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BK Precision XLN3640
30V / 40A 1.44 kW Programmable DC Power Supply

  • Compact, high density, 1U package
  • USB and RS485 Interface
  • External analog programming interface
  • Easy to configure master/slave mode for series & parallel connection of up to 4 units
  • Control up to 31 power supplies from one PC synchronized via the RS485 interface
  • Application software providing remote control capabilities included
  • Programmable voltage and current slew rate allow for "soft starting" of loads
  • LabVIEW (TM) drivers available for the XLN3640
  • 5 V/1 A fixed output for auxiliary output
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BK Precision XLN3640 Shown

Product Information
Datasheet 442 KBPDF
Manual 3.3 MBPDF
Power Supply Guide 1 MB PDF
XLN Series Demo Video
PDF HelpPDF Help
B&K Precision Education Discount: Spend $5,000 or more, and get 10% off you buy any B&K Precision Units
The BK Precision XLN3640 programmable DC power supply delivers up to 1440 watts of clean power on a single output. The XLN3640 is a compact 1U high 19 inch wide supply was designed to meet the needs of both system integrators and bench top users. Cost effective USB & RS485 interfaces combined with fast average command processing times of less than 50 ms make the BK Precision XLN3640 ideal for ATE applications. Bench top users will benefit from the built-in voltage and current meters displaying setting and output values concurrently, as well as an intuitive user interface with full keypad and rotary knob.

The XLN3640 is perfectly suited for ATE systems integration, product design and development, product QC and burn-in testing, production, electro-plating and other applications requiring high, reliable power.
XLN3640 Specification 
Output rating Output voltage 0-36 V
Output current 0-40 A
Output Protection OVP Adjustments Range 2-38 V
OVP Accuracy 200 mV
Line Regulation Voltage ≤4 mV
Current ≤4 mV
Load Regulation Voltage ≤8 mV
Current ≤8 mV
Ripple and Noise (20Hz-20MHz) Normal Mode Voltage (Load ≥0.5 % of max load) ≤5 mVrms/≤60 mVpp
Normal Mode Current ≤90 mA
Programming resolution Programming & Readback 1mV/I mA
Programming Accuracy
(% output+offset)
Voltage 0.05 %+10 mV
Current 0.05 %+10 mA
Readback Accuracy
(% output+offset)
Voltage 0.05 %+10 mV
Current 0.05 %+10 mA
General Average Command Response Time ≤50 ms
Rise Time at Full & No Load ≤15 ms
Fall Time at Full/No Load ≤15 ms/≤1000 ms
Maximum Rated Input Power 1700 VA
Standard Interface USB
Dimensions 16.5 x 1.7 x 17 inch (420 x 43.6 x 432 mm)
Weight 19.8 lbs. (9 kg)
Ordering Information
Model Description Buy Online Price
XLN3640 BK Precision XLN3640 36V/40A/1.44 kW Programmable DC Power Supply  Buy Now Sale $1,836.95
(Reg. $2,100.00)
XLN3640-GL BK Precision XLN3640GL 36V/40A/1.44 kW Programmable DC Power Supply w/ GPIB/LAN  Buy Now Sale $2,142.95
(Reg. $2,450.00)
Included Accessories
  • 1 - Power Cord
  • 1 - Terminal Block for Rapid Plug Connector
  • 1 - Rackmount Kit
  • 1 - Instruction Manual
Optional Accessories
XLN485 BK Precision XLN485 RS485 Cable  Buy Now $11.00
XLNPC BK Precision XLNPC Replacement 120 Volt Power Cord for the XLN Series  Buy Now $21.00
XLNRC BK Precision XLNRC Replacement Rapid Output Connector  Buy Now Sale $69.95
(Reg. $80.00)