. AC input models offer either 1-Phase or 3-Phase options as well as battery charging models. Single outputs are available in twelve standard ranges encompassing 4.5VDC-400VDC. All outputs are adjustable and fully regulated to 0.2% or better (load) and 0.1% (line).

DC/DC and AC/DC models have remote sense capability. The C4700 Series has comprehensive protection circuitry and efficiencies are up to 95%. Operating temperature is -20C to +75C, with -40C to +75C as an option.The units are packaged in a space saving 6U x 19” x 306mm (HxWxD) rack module, a wall mount module, or a newly introduced chassis mount configuration. Options include decoupling diodes for parallel / redundant operation, further mechanical ruggedization, inhibit, Power Fail / DC-OK alarms, system reset, and programming/monitoring functions.

Specifications

INPUT
Input voltage

DC Input voltage: 10 - 800Vdc

See selection table

Units will turn off with under or over input voltage.
No-load input
power		 5-6W model (series dependent)
Switch on time 1-2 seconds.
OUTPUT
Output voltage

Voltage range; 4.5 - 400Vdc

See selection table
Output current See selection table.
Ripple & noise 1% + 30mVpp
Line regulation 0.1% (±10%)
Load regulation 0.2% typical, load step 10-90%
Load transient 6% typical, load step 10-90%
Response time 2-3ms typical ±1%
Temperature coefficient 0.02% per °C typical.
Holdup time 10mS at 220VAC typical
Turn on rise time 100mS typical (soft start)
Remote sensing Standard for all series
Efficiency 80%-92% typical
Output Options

Option dd: Decoupling Diode for redundant / parallel operation

Option cs: Active Current Sharing

Option h: Remote on/off (inhibit)

Option dr: DC OK via relay contacts
PROTECTION
Overload protection Current limited at 105%–110% of full load.
Overvoltage protection OVP switches off module with automatic return to operation
Protection Options

Option i: Inrush Current Limiting

Option sd: Reverse polarity protection for DC input by Series Diode
MTBF

100Khrs to 140Khrs at 40°C

acc. to MIL-HDBK-217E (notice 1)
ENVIRONMENTAL
Operating temperature

-20°C to +75°C

(optional -40 to 75C)
Load derating Derate 2.5% per °C, from +55°C to 75°C
Cooling

H: Heatsink - natural convection

F: Fan - increased airflow recommended

TF: Temperature controlled Fan included

See selection table
Environment Options

Option c: Extended temperature range to -40°C
Storage temperature -40°C to +85°C
Humidity Up to 95% RH, non-condensing
STANDARDS
EMI standards acc. to EN61000-6-4 class A, optionally class B
Immunity standards acc. to EN61000-6-2
C-Tick AS/NZS CISPR11: 2002 Group1 Class A
Safety / Construction acc. to EN60950-1 / EN50178
Protection category

IP20 acc. to EN60529

NEMA or others on request
MECHANICAL
Mounting

See technical illustrations

Eurocassette, pluggable module for 19" subrack

Option w: Wall Mounting

Option cha: Chassis Mounting
Dimensions See Technical illustration
Connector

H15 acc. to DIN 41612 H15

and high current connectors for I > 50A,

or terminals / bolts / bars
Mechanical Options

Option ms: Increased Mechanical Strength

Option t: Tropical protection

19" Rack Mounting

Options

Subrack Height 3U, 5U, 6U

Wiring, Front Panels

Accessories: Fuses, MCBs, Mains on/off switch

Contact Powerbox for rack configuration

Selection Table

INPUT

10 -16V

OUTPUT

AMPS

        

INPUT

20 -32V

OUTPUT

AMPS

       

INPUT

40 - 64V

INPUT

50 - 80V

OUTPUT

AMPS

         

INPUT

80-160V

INPUT

160-320V

INPUT

320 - 380V

INPUT

320 - 640V

INPUT

450-800V

OUTPUT

AMPS

      

   COOLING    

OUTPUT

VDC

OUTPUT

RANGE
C4700 100   C4720 160   C4730 C4740 180   C4750 C4770 C4780Z C4770G C4770K 180    F 5 4.5-5.5
C4701 80   C4721 110   C4731 C4741 140   C4751 C4771 C4781Z C4771G C4771K 150    F 9 8-10
C4702 68   C4722 95   C4732 C4742 120   C4752 C4772 C4782Z C4772G C4772K 130    F 12 11-13
C4703 58   C4723 80   C4733 C4743 100   C4753 C4773 C4783Z C4773G C4773K 110    F 15 14-16
C4704 46   C4724 60   C4734 C4744 75   C4754 C4774 C4784Z C4774G C4774K 80    F 24 23-26
C4705 40   C4725 50   C4735 C4745 65   C4755 C4775 C4785Z C4775G C4775K 70    F 28 26-30
C4709 22   C4729 30   C4739 C4749 38   C4759 C4779 C4789Z C4779G C4779K 40    F 48 45-55
C 4706 18   C4726 25   C4736 C4746 31   C4756 C4776 C4786Z C4776G C4776K 33    F 60 58-68
C4707 10   C4727 13   C4737 C4747 18   C4757 C4777 C4787Z C4777G C4777K 20    F 110 100-130
C4707J 6   C4727J 7   C4737J C4747J 10   C4757J C4777J C4787ZJ C4777GJ C4777KJ 10    F 200 190-200
C4708 5   C4728 7   C4738 C4748 10   C4758 C4778 C4788 Z C4778G C4778K 10    F 220 200-250
C4708J 3   C4728J 3.5   C4738J C4748J 5   C4758J C4778J C4788ZJ C4778GJ C4778KJ 5    F 400 380-400

