Battery Chargers

Schaefer B600 SERIES Battery Charger

The Schaefer B600 Series is a reliable, high-performance 500W battery charger designed to support industrial battery banks with nominal voltages of 12V, 24V, 48V, 60V, 110V, and 220Vdc. Engineered for robust performance, the B600 Series benefits from natural convection cooling and offers flexible mounting options, including wall mount, chassis mount, DIN-rail mount, and 19" rackmount via a 3U subrack. Optional features such as additional electrical protection, monitoring, conformal coating, and enhanced mechanical strength provide increased resilience, making the B600 Series ideal for demanding industrial applications. Certain models within the series hold railway Type Approvals including, Aurizon and Queensland Rail (Certificate C0192) for 12V, 24V, and 48Vdc configurations, ensuring compliance with stringent Australian railway standards.

Features

  • Industrial Grade 500W Battery Charger.
  • AC Input: 1-Phase and 3-Phase Models
  • Natural Convection Cooling with high temperature operation up to 75°C
  • Designed to support a wide range of industrial battery voltages including 12V, 24V, 48V, 60V, 110V and 220Vdc
  • Flexible mounting options via Chassis, Wall or Euro Cassette (19" rackmount via 3U subrack)
  • Several models variants hold Aurizon and Queensland Rail (C0192) Type Approval.
Specifications
INPUT
Input voltage

1ph: 115/230Vac

3ph: 200/400/480Vac 

Units will turn off with under or over input voltage.

No-load input power 3-6W model (series dependant)
Inrush current AC input limited by thermistor
Switch on time 1-2 seconds.
Input Options

Option au: Autoranging for 115/230Vac input

Option pr: Power OK via relay contacts

ENVIRONMENTAL
Operating temperature -20°C to +75°C (optional -40°C to +75°C)
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
OUTPUT
Output voltage

Voltage Range; 4.5 - 400Vdc 

(See Selection / Find the Right Model table)

Output current (See Selection / Find the Right Model 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 Programming Options: See selection table
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
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 according to MIL-HDBK-217E (Notice 1).
MECHANICAL
Mounting See technical illustrations Eurocassette, pluggable module for 19" subrack Option w: Wall Mounting Option cha: Chassis Mounting Option din: DIN Rail 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 115VAC 20 %

INPUT 230VAC +15% - 20%

INPUT 115 20 % / 230VAC +15 % - 20 %

INPUT 3X200VAC +15% - 20%

OUTPUT AMPS

COOLING HEATSINK

BATTERY CHARGER VOLTAGE

VOLTAGE ADJ. RANGE

B661 B681 B691 B661V 32 H 12 12-16
B662 B682 B692 B662V 16 H 24 24-32
B664 B684 B694 B664V 8 H 48 48-64
B666 B686 B696 B666V 6.4 H 60 60-80
B667 B687 B697 B667V 3.5 H 110 110-145
B668 B688 B698 B668V 1.8 H 220 220-290
 
Model configuration options: Add the options to the model number, eg. B688-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
CHARGER PROGRAMMING OPTIONS
Option "tc" Temperature compensated charging voltage(sensor not included)
Option "ts1" Temperature sensor, not interchangeable due to fixed resistor values
Option "ts2" Interchangeable, IC controlled
Option "ch1" Automatic selection of charging characteristic (float / equalize charge) with timer
Option "ch2" Additionally: Manual selection of charging characteristic
Option "ch3" Additionally: Boost charge operation (manually activated with time delayed return to normal operation)
ENVIRONMENTAL OPTIONS
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 to operate at ambient temperatures 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.
MECHANICAL OPTIONS
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 Mounting: Module is designed for installation to a structure or within cabinet. Screw type connectors are supplied with the module.
Option "din" DIN-Rail Mounting: Module is designed for DIN rail mounting to a structure or within Cabinet. Screw type connectors are supplied with the module.
 INPUT OPTIONS
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 OPTIONS
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 “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.
Technical Illustrations
Downloads
Schaefer_cb600-AC-DC-PS-BatteryChargers-DC-DC-Converters.pdf
INPUT
Input voltage

1ph: 115/230Vac

3ph: 200/400/480Vac 

Units will turn off with under or over input voltage.

No-load input power 3-6W model (series dependant)
Inrush current AC input limited by thermistor
Switch on time 1-2 seconds.
Input Options

Option au: Autoranging for 115/230Vac input

Option pr: Power OK via relay contacts

ENVIRONMENTAL
Operating temperature -20°C to +75°C (optional -40°C to +75°C)
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
OUTPUT
Output voltage

Voltage Range; 4.5 - 400Vdc 

(See Selection / Find the Right Model table)

Output current (See Selection / Find the Right Model 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 Programming Options: See selection table
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
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 according to MIL-HDBK-217E (Notice 1).
MECHANICAL
Mounting See technical illustrations Eurocassette, pluggable module for 19" subrack Option w: Wall Mounting Option cha: Chassis Mounting Option din: DIN Rail 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 115VAC 20 %

