Single Output DC Power Supplies
Models 1740B, 1743B, 1744A, 1745A & 1746B
Data Sheet
www.bkprecision.com
Technical data subject to change
© B&K Precision Corp. 2014
v080414
These power supplies have all of the great
features you would expect B+K Precision power
supplies to have and some new features not
normally seen on power supplies in this price
range. The output-shorting button allows the
user to short the output terminals to set the
current limit.
Features & Benefits
■Largest selection of voltage and current
ratings ever offered
■Connect two supplies in parallel to double the
current output
■Connect two supplies in series to double
the voltage output
■Reliable, Durable
■Operate continuously at full load without
overheating
■Fully overload protected
■Coarse and fine voltage controls
■Excellent regulation
■Very low ripple
■Constant voltage or constant current
operation
■Continuously monitor voltage and current
output on two meters
Specifications 1740B 1743B 1746B 1744A 1745A
Output Voltage 0-60 V 0-35 V 0-16 V 0-35 V 0-35 V
Output Current 0-4 A 0-6 A 0-10 A 0-10 A 0-10 A
Constant Voltage Operation
Voltage Regulation Line (120 VAC ±10%) <0.2% + 2 mV
Load (no load - full load) <0.04% + 2 mV
Recovery Time <100 µs
Ripple & Noise 1 mV rms (Typical)
Temperature Coefficient <300 ppm/°C
Constant Current Operation
Adjustable Current Limit 5% to 100%
Current Regulation Line (120 VAC ±10%) <0.4% + 5 mA
Load <0.4% + 5 mA
Current Ripple <3 mArms
Metering
Type 2-Analog Dual 4-digit LED 2-Analog 2-Analog Dual 4-digit LED
Voltmeter Range 0-64 V 0-99.99 V (green) 0-16 V 0-40 V 0-99.99 V
Voltmeter Accuracy ±2.5% ± (0.5% + 9 digits) ±2.5% ±2.5% ±(0.7% + 9 digits)
Ammeter Range
High Range 0-4.4 A 0-9.999 A (red) 0-11 A 0-11 A 0-9.999 A
Low Range 0-1.1 A - 0-2.2 A 0-2.2 A -
Ammeter Accuracy ±2.5% ± (0.5% + 9 digits) ±2.5% ±2.5% ±(0.7% + 9 digits)
General
Overload Protection Current limiting, reverse polarity, overvoltage, short circuit
AC Input 120/220 VAC ±10%, 50/60 Hz
Power Consumption 450 W 420 W 380 W 560 W 560 W
Operating Temperature 32 to 104 °F (0 to 40 ˚C), <75% R.H.
Storage Temperature 5 to 158 °F (-15 to +70 °C), <85% R.H.
Dimensions (H x W x D) 5.7” x 10.5” x 15” (145 x 267 x 381 mm)
Weight 23 lbs (10.4 kg) 20 lbs (9.1) 27 lbs (12.2)
Two-Year Warranty
Included Accessories Instruction manual , spare fuse and power cord
Model 1744A Model 1745A