Cooling

H: Heatsink - natural convection

F: Fan - increased airflow recommended

TF: Temperature controlled Fan included

See selection table

Model configuration options:

Add the options to the model number, eg. C4708-dd-dr-cs

Options for Input, Output, Environmental and Mechanical follow.
19" Rack Mounting Options

Subrack Height 3U, 5U, 6U

Wiring, Front Panels

Accessories: Fuses, MCBs, Mains on/off switch

Contact Powerbox for rack configuration
OPTIONS
INPUT
Option “i” (inrush current limiting): A thermistor is connected in series with the
input lines which changes its resistance from high to low when it gets hot. It does
not reduce the current surge if the input power is interrupted for a short period of
time not allowing the thermistor to cool down. Thermistors are fitted as standard
to all mains input models except for 1-phase input of models > 2.5kW.
Thermistors are available up to 45A. For higher input current an electronic inrush
current limitation can be offered.
Option “ie” electronic inrush current limiting An electronic circuit limits the inrush
current.
Option “sd” (series diode): A series diode protects the module against input
voltage of wrong polarity (additional power losses).
Option “ad” (anti-parallel diode): To avoid the power losses of a series diode a diode is
provided with opposite polarity in parallel to the input blowing an internal or external
fuse if the module is connected to a supply with wrong polarity.
Option “au” (auto-ranging) For standard dual AC input models the range of
115/230Vac is to be selected by connecting the input line to different pins on the
connector. With auto-ranging the unit senses the input voltage and provides
automatically the correct connection.
Option “p” (power fail): A signal (logic or relay) is given if the input voltage (AC or
DC) drops below the specified limit. In AC input units we sense the rectified input
voltage so that a power fail alarm will not be triggered if at light loads mains
power returns before the input capacitors are substantially discharged.
Option “r” (relay): A relay instead of a logic signal is provided for failure indication.
output
Option “dd” (decoupling diode): For redundant operation the outputs of two or
more units are paralleled behind de-coupling diodes so that an internal fault of
one module does not affect the operation of the others. These diodes cause power
losses.
Option “cs” (active current sharing): An additional control circuit provides active
current sharing via an interconnecting wire between converters that operate in
parallel. Active current sharing should be used for multi-output units operating in
parallel.
Option “csi” (current sharing interrupt): Option "csi" will effect the removal of the
"cs" signal. Should there be an instance where a unit is not supplying the load,
then the effect of its "cs" signal is removed, and the load voltage is unaffected by
this condition.
Option “h1” (inhibit): A terminal connected to the negative input line also shuts off the
converter. This can also be used in conjunction with a thermal trip which shuts the unit
down.
Option “h2” (inhibit): Operation of the unit is inhibited if a voltage signal
(5V/10mA) is applied in reference to the negative line of the (main) output.
Option “rco” (reducing current limiting at over temperature) A circuit reduces the
current limiting level at higher temperature (to be specified).
Option “d” (DC-ok, one output): A logic signal is given if the output voltage (main
output in multi-output systems) is below the specified limit.
Option “m” (DC-ok, all outputs): In multi-output systems a logic signal is provided
if the voltage of any output is below the specified limit.
Option “ac” (AC ok) A logic signal connected to relay contacts is given if the
output voltage of an inverter is below the specified limit.
Option "y" (sys-reset): This logic signal is a combination of power fail and DC-ok
as specified for VME systems.
Option "r" (relay): A relay instead of a logic signal is provided for failure
indication.
environment
Option "t" (tropical protection):The unit is given additional protection by a heavy
coat of varnish on the printed circuit board(s) and components.
Option "c" (extended temperature range):The circuit is designed and tested for
operation at an ambient temperature as low as –40 °C.
Option "ms" (increased mechanical strength): Screws are secured by Locktite and
heavy components are fastened by ties and/or glue. Modules with the "ms" option
meet the standard EN61373 regarding shock and vibration.
mechanics
Standard mounting "Eurocassette" pluggable module for 19" sub-racks 8
Option "w" (wall mounting): Module is screwed against a mounting plate for
installation in a cabinet. The load connections are typically a terminal block.
Option "cha" (chassis mount) Module is designed for installation to a structure or
within cabinet. Screw type connectors are supplied with the module.
Option "din" (DIN rail mount) Module is designed for DIN rail mounting to a
structure or within Cabinet. Screw type connectors are supplied with the module.

Technical Illustration

  • C4700 C4700
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