INPUT 230VAC +15% - 20%

INPUT 115 20 % / 230VAC +15 % - 20 %

INPUT 3X200VAC +15% - 20%

OUTPUT AMPS

COOLING HEATSINK

BATTERY CHARGER VOLTAGE

VOLTAGE ADJ. RANGE

B661 B681 B691 B661V 32 H 12 12-16
B662 B682 B692 B662V 16 H 24 24-32
B664 B684 B694 B664V 8 H 48 48-64
B666 B686 B696 B666V 6.4 H 60 60-80
B667 B687 B697 B667V 3.5 H 110 110-145
B668 B688 B698 B668V 1.8 H 220 220-290
 
Model configuration options: Add the options to the model number, eg. B688-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
CHARGER PROGRAMMING OPTIONS
Option "tc" Temperature compensated charging voltage(sensor not included)
Option "ts1" Temperature sensor, not interchangeable due to fixed resistor values
Option "ts2" Interchangeable, IC controlled
Option "ch1" Automatic selection of charging characteristic (float / equalize charge) with timer
Option "ch2" Additionally: Manual selection of charging characteristic
Option "ch3" Additionally: Boost charge operation (manually activated with time delayed return to normal operation)
ENVIRONMENTAL OPTIONS
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 to operate at ambient temperatures 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.
MECHANICAL OPTIONS
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 Mounting: Module is designed for installation to a structure or within cabinet. Screw type connectors are supplied with the module.
Option "din" DIN-Rail Mounting: Module is designed for DIN rail mounting to a structure or within Cabinet. Screw type connectors are supplied with the module.
 INPUT OPTIONS
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 OPTIONS
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 “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.
Schaefer_cb600-AC-DC-PS-BatteryChargers-DC-DC-Converters.pdf

Find the Right Model

Model Number Input Voltage (Vac) Output Voltage (Vdc) Output Current (A)
product variant B661 115Vac ± 20 % 50/60Hz 12Vdc (Adj. 12 - 16Vdc) 32A
product variant B662 115Vac ± 20 % 50/60Hz 24Vdc (Adj. 24 - 32Vdc) 16A
product variant B664 115Vac ± 20 % 50/60Hz 48Vdc (Adj. 48 - 64Vdc) 8A
product variant B666 115Vac ± 20 % 50/60Hz 60Vdc (Adj. 60 - 80VDc) 6.4A
product variant B667 115Vac ± 20 % 50/60Hz 110Vdc (Adj. 110 - 145VDc) 3.5A
product variant B668 115Vac ± 20 % 50/60Hz 220Vdc (Adj. 220 - 290Vdc) 1.8A
product variant B681 230Vac +15%/-20% 50/60Hz 12Vdc (Adj. 12 - 16Vdc) 32A
product variant B682 230Vac +15%/-20% 50/60Hz 24Vdc (Adj. 24 - 32Vdc) 16A
product variant B684 230Vac +15%/-20% 50/60Hz 48Vdc (Adj. 48 - 64Vdc) 8A
product variant B686 230Vac +15%/-20% 50/60Hz 60Vdc (Adj. 60 - 80VDc) 6.4A
product variant B687 230Vac +15%/-20% 50/60Hz 110Vdc (Adj. 110 - 145VDc) 3.5A
product variant B688 230Vac +15%/-20% 50/60Hz 220Vdc (Adj. 220 - 290Vdc) 1.8A
product variant B691 115Vac ± 20 % 50/60Hz or 230Vac +15%/-20% 50/60Hz 12Vdc (Adj. 12 - 16Vdc) 32A
product variant B692 115Vac ± 20 % 50/60Hz or 230Vac +15%/-20% 50/60Hz 24Vdc (Adj. 24 - 32Vdc) 16A
product variant B694 115Vac ± 20 % 50/60Hz or 230Vac +15%/-20% 50/60Hz 48Vdc (Adj. 48 - 64Vdc) 8A
product variant B696 115Vac ± 20 % 50/60Hz or 230Vac +15%/-20% 50/60Hz 60Vdc (Adj. 60 - 80VDc) 6.4A
product variant B697 115Vac ± 20 % 50/60Hz or 230Vac +15%/-20% 50/60Hz 110Vdc (Adj. 110 - 145VDc) 3.5A
product variant B698 115Vac ± 20 % 50/60Hz or 230Vac +15%/-20% 50/60Hz 220Vdc (Adj. 220 - 290Vdc) 1.8A
product variant B661V 3 x 200Vac +15%/-20% 50/60Hz 12Vdc (Adj. 12 - 16Vdc) 32A
product variant B662V 3 x 200Vac +15%/-20% 50/60Hz 24Vdc (Adj. 24 - 32Vdc) 16A
product variant B664V 3 x 200Vac +15%/-20% 50/60Hz 48Vdc (Adj. 48 - 64Vdc) 8A
product variant B666V 3 x 200Vac +15%/-20% 50/60Hz 60Vdc (Adj. 60 - 80VDc) 6.4A
product variant B667V 3 x 200Vac +15%/-20% 50/60Hz 110Vdc (Adj. 110 - 145VDc) 3.5A
product variant B668V 3 x 200Vac +15%/-20% 50/60Hz 220Vdc (Adj. 220 - 290Vdc) 1.8A

Need help finding the right product model?