1745A - B&K PRECISION CORPORATION

Single Output DC Power Supplies

Models 1740B, 1743B, 1744A, 1745A & 1746B

Data Sheet

www.bkprecision.com

Technical data subject to change

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