DC/DC Converters

Schaefer C3800D SERIES DC/DC Converter

The Schaefer C3800D Series Industrial Grade DC/DC Converter is a robust and versatile power solution, delivering outputs from 2 kW to 2.5 kW. With support for DC input voltages between 18Vdc and 800Vdc and output voltages ranging from 12Vdc to 400Vdc, this series accommodates both step-up and step-down configurations. Designed for use as a stand-alone unit or within parallel-connected systems, the C3800D offers scalability for larger or redundant setups. Cooling is achieved through natural convection, with active cooling required only for 12Vdc and 15Vdc output models. Mounting flexibility includes wall mount and 19" rackmount options via a separate 6U subrack. Optional features such as monitoring, control, and enhanced environmental protection extend its customisation capabilities. Ideal for demanding applications in railway (ARTC Type Approval NESA-S061), power utilities (generation, transmission, and distribution), renewable energy, and mining industries, the C3800D ensures reliable performance in critical environments.

Features

  • Power Rating: 2 kW to 2.5 kW.
  • DC Input/Output: Input range 18Vdc to 800Vdc; output range 12Vdc to 400Vdc.
  • Cooling: Natural convection, with active cooling for 12Vdc and 15Vdc output versions.
  • Mounting: Wall mount or 19" rackmount via a 6U subrack.
  • Optional Features: Monitoring, control, mechanical strength, and enhanced environmental protection.
  • Applications: Railway (ARTC Type Approval NESA-S061), Power Utilities, Renewable Energy, and Mining industries.
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
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

18 –32V

OUTPUT

AMPS

INPUT

36-75V

INPUT

45-90V

INPUT

80-160V

INPUT

160 – 320V

INPUT

320 – 380V

INPUT

320 – 640V

INPUT

450 – 800V

COOLING

OUTPUT

AMPS

 

OUTPUT

VDC

OUTPUT

RANGE

C3822 120 C3832 C3842 C3852 C3872 C3882Z C3872G C3872K F 160 12 11 – 13
C3823 100 C3833 C3843 C3853 C3873 C3883Z C3873G C3873K F 130 15 14 – 16
C3824 75 C3834 C3844 C3854 C3874 C3884Z C3874G C3874K H 100 24 23 – 26
C3825 65 C3835 C3845 C3855 C3875 C3885Z C3875G C3875K H 85 28 26 – 30
C3829 38 C3839 C3849 C3859 C3879 C3889Z C3879 G C3879K H 45 48 45 – 55
C3826 30 C3836 C3846 C3856 C3876 C3886Z C3876 G C3876K H 36 60 58 – 68
C3827 15 C3837 C3847 C3857 C3877 C3887Z C3877G C3877K H 20 110 100 – 130
C3827J 10 C3837J C3847J C3857J C3877J C3887ZJ C3877GJ C3877KJ H 12 200 190 – 200
C3828 8 C3838 C3848 C3858 C3878 C3888Z C3878G C3878K H 10 220 200 – 250
C3828J 5 C3838J C3848J C3858J C3878J C3888ZJ C3878GJ C3878KJ H 6 400 380 – 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. C3877-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 Illustrations
Downloads
Schaefer_cb3800-AC-DC-PS-BatteryChargers-DC-DC-Converters.pdf
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
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

INPUT

18 –32V

OUTPUT

AMPS

INPUT

36-75V

INPUT

45-90V

INPUT

80-160V

INPUT

160 – 320V

INPUT

320 – 380V

INPUT

320 – 640V

INPUT

450 – 800V

COOLING

OUTPUT

AMPS

 

OUTPUT

VDC

OUTPUT

RANGE

C3822 120 C3832 C3842 C3852 C3872 C3882Z C3872G C3872K F 160 12 11 – 13
C3823 100 C3833 C3843 C3853 C3873 C3883Z C3873G C3873K F 130 15 14 – 16
C3824 75 C3834 C3844 C3854 C3874 C3884Z C3874G C3874K H 100 24 23 – 26
C3825 65 C3835 C3845 C3855 C3875 C3885Z C3875G C3875K H 85 28 26 – 30
C3829 38 C3839 C3849 C3859 C3879 C3889Z C3879 G C3879K H 45 48 45 – 55
C3826 30 C3836 C3846 C3856 C3876 C3886Z C3876 G C3876K H 36 60 58 – 68
C3827 15 C3837 C3847 C3857 C3877 C3887Z C3877G C3877K H 20 110 100 – 130
C3827J 10 C3837J C3847J C3857J C3877J C3887ZJ C3877GJ C3877KJ H 12 200 190 – 200
C3828 8 C3838 C3848 C3858 C3878 C3888Z C3878G C3878K H 10 220 200 – 250
C3828J 5 C3838J C3848J C3858J C3878J C3888ZJ C3878GJ C3878KJ H 6 400 380 – 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. C3877-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.
Schaefer_cb3800-AC-DC-PS-BatteryChargers-DC-DC-Converters.pdf

