DC/DC Converters

Schaefer C3700D SERIES DC/DC Converter

The Schaefer C3700D Series Industrial Grade DC/DC Converter delivers reliable power within a range of 1,000 W to 1,250 W, meeting the demands of industrial and energy markets. With DC input voltages spanning 18Vdc to 640Vdc and output voltages ranging from 5Vdc to 400Vdc, it supports both step-up and step-down configurations for versatile applications. Designed for stand-alone use or parallel-connected systems, the C3700D offers scalability and adaptability. Natural convection cooling ensures dependable performance, with active cooling required only for 5Vdc outputs. Flexible mounting options include wall mount, chassis mount, or 19" rackmount via a separate 6U subrack. Optional features such as monitoring, control, and enhanced environmental protection provide further customisation. Ideal for railway applications (ARTC Type Approval NESA-S061), Power Utilities (Generation, Transmission & Distribution), Renewable Energy, and Mining sectors, this series is built for environments where reliability is essential.

Features

  • Power Rating: 1,000 W to 1,250 W.
  • DC Input/Output: Input range 18Vdc to 640Vdc; output range 5Vdc to 400Vdc.
  • Cooling: Natural convection, with active cooling for 5Vdc output models.
  • Mounting: Wall mount, chassis mount, or 19" rackmount via a 6U subrack.
  • Optional Features: Monitoring, control, mechanical strength, and enhanced environmental protection.
  • Applications: ARTC-approved for railway use (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
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 18-36V OUTPUT AMPS INPUT 36-75V INPUT 45-90V INPUT 80-160V INPUT 160 – 320V INPUT 320 – 380 V INPUT 320 – 640V OUTPUT AMPS COOLING OUTPUT VDC OUTPUT RANGE
C3720 120(2) C3730 C3740 C3750 C3770 C3780Z C3770G 150 F 5 4.5 – 5.5
C3721 80 C3731 C3741 C3751 C3771 C3781Z C3771G 100 H 9 8 – 10
C3722 70 C3732 C3742 C3752 C3772 C3782Z C3772G 85 H 12 11 – 13
C3723 56 C3733 C3743 C3753 C3773 C3783Z C3773G 70 H 15 14 – 16
C3724 40 C3734 C3744 C3754 C3774 C3784Z C3774G 50 H 24 23 – 26
C3725 35 C3735 C3745 C3755 C3775 C3785Z C3775G 42 H 28 26 – 30
C3729 19 C3739 C3749 C3759 C3779 C3789Z C3779G 23 H 48 45 – 55
C3726 15 C3736 C3746 C3756 C3776 C3786Z C3776G 18 H 60 58 – 68
C3727 8 C3737 C3747 C3757 C3777 C3787Z C3777G 10 H 110 100 – 130
C3727J 5 C3737J C3747J C3757J C3777J C3787ZJ C3777GJ 6 H 200 190 – 200
C3728 4 C3738 C3748 C3758 C3778 C3788Z C3778G 5 H 220 200 – 250
C3728J 2.5 C3738J C3748J C3758J C3778J C3788ZJ C3778GJ 3 H 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. C3674-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.
PROGRAMMING SEREIS 200-5800, 6600
Of output voltage from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA By 10 turn potentiometer By 10 turn potentiometer eu1 eu2 eu3 eu4
Of output current from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA By 270° potentiometer By 10 turn potentiometer ei1 ei2 ei3 ei4 iso
Isolating amplifier for programming
Programming via interface RS232 or IEEE488
MONITORING SERIES 200-5800, 6600
Of output voltage from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA mu1 mu2
Of output current from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA mi1 mi2
Isolating amplifier for programming iso
Programming via interface RS232 or IEEE488
CHARGER PROGRAMMING (ALL SERIES)
Temperature compensated charging voltage(sensor not included) tc
Temperature sensor Not interchangeable due to fixed resistor values ts1
Interchangeable, IC controlled ts2
Automatic selection of charging characteristic (float / equalize charge) with timer ch1
Additionally: Manual selection of charging characteristic ch2
Additionally: Boost charge operation (manually activated with time delayed return to normal operation)
PROGRAMMING / MONITORING- SERIES 6400
Programming of output voltage and current from 0-100% including isolation By external signal, 0-10Vdc By external signal, 4-20mA e1 e2
Programming of output voltage from 0-100% By 270° potentiometer By 10 turn potentiometer eu1 eu2
Programming of output current from 0-100% By 270° potentiometer By 10 turn potentiometer ei3 ei4
Monitoring of output voltage and current from 0-100% including isolation By external signal, 0-10Vdc By external signal, 4-20mA m1 m2
Remote on/off programming and monitoring of output voltage and current from 0-100% including isolation By external signal, 0-10Vdc By external signal, 4-20mA Via RS232 and IEEE488 em1 em2 em3
Improved tolerance Between reference (external signal) and measured value / between measured value and displayed signal: voltage 0.2% and current 0.5%.
