FlexKraft™ Air-Cooled Rectifiers provide premium DC power and performance for demanding industrial environments. Designed for 24/7 continuous operation under harsh conditions, the rectifiers include unique features such as Single and Multiple Outputs wth Optional Polarity Reversal, upgradeable power, self-serviceability and fail-safe operation.

With its modular design and an output ranging from 0-120V and 0-30,000A and a multitude of Control Options, we offer the flexibility to provide a best-fit solution to meet your most demanding process and application requirements.

The FlexKraft™ will help your business save money and become more competitive by reducing energy consumption and maintenance cost while increasing output and improving product quality. It’s not just another black box — it’s there to power your success.

With more than 80 years of experience, we won't let you down!

Click: FlexKraft Video Demo - Removal and Replacement of a Module.

https://youtu.be/8BPHGtFvOCk

 

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Unit of Measure
Items
FlexKraft FKA 1M

FlexKraft FKA 2M

FlexKraft FKA 3M

FlexKraft FKA 4M

FlexKraft FKA 5M
Alternating Current (AC) Supply Voltage N/A 480 VAC /- 10%, 60 Hz, 3 Phase N/A 480 VAC +/- 10%, 60 Hz, 3 Phase N/A 480 VAC +/- 10%, 60 Hz, 3 Phase N/A 480 VAC +/- 10%, 60 Hz, 3 Phase N/A 480 VAC +/- 10%, 60 Hz, 3 Phase
Electromagnetic Compatibility (EMC) Conformity N/A According to IEC 61000-6-4, Emissions, and IEC 61000-6-2, Immunity
Low Voltage Directive (LVD) Conformity N/A According to IEC 50178
Protection Class N/A IP 32
Power Factor at Rated Load N/A >0.93
Typical Efficiency at Rated Output N/A 0.90
Maximum Ambient Temperature N/A 104 ºF
Derated Operation Ambient Temperature N/A up to 122 ºF
Cooling N/A Forced Air-Cooling
Maximum Relative Humidity N/A 85 %
Control Precision (Voltage/Current) N/A <+/- 1 %
Direct Current (DC) Ripple N/A < 1% of rated output current at constant current mode in the entire range of regulation.
Regulation Range N/A Stepless at constant voltage or current 0-100 %
Duty Ratio N/A Designed for continuous operation at rated load up to 3300 ft altitude.
Protection N/A Module Failure Open circuit Over-current Over-temperature Over-voltage Short circuit
Direct Current (DC) Output Voltage N/A 0 to 12 V 0 to 15 V 0 to 24 V 0 to 30 V N/A 0 to 12 V 0 to 15 V 0 to 24 V 0 to 30 V 0 to 48 V 0 to 60 V N/A 0 to 12 V 0 to 15 V 0 to 24 V 0 to 30 V N/A 0 to 12 V 0 to 15 V 0 to 24 V 0 to 30 V 0 to 48 V 0 to 60 V N/A 0 to 12 V 0 to 15 V 0 to 24 V 0 to 30 V
Number of Power Modules N/A 1 N/A 2 N/A 3 N/A 4 N/A 5
Output Current at 0 to 12 Volt Direct Current (DC) Voltage N/A 600 A N/A 1200 A N/A 1800 A N/A 2400 A N/A 3000 A
Output Current at 0 to 12 Volt Direct Current (DC) Voltage (Dual Power Supply) N/A 2 x 300 A N/A 2 x 600 A N/A 2 x 900 A N/A 2 x 1200 A N/A 2 x 1500 A
Output Current at 0 to 15 Volt Direct Current (DC) Voltage N/A 500 A N/A 1000 A N/A 1500 A N/A 2000 A N/A 2500 A
Output Current at 0 to 15 Volt Direct Current (DC) Voltage (Dual Power Supply) N/A 2 x 250 A N/A 2 x 500 A N/A 2 x 750 A N/A 2 x 1000 A N/A 2 x 1250 A
Output Current at 0 to 24 Volt Direct Current (DC) Voltage N/A 300 A N/A 600 A N/A 900 A N/A 1200 A N/A 1500 A
Output Current at 0 to 30 Volt Direct Current (DC) Voltage N/A 250 A N/A 500 A N/A 750 A N/A 1000 A N/A 1250 A
Output Current at 0 to 48 Volt Direct Current (DC) Voltage N/A N/A 300 A N/A N/A 600 A N/A
Output Current at 0 to 60 Volt Direct Current (DC) Voltage N/A N/A 250 A N/A N/A 500 A N/A
Height N/A 18 " N/A 23 " N/A 29 " N/A 34 " N/A 40 "
Weight N/A 108 lbs N/A 168 lbs N/A 224 lbs N/A 243 lbs N/A 352 lbs
Footprint of Cabinet Width Including Busbars on the Rear Side N/A 20 in
Footprint of Cabinet Depth Including Busbars on the Rear Side N/A 24 in
Upgradable Output Power N/A If your future power requirements change, don't buy a new rectifier, simply add more power modules to your FlexKraft or reconfigure your existing FlexKraft to meet your updated requirements.
Serviceable N/A Simple design, easy accessibility, and self-diagnosing power modules makes the FlexKraft easy to trouble-shoot, service and repair.
Space-Saving N/A Compact design and capability to stack several units in one tower makes efficient use of shop floor space.
High Power Factor N/A >0.93 at rated load means no reative power penalty on your electricity bill and less strain on your local AC supply.
Ripple N/A Less than 2% of rated output current in the entire range of regulation. Typical value at nominal output current is less than 0.2%. This standard feature is perfect for ripple sensitive processes.