Find the Right Model

Model Number Input Voltage (Vdc) Output Voltage (Vdc) Output Current (A)
product variant C3822 18...32Vdc 12Vdc (Adj. 11 - 13Vdc) 120A
product variant C3823 18...32Vdc 15Vdc (Adj. 14 - 16Vdc) 100A
product variant C3824 18...32Vdc 24Vdc (Adj. 23 - 26Vdc) 75A
product variant C3825 18...32Vdc 28Vdc (Adj. 26 - 30Vdc) 65A
product variant C3829 18...32Vdc 48Vdc (Adj. 45 - 55Vdc) 38A
product variant C3826 18...32Vdc 60Vdc (Adj. 58 - 68Vdc) 30A
product variant C3827 18...32Vdc 110Vdc (Adj. 100 - 130Vdc) 15A
product variant C3827J 18...32Vdc 200Vdc (Adj. 190 - 200Vdc) 10A
product variant C3828 18...32Vdc 220Vdc (Adj. 200 - 250Vdc) 8A
product variant C3828J 18...32Vdc 400Vdc (Adj. 380 - 400Vdc) 5A
product variant C3832 36...75Vdc 12Vdc (Adj. 11 - 13Vdc) 160A
product variant C3833 36...75Vdc 15Vdc (Adj. 14 - 16Vdc) 130A
product variant C3834 36...75Vdc 24Vdc (Adj. 23 - 26Vdc) 100A
product variant C3835 36...75Vdc 28Vdc (Adj. 26 - 30Vdc) 85A
product variant C3839 36...75Vdc 48Vdc (Adj. 45 - 55Vdc) 45A
product variant C3836 36...75Vdc 60Vdc (Adj. 58 - 68Vdc) 36A
product variant C3837 36...75Vdc 110Vdc (Adj. 100 - 130Vdc) 20A
product variant C3837J 36...75Vdc 200Vdc (Adj. 190 - 200Vdc) 12A
product variant C3838 36...75Vdc 220Vdc (Adj. 200 - 250Vdc) 10A
product variant C3838J 36...75Vdc 400Vdc (Adj. 380 - 400Vdc) 6A
product variant C3842 45...90Vdc 12Vdc (Adj. 11 - 13Vdc) 160A
product variant C3843 45...90Vdc 15Vdc (Adj. 14 - 16Vdc) 130A
product variant C3844 45...90Vdc 24Vdc (Adj. 23 - 26Vdc) 100A
product variant C3845 45...90Vdc 28Vdc (Adj. 26 - 30Vdc) 85A
product variant C3849 45...90Vdc 48Vdc (Adj. 45 - 55Vdc) 45A
product variant C3846 45...90Vdc 60Vdc (Adj. 58 - 68Vdc) 36A
product variant C3847 45...90Vdc 110Vdc (Adj. 100 - 130Vdc) 20A
product variant C3847J 45...90Vdc 200Vdc (Adj. 190 - 200Vdc) 12A
product variant C3848 45...90Vdc 220Vdc (Adj. 200 - 250Vdc) 10A
product variant C3848J 45...90Vdc 400Vdc (Adj. 380 - 400Vdc) 6A
product variant C3852 80...160Vdc 12Vdc (Adj. 11 - 13Vdc) 160A
product variant C3853 80...160Vdc 15Vdc (Adj. 14 - 16Vdc) 130A
product variant C3854 80...160Vdc 24Vdc (Adj. 23 - 26Vdc) 100A
product variant C3855 80...160Vdc 28Vdc (Adj. 26 - 30Vdc) 85A
product variant C3859 80...160Vdc 48Vdc (Adj. 45 - 55Vdc) 45A
product variant C3856 80...160Vdc 60Vdc (Adj. 58 - 68Vdc) 36A
product variant C3857 80...160Vdc 110Vdc (Adj. 100 - 130Vdc) 20A
product variant C3857J 80...160Vdc 200Vdc (Adj. 190 - 200Vdc) 12A
product variant C3858 80...160Vdc 220Vdc (Adj. 200 - 250Vdc) 10A
product variant C3858J 80...160Vdc 400Vdc (Adj. 380 - 400Vdc) 6A