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_cb3700-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
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
INPUT 18-36V OUTPUT AMPS INPUT 36-75V INPUT 45-90V INPUT 80-160V INPUT 160 – 320V INPUT 320 – 380 V INPUT 320 – 640V OUTPUT AMPS COOLING OUTPUT VDC OUTPUT RANGE
C3720 120(2) C3730 C3740 C3750 C3770 C3780Z C3770G 150 F 5 4.5 – 5.5
C3721 80 C3731 C3741 C3751 C3771 C3781Z C3771G 100 H 9 8 – 10
C3722 70 C3732 C3742 C3752 C3772 C3782Z C3772G 85 H 12 11 – 13
C3723 56 C3733 C3743 C3753 C3773 C3783Z C3773G 70 H 15 14 – 16
C3724 40 C3734 C3744 C3754 C3774 C3784Z C3774G 50 H 24 23 – 26
C3725 35 C3735 C3745 C3755 C3775 C3785Z C3775G 42 H 28 26 – 30
C3729 19 C3739 C3749 C3759 C3779 C3789Z C3779G 23 H 48 45 – 55
C3726 15 C3736 C3746 C3756 C3776 C3786Z C3776G 18 H 60 58 – 68
C3727 8 C3737 C3747 C3757 C3777 C3787Z C3777G 10 H 110 100 – 130
C3727J 5 C3737J C3747J C3757J C3777J C3787ZJ C3777GJ 6 H 200 190 – 200
C3728 4 C3738 C3748 C3758 C3778 C3788Z C3778G 5 H 220 200 – 250
C3728J 2.5 C3738J C3748J C3758J C3778J C3788ZJ C3778GJ 3 H 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. C3674-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.
PROGRAMMING SEREIS 200-5800, 6600
Of output voltage from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA By 10 turn potentiometer By 10 turn potentiometer eu1 eu2 eu3 eu4
Of output current from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA By 270° potentiometer By 10 turn potentiometer ei1 ei2 ei3 ei4 iso
Isolating amplifier for programming
Programming via interface RS232 or IEEE488
MONITORING SERIES 200-5800, 6600
Of output voltage from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA mu1 mu2
Of output current from 0 to 100% By external signal, 0-10Vdc By external signal, 4-20mA mi1 mi2
Isolating amplifier for programming iso
Programming via interface RS232 or IEEE488
CHARGER PROGRAMMING (ALL SERIES)
Temperature compensated charging voltage(sensor not included) tc
Temperature sensor Not interchangeable due to fixed resistor values ts1
Interchangeable, IC controlled ts2
Automatic selection of charging characteristic (float / equalize charge) with timer ch1
Additionally: Manual selection of charging characteristic ch2
Additionally: Boost charge operation (manually activated with time delayed return to normal operation)
PROGRAMMING / MONITORING- SERIES 6400
Programming of output voltage and current from 0-100% including isolation By external signal, 0-10Vdc By external signal, 4-20mA e1 e2
Programming of output voltage from 0-100% By 270° potentiometer By 10 turn potentiometer eu1 eu2
Programming of output current from 0-100% By 270° potentiometer By 10 turn potentiometer ei3 ei4
Monitoring of output voltage and current from 0-100% including isolation By external signal, 0-10Vdc By external signal, 4-20mA m1 m2
Remote on/off programming and monitoring of output voltage and current from 0-100% including isolation By external signal, 0-10Vdc By external signal, 4-20mA Via RS232 and IEEE488 em1 em2 em3
Improved tolerance Between reference (external signal) and measured value / between measured value and displayed signal: voltage 0.2% and current 0.5%.
