1685B Series

300W-360W Switching Bench DC Power Supplies

Model BK1687B

2 Year Warranty

The B&K Precision 1685B, 1687B, and 1688B switching mode DC power supplies provide various configurations of high output voltage or high output current in a small, lightweight form factor. In addition to their constant voltage (CV) and constant current (CC) modes, these high efficiency DC power supplies offer unique preset and remote control modes. Up to three different presets of voltage and current values can be saved for quick recall through a rear switch. For remote control, an analog remote control terminal is accessible on the rear, or use the USB interface to communicate with the power supply via PC software or remote commands. These features make the 1685B, 1687B, and 1688B suitable for a wide range of applications including production testing, telecommunications, R&D, electronic field service, and university labs.

  • Automatic CV/CC crossover operation
  • Lightweight and compact
  • Rotary encoder control for precise voltage and current setting
  • 3 user-defined voltage and current presets
  • USB interface with PC software for remote control and external timed programming
  • Analog remote control function
  • Overvoltage, overtemperature, and overload protection
 
Model Guide
Model 1685B 1687B 1688B
Output Voltage 1-60 V 1-36 V 1-18 V
Output Current 0-5 A 0-10 A 0-20 A

Software

Note/Description Version File Link
1685B Series Software Readme / Notes d'installation n/a 1685B_Series_Software_Readme.txt
HCS Operating Software /Logiciel d'exploitation HCS (Supports Windows (R) 7) 0.9 168xB_hcs_software.zip
DRIVERS USB (Windows 7/8/8.1/10) V6.7.5 CP210X_USB_Driver.zip
USBTMC Driver Installation Note - Note d'installation des drivers 1.0 USBTMC_Driver_Readme.txt
  • 5A Hook-Up Cable Set

    5A Hook-Up Cable Set

    Model TL 5A
    • 4mm Banana plug to alligator clip
    • 5A rating
    • Black and Red pair
    • 40" (1.0m) length
  • Power Supply Test Leads Set

    Power Supply Test Leads Set

    Model TLPS

    This accessory kit combines safety and functionality. A must have for anyone who uses power supplies or loads.

    • Medium and large insulated alligator clips
    • Black and red components
    • Sense lead included
    Description Max current
    Red and black test lead (120 cm) 25 A
    Spade lug adapters (6 & 4 mm) 36 A
    Standard alligator clips 3 A
    4 mmBanana plug adapters 36 A
    Large insulated alligator clips 36 A
    Red and black sense leads (10 cm) 3 A
  • High current premium test lead accessory

    High current premium test lead accessory

    Model TLPWR1

      High quality red and black cable with externally braided wrap with large fork-type spade connectors for connecting to high current power supplies or DC loads.

    • Length: 2 m
    • Rated current: 60 A
    • Gauge: 8 AWG
    • Connector inner diameter: 8 mm (approximate)
    • Connector outter width: 15 mm (approximate)
    • Wire material: flexible silicon jacket
  • 100 cm Premium Spade Connector Test Lead Set

    100 cm Premium Spade Connector Test Lead Set

    Model TLPWR31

    High quality red and black cable dual diameter spade connectors for connecting to power supplies or DC loads.

    • Length: 1 meter
    • Rated current: 30 A
    • Connectors: 6/4 mm Spade lug
    • Wire material: flexible silicon jacket

     

  • 200 cm Premium Spade Connector Test Lead Set

    200 cm Premium Spade Connector Test Lead Set

    Model TLPWR32

    High quality red and black cable dual diameter spade connectors for connecting to power supplies or DC loads.

    • Length: 2 meter
    • Rated current: 30 A
    • Connectors: 6/4 mm Spade lug
    • Wire material: flexible silicon jacket