product variant C3872 160...320Vdc 12Vdc (Adj. 11 - 13Vdc) 160A
product variant C3873 160...320Vdc 15Vdc (Adj. 14 - 16Vdc) 130A
product variant C3874 160...320Vdc 24Vdc (Adj. 23 - 26Vdc) 100A
product variant C3875 160...320Vdc 28Vdc (Adj. 26 - 30Vdc) 85A
product variant C3879 160...320Vdc 48Vdc (Adj. 45 - 55Vdc) 45A
product variant C3876 160...320Vdc 60Vdc (Adj. 58 - 68Vdc) 36A
product variant C3877 160...320Vdc 110Vdc (Adj. 100 - 130Vdc) 20A
product variant C3877J 160...320Vdc 200Vdc (Adj. 190 - 200Vdc) 12A
product variant C3878 160...320Vdc 220Vdc (Adj. 200 - 250Vdc) 10A
product variant C3878J 160...320Vdc 400Vdc (Adj. 380 - 400Vdc) 6A
product variant C3882Z 320...380Vdc 12Vdc (Adj. 11 - 13Vdc) 160A
product variant C3883Z 320...380Vdc 15Vdc (Adj. 14 - 16Vdc) 130A
product variant C3884Z 320...380Vdc 24Vdc (Adj. 23 - 26Vdc) 100A
product variant C3885Z 320...380Vdc 28Vdc (Adj. 26 - 30Vdc) 85A
product variant C3889Z 320...380Vdc 48Vdc (Adj. 45 - 55Vdc) 45A
product variant C3886Z 320...380Vdc 60Vdc (Adj. 58 - 68Vdc) 36A
product variant C3887Z 320...380Vdc 110Vdc (Adj. 100 - 130Vdc) 20A
product variant C3887ZJ 320...380Vdc 200Vdc (Adj. 190 - 200Vdc) 12A
product variant C3888Z 320...380Vdc 220Vdc (Adj. 200 - 250Vdc) 10A
product variant C3888ZJ 320...380Vdc 400Vdc (Adj. 380 - 400Vdc) 6A
product variant C3872G 320...640Vdc 12Vdc (Adj. 11 - 13Vdc) 160A
product variant C3873G 320...640Vdc 15Vdc (Adj. 14 - 16Vdc) 130A
product variant C3874G 320...640Vdc 24Vdc (Adj. 23 - 26Vdc) 100A
product variant C3875G 320...640Vdc 28Vdc (Adj. 26 - 30Vdc) 85A
product variant C3879G 320...640Vdc 48Vdc (Adj. 45 - 55Vdc) 45A
product variant C3876G 320...640Vdc 60Vdc (Adj. 58 - 68Vdc) 36A
product variant C3877G 320...640Vdc 110Vdc (Adj. 100 - 130Vdc) 20A
product variant C3877GJ 320...640Vdc 200Vdc (Adj. 190 - 200Vdc) 12A
product variant C3878G 320...640Vdc 220Vdc (Adj. 200 - 250Vdc) 10A
product variant C3878GJ 320...640Vdc 400Vdc (Adj. 380 - 400Vdc) 6A
product variant C3872K 450...800Vdc 12Vdc (Adj. 11 - 13Vdc) 160A
product variant C3873K 450...800Vdc 15Vdc (Adj. 14 - 16Vdc) 130A
product variant C3874K 450...800Vdc 24Vdc (Adj. 23 - 26Vdc) 100A
product variant C3875K 450...800Vdc 28Vdc (Adj. 26 - 30Vdc) 85A
product variant C3879K 450...800Vdc 48Vdc (Adj. 45 - 55Vdc) 45A
product variant C3876K 450...800Vdc 60Vdc (Adj. 58 - 68Vdc) 36A
product variant C3877K 450...800Vdc 110Vdc (Adj. 100 - 130Vdc) 20A
product variant C3877KJ 450...800Vdc 200Vdc (Adj. 190 - 200Vdc) 12A
product variant C3878K 450...800Vdc 220Vdc (Adj. 200 - 250Vdc) 10A
product variant C3878KJ 450...800Vdc 400Vdc (Adj. 380 - 400Vdc) 6A

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