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_cb3700-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 C3720 18...36Vdc 5Vdc (Adj. 4.5 - 5.5Vdc) 120A
product variant C3721 18...36Vdc 9Vdc (Adj. 8 - 10Vdc) 80A
product variant C3722 18...36Vdc 12Vdc (Adj. 11 - 13Vdc) 70A
product variant C3723 18...36Vdc 15Vdc (Adj. 14 - 16Vdc) 56A
product variant C3724 18...36Vdc 24Vdc (Adj. 23 - 26Vdc) 40A
product variant C3725 18...36Vdc 28Vdc (Adj. 26 - 30Vdc) 35A
product variant C3729 18...36Vdc 48Vdc (Adj. 45 - 55Vdc) 19A
product variant C3726 18...36Vdc 60Vdc (Adj. 58 - 68Vdc) 15A
product variant C3727 18...36Vdc 110Vdc (Adj. 100 - 130Vdc) 8A
product variant C3727J 18...36Vdc 200Vdc (Adj. 190 - 200Vdc) 5A
product variant C3728 18...36Vdc 220Vdc (Adj. 200 - 250Vdc) 4A
product variant C3728J 18...36Vdc 400Vdc (Adj. 380 - 400Vdc) 2.5A
product variant C3730 36...75Vdc 5Vdc (Adj. 4.5 - 5.5Vdc) 150A
product variant C3731 36...75Vdc 9Vdc (Adj. 8 - 10Vdc) 100A
product variant C3732 36...75Vdc 12Vdc (Adj. 11 - 13Vdc) 85A
product variant C3733 36...75Vdc 15Vdc (Adj. 14 - 16Vdc) 70A
product variant C3734 36...75Vdc 24Vdc (Adj. 23 - 26Vdc) 50A
product variant C3735 36...75Vdc 28Vdc (Adj. 26 - 30Vdc) 42A
product variant C3739 36...75Vdc 48Vdc (Adj. 45 - 55Vdc) 23A
product variant C3736 36...75Vdc 60Vdc (Adj. 58 - 68Vdc) 18A
product variant C3737 36...75Vdc 110Vdc (Adj. 100 - 130Vdc) 10A
product variant C3737J 36...75Vdc 200Vdc (Adj. 190 - 200Vdc) 6A
product variant C3738 36...75Vdc 220Vdc (Adj. 200 - 250Vdc) 5A
product variant C3738J 36...75Vdc 400Vdc (Adj. 380 - 400Vdc) 3A
product variant C3740 45...90Vdc 5Vdc (Adj. 4.5 - 5.5Vdc) 150A
product variant C3741 45...90Vdc 9Vdc (Adj. 8 - 10Vdc) 100A
product variant C3742 45...90Vdc 12Vdc (Adj. 11 - 13Vdc) 85A
product variant C3743 45...90Vdc 15Vdc (Adj. 14 - 16Vdc) 70A
product variant C3744 45...90Vdc 24Vdc (Adj. 23 - 26Vdc) 50A
product variant C3745 45...90Vdc 28Vdc (Adj. 26 - 30Vdc) 42A
product variant C3749 45...90Vdc 48Vdc (Adj. 45 - 55Vdc) 23A
product variant C3746 45...90Vdc 60Vdc (Adj. 58 - 68Vdc) 18A
product variant C3747 45...90Vdc 110Vdc (Adj. 100 - 130Vdc) 10A
product variant C3747J 45...90Vdc 200Vdc (Adj. 190 - 200Vdc) 6A
product variant C3748 45...90Vdc 220Vdc (Adj. 200 - 250Vdc) 5A
product variant C3748J 45...90Vdc 400Vdc (Adj. 380 - 400Vdc) 3A
product variant C3750 80...160Vdc 5Vdc (Adj. 4.5 - 5.5Vdc) 150A
product variant C3751 80...160Vdc 9Vdc (Adj. 8 - 10Vdc) 100A
product variant C3752 80...160Vdc 12Vdc (Adj. 11 - 13Vdc) 85A
product variant C3753 80...160Vdc 15Vdc (Adj. 14 - 16Vdc) 70A
product variant C3754 80...160Vdc 24Vdc (Adj. 23 - 26Vdc) 50A
product variant C3755 80...160Vdc 28Vdc (Adj. 26 - 30Vdc) 42A