Modular Design N/A Any combination of power modules up to 120 VDC or 30,000 A can be supplied.
Options N/A *Analogue interface with four inputs and four outputs galvanically isolated. Control and status signals 0-10 VDC or 0/4-20 mA. *Analogue/Digital interface. Two controls, and two status signals 0-10 VDC and two controls and two status signals 24 VDC. *Digital interface with four inputs and four outputs. Control signals 24 VDC. Status signals via voltage free relay contacts; contact data 24 VDC or 24 VAC. Standard configuration: On/Off, Block/Run, Power On and Alarm. *Electrically controlled AC breaker. *External reference shunt, 60 mV. *Polarity Reversal. *Raise/Lower function. *Remote control options: ControlKraft Touch or ControlKraft Digital *RS-232C interface control of one dual power supply. *Standard configuration: Iset, Uset, lact and Uact: 0-10 VDC. On/Off, Block/Run, Power On and Alarm as digital signals: 24 VDC. *Standard configuration: lset, Uset, lact and Uact: 4-20 mA N/A *Analogue interface with four inputs and four outputs galvanically isolated. Control and status signals 0-10 VDC or 0/4-20 mA. *Analogue/Digital interface. Two controls, and two status signals 0-10 VDC and two controls and two status signals 24 VDC. *Digital interface with four inputs and four outputs. Control signals 24 VDC. Status signals via voltage free relay contacts; contact data 24 VDC or 24 VAC. Standard configuration: On/Off, Block/Run, Power On and Alarm. *Electrically controlled AC breaker. *External reference shunt, 60 mV. *Polarity Reversal. *Raise/Lower function. *Remote control options: ControlKraft Touch or ControlKraft Digital *RS-232C interface control of one dual power supply. *Standard configuration: Iset, Uset, lact and Uact: 0-10 VDC. On/Off, Block/Run, Power On and Alarm as digital signals: 24 VDC. *Standard configuration: lset, Uset, lact and Uact: 4-20 mA N/A *Analogue interface with four inputs and four outputs galvanically isolated. Control and status signals 0-10 VDC or 0/4-20 mA. *Analogue/Digital interface. Two controls, and two status signals 0-10 VDC and two controls and two status signals 24 VDC. *Digital interface with four inputs and four outputs. Control signals 24 VDC. Status signals via voltage free relay contacts; contact data 24 VDC or 24 VAC. Standard configuration: On/Off, Block/Run, Power On and Alarm. *Electrically controlled AC breaker. *External reference shunt, 60 mV. *Polarity Reversal. *Raise/Lower function. *Remote control options: ControlKraft Touch or ControlKraft Digital *RS-232C interface for control of one power supply. *Standard configuration: Iset, Uset, lact and Uact: 0-10 VDC. On/Off, Block/Run, Power On and Alarm as digital signals: 24 VDC. *Standard configuration: lset, Uset, lact and Uact: 4-20 mA N/A *Analogue interface with four inputs and four outputs galvanically isolated. Control and status signals 0-10 VDC or 0/4-20 mA. *Analogue/Digital interface. Two controls, and two status signals 0-10 VDC and two controls and two status signals 24 VDC. *Digital interface with four inputs and four outputs. Control signals 24 VDC. Status signals via voltage free relay contacts; contact data 24 VDC or 24 VAC. Standard configuration: On/Off, Block/Run, Power On and Alarm. *Electrically controlled AC breaker. *External reference shunt, 60 mV. *Polarity Reversal. *Raise/Lower function. *Remote control options: ControlKraft Touch or ControlKraft Digital *RS-232C interface for control of one power supply. *Standard configuration: Iset, Uset, lact and Uact: 0-10 VDC. On/Off, Block/Run, Power On and Alarm as digital signals: 24 VDC. *Standard configuration: lset, Uset, lact and Uact: 4-20 mA N/A *Analogue interface with four inputs and four outputs galvanically isolated. Control and status signals 0-10 VDC or 0/4-20 mA. *Analogue/Digital interface. Two controls, and two status signals 0-10 VDC and two controls and two status signals 24 VDC. *Digital interface with four inputs and four outputs. Control signals 24 VDC. Status signals via voltage free relay contacts; contact data 24 VDC or 24 VAC. Standard configuration: On/Off, Block/Run, Power On and Alarm. *Electrically controlled AC breaker. *External reference shunt, 60 mV. *Polarity Reversal. *Raise/Lower function. *Remote control options: ControlKraft Touch or ControlKraft Digital *RS-232C interface for control of one power supply. *Standard configuration: Iset, Uset, lact and Uact: 0-10 VDC. On/Off, Block/Run, Power On and Alarm as digital signals: 24 VDC. *Standard configuration: lset, Uset, lact and Uact: 4-20 mA
Manufacturer N/A KraftPowercon