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
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
B&K Precision:
1740B 1743B 1744A