product variant C3759 80...160Vdc 48Vdc (Adj. 45 - 55Vdc) 23A
product variant C3756 80...160Vdc 60Vdc (Adj. 58 - 68Vdc) 18A
product variant C3757 80...160Vdc 110Vdc (Adj. 100 - 130Vdc) 10A
product variant C3757J 80...160Vdc 200Vdc (Adj. 190 - 200Vdc) 6A
product variant C3758 80...160Vdc 220Vdc (Adj. 200 - 250Vdc) 5A
product variant C3758J 80...160Vdc 400Vdc (Adj. 380 - 400Vdc) 3A
product variant C3770 160...320Vdc 5Vdc (Adj. 4.5 - 5.5Vdc) 150A
product variant C3771 160...320Vdc 9Vdc (Adj. 8 - 10Vdc) 100A
product variant C3772 160...320Vdc 12Vdc (Adj. 11 - 13Vdc) 85A
product variant C3773 160...320Vdc 15Vdc (Adj. 14 - 16Vdc) 70A
product variant C3774 160...320Vdc 24Vdc (Adj. 23 - 26Vdc) 50A
product variant C3775 160...320Vdc 28Vdc (Adj. 26 - 30Vdc) 42A
product variant C3779 160...320Vdc 48Vdc (Adj. 45 - 55Vdc) 23A
product variant C3776 160...320Vdc 60Vdc (Adj. 58 - 68Vdc) 18A
product variant C3777 160...320Vdc 110Vdc (Adj. 100 - 130Vdc) 10A
product variant C3777J 160...320Vdc 200Vdc (Adj. 190 - 200Vdc) 6A
product variant C3778 160...320Vdc 220Vdc (Adj. 200 - 250Vdc) 5A
product variant C3778J 160...320Vdc 400Vdc (Adj. 380 - 400Vdc) 3A
product variant C3780 320...380Vdc 5Vdc (Adj. 4.5 - 5.5Vdc) 150A
product variant C3781 320...380Vdc 9Vdc (Adj. 8 - 10Vdc) 100A
product variant C3782 320...380Vdc 12Vdc (Adj. 11 - 13Vdc) 85A
product variant C3783 320...380Vdc 15Vdc (Adj. 14 - 16Vdc) 70A
product variant C3784 320...380Vdc 24Vdc (Adj. 23 - 26Vdc) 50A
product variant C3785 320...380Vdc 28Vdc (Adj. 26 - 30Vdc) 42A
product variant C3789 320...380Vdc 48Vdc (Adj. 45 - 55Vdc) 23A
product variant C3786 320...380Vdc 60Vdc (Adj. 58 - 68Vdc) 18A
product variant C3787 320...380Vdc 110Vdc (Adj. 100 - 130Vdc) 10A
product variant C3787J 320...380Vdc 200Vdc (Adj. 190 - 200Vdc) 6A
product variant C3788 320...380Vdc 220Vdc (Adj. 200 - 250Vdc) 5A
product variant C3788J 320...380Vdc 400Vdc (Adj. 380 - 400Vdc) 3A
product variant C3770G 320...640Vdc 5Vdc (Adj. 4.5 - 5.5Vdc) 150A
product variant C3771G 320...640Vdc 9Vdc (Adj. 8 - 10Vdc) 100A
product variant C3772G 320...640Vdc 12Vdc (Adj. 11 - 13Vdc) 85A
product variant C3773G 320...640Vdc 15Vdc (Adj. 14 - 16Vdc) 70A
product variant C3774G 320...640Vdc 24Vdc (Adj. 23 - 26Vdc) 50A
product variant C3775G 320...640Vdc 28Vdc (Adj. 26 - 30Vdc) 42A
product variant C3779G 320...640Vdc 48Vdc (Adj. 45 - 55Vdc) 23A
product variant C3776G 320...640Vdc 60Vdc (Adj. 58 - 68Vdc) 18A
product variant C3777G 320...640Vdc 110Vdc (Adj. 100 - 130Vdc) 10A
product variant C3777GJ 320...640Vdc 200Vdc (Adj. 190 - 200Vdc) 6A
product variant C3778G 320...640Vdc 220Vdc (Adj. 200 - 250Vdc) 5A
product variant C3778GJ 320...640Vdc 400Vdc (Adj. 380 - 400Vdc) 3A

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