Contact the closest office: 1-800-358-5525

   

BK Precision High Current DC Power Supplies

Model 1689     *     Model 1690

Regulated 28A DC Power Supply 

    The new B+K Precision Regulated 28A DC Power Supplies 1689 & 1690 offer multiple DC output terminals; two pairs of 3A, snap-in DC connectors are easily accessible on the front panel, and a pair of 28A screw-on DC output terminals are located on the rear panel. 

    Both models provide their maximum current output continuously hour after hour without thermal drifting.  They are ideal car battery substitutions for servicing or demonstrating high power car stereo, cellular phone products, or even ham radio. 
     

  • 1VDC to 15VDC Variable Output 
  • 28A Output at =13.5VDC 
  • Overload pprotection 
  • High RFI stability 
  • Multiple DC Output Terminals

Buy It Now !  Ordering Info

Specifications models
  1689 1690
DC Output MAX Ratings  
Voltage 1 - 15V
Current *28A (@ 13.8V)
Line Regulation 5mV (+-2% Load)
Load Regulation 50mV (0-100% Load)
Ripple & Noise (RMS) 5mV
Operating Voltage 120VAC, 60 Hz
Dimension (WxHxD) 9.84x5.5x8.86'' (250x140x225mm)
Weight 19.9 lbs. (9 kg)
Display Precision Analog
Digital LED
One Year Warranty
Accessories
SUPPLIED: User Manual

Model 1686A      *     Model 1688A

Buy It Now !  Ordering Info

Variable Voltage - 3 to 14 volts DC output 

  • 20 A guaranteed @ 13.8V (Model 1688) 
  • 12 A guaranteed @ 13.8V (Model 1686) 
  • Current limiting overload protection 
  • Over voltage protection 
  • Short circuit protection 
  • Reverse polarity protection 
  • Thermostatically controlled cooling fan 
  • Thermal protection 
  • Operates continuously at full load without overheating 
  • Connect two in parallel for more current 
  • Connect two in series for higher voltage 

Specifications models
  1686A 1688A
Output  
Output Voltage 3 to 14 VDC
Output Current Proportional to Output Voltage
DCV Output-Max DCA 3V - 2.5A
5V - 4.5A
9V - 7.5A
12V - 10A
13.8V - 12A
14V - 12A		 3V - 4.5A
5V - 7.5A
9V - 13A
12V - 20A
13.8V - 20A
14V - 20A
Line Regulation (108 - 132 VAC) <= 0.8%
Ripple & Noise <= 10 mV rms.
Metering  
Voltmeter Range 0-20V 0-30V
Voltmeter Accuracy +-7% F.S
Ammeter Range 0-20A 0-30A
Ammeter Accuracy +-7% F.S
General
Power Requirements 120/220 VAC +- 10%, 50/60 Hz.
Power Consumption 400 W 580 W
Operating Temperature 32 0 to 104 0 F (0 0 to 40 0 C), <= 85% R.H.
Storage Temperature 5 0 to 158 0 F (-15 0 to 70 0 C), <= 75% R.H.
Dimensions (HxWxD) 5.5x5.9x12'' (140x150x305 mm)
Weight 12.1 lbs. (5.5 kg) 19.8 lbs. (9 kg)
One Year Warranty
Accessories
SUPPLIED: Instruction Manual
OPTIONAL: TL-30 Hook-up leads

Model 1790       *     Model 1791 

High Current DC Power Supply 

Models 1790/1791 are cost effective, high power, regulated DC power supplies with 640 Watt output. They are linear high current DC power supplies suitable for bench operation or standard 19" rack operation. 

Special features include the ability to set constant current with no load and remote sense to compensate for any wire loss. The 1790 and 1791 are designed to meet CE specifications and have superior performance to comparable models costing 20 to 30% more. 

  • Constant Voltage/Constant Current Operation 
  • Remote Programming Facility 
  • Facility for Presetting the Output Voltage and Max. 
  • Load Current Limits 
  • Separate DC Output ON/OFF Switch 
  • Remote Sensing Facility 
  • High Stability and Close Regulation ±0.01% 
  • Meet CE Specifications 

Buy It Now !  Ordering Info
 
 

Ideal for telecom application 

Since noise elimination is critical for telecom application, the 1790 & 1791 DC power supplies offer low noise output, so that power supply noise does not interfere with testing of telecom devices.  The 1790 & 1791 are ideal for manufacturers who build equipment for telecom industry that operates from 48V or higher DC rail such as: base stations, switches, public and private telecom network equipment, PBX system and DC to DC power supplies that provide power to this equipment. 
Specifications models
  1790 1791
Output (DC) 0-32V 0-64V
Output Current (DC) 0-20A 0-10A
Constant Voltage Mode    
Line Regulation (120V+-10%) +-0.01%+-2mV
Load Regulation +-0.01%+-2mV
Ripple & Noise <=1mV rms max
Constant Current Mode  
Line Regulation (120V+-10%) +-0.05%+-10mA
Load Regulation +-0.05%+-10mA
Ripple & Noise 6mA rms Max
Overload Protection Constant current type
Stability +-0.2%+-10mV in CV mode
+-0.5%+-10mA in CC mode
Operating Temperature 32 0 to 104 0F (0 0 to 40 0C)
Power Requirement 120/230V, 60Hz+-10%
Dimension (WxHxD) 19x5.25x15.75'' (483x133x400 mm)
Weight 62 lbs. (28.1 kg)
Two Year Warranty
Accessories
SUPPLIED: User Manual
OPTIONAL: TL-30 Hook up leads

About...  |  Table of Contents  | Manufacturer Index  | What's New

Send Inquiries to:

Copyright © 2006 Davis Inotek Instruments, LLC. All rights reserved.