Data Sheet
Single Output DC Power Supplies
Models 1740B, 1743B, 1744A, 1745A & 1746B
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.
Model 1744A
Model 1745A
Specifications
Output Voltage
Output Current
1740B
0-60 V
0-4 A
1743B
0-35 V
0-6 A
1746B
0-16 V
0-10 A
1744A
0-35 V
0-10 A
1745A
0-35 V
0-10 A
Features & Benefits
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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
Constant Voltage Operation
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Voltage Regulation
Recovery Time
Ripple & Noise
Temperature Coefficient
Constant Current Operation
Line (120 VAC ±10%) <0.2% + 2 mV
Load (no load - full load) <0.04% + 2 mV
<100 µs
1 mV rms (Typical)
<300 ppm/°C
5% to 100%
Line (120 VAC ±10%) <0.4% + 5 mA
Load <0.4% + 5 mA
<3 mArms
2-Analog
0-64 V
±2.5%
0-4.4 A
0-1.1 A
±2.5%
Dual 4-digit LED
0-99.99 V (green)
± (0.5% + 9 digits)
0-9.999 A (red)
-
± (0.5% + 9 digits)
2-Analog
0-16 V
±2.5%
0-11 A
0-2.2 A
±2.5%
2-Analog
0-40 V
±2.5%
0-11 A
0-2.2 A
±2.5%
Dual 4-digit LED
0-99.99 V
±(0.7% + 9 digits)
0-9.999 A
-
±(0.7% + 9 digits)
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Adjustable Current Limit
Current Regulation
Current Ripple
Metering
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Type
Voltmeter Range
Voltmeter Accuracy
Ammeter Range
High Range
Low Range
Ammeter Accuracy
General
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Overload Protection
AC Input
Power Consumption
Operating Temperature
Storage Temperature
Dimensions (H x W x D)
Weight
Included Accessories
450 W
Current limiting, reverse polarity, overvoltage, short circuit
120/220 VAC ±10%, 50/60 Hz
420 W
380 W
560 W
560 W
32 to 104 °F (0 to 40 ˚C), <75% R.H.
5 to 158 °F (-15 to +70 °C), <85% R.H.
5.7” x 10.5” x 15” (145 x 267 x 381 mm)
23 lbs (10.4 kg)
20 lbs (9.1)
27 lbs (12.2)
Two-Year Warranty
Instruction manual , spare fuse and power cord
Technical data subject to change
© B&K Precision Corp. 2014
v080414
www.bkprecision.com
stm32/stm8
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