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BK Precision MDL4U400 80V/60A/400W Single-channel DC Electronic Load Module

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SKU

MDL4U400

Manufacturer:

B&K Precision

Key Features:

Module offer wide voltage and current range, 0 to 80 V, 0 to 60 A
Single-Channel
Transient mode up to 25 kHz
Synchronous Load on/off function
Adjustable slew rate in CC mode
Short circuit test simulates a short at the input
Built-in 16-bit resolution voltage and current measurement (0.1 mV, 0.01 mA)
Remote voltage sensing to compensate for the effect of voltage drop in wires
Operate identical modules in parallel mode for high current applications
OVP/OCP/OPP/OTP and reverse voltage protection

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$1,965.00

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Product Detail

The BK Precision MDL4U400 is a single-channel DC load module that works with the MDL4U001 Mainframe and MDL4U002 Mainframe Extension. The MDL4U400 input voltage is 80 V, input current is 60 A, and input power is 400 W.

Short Description

Model		MDL4U200	MDL4U252	MDL4U302	MDL4U305	MDL4U400	MDL4U505	MDL4U600
Input rating
Input Voltage		0 to 80 V	0 to 80 V	0 to 80 V	0 to 500 V	0 to 80 V	0 to 500 V	0 to 80 V
Input Current	Low	0 to 4 A	0 to 3 A	0 to 4.5 A	0 to 3 A	0 to 6 A	0 to 3 A	0 to 12 A
Input Current	High	0 to 40 A	0 to 20 A	0 to 45 A	0 to 20 A	0 to 60 A	0 to 30 A	0 to 120 A
Input Power		200 W	250 W / 50 W ⁽¹⁾	300 W / 300 W ⁽¹⁾	300 W	400 W	500 W	600 W
Channels		1	2	2	1	1	1	1
Minimum Operating Voltage	Low	0.10 V at 4 A	0.15 V at 3 A	0.14 V at 4.5 A	0.7 V at 3 A	0.15 V at 6 A	0.54 V at 3 A	0.18 V at 12 A
Minimum Operating Voltage	High	1 V at 40 A	1 V at 20 A	1.4 V at 45 A	4.5 V at 20 A	1.5 V at 60 A	5.4 V at 30 A	1.8 V at 120 A
CV mode
Range	Low	0 to 18 V
Range	High	0 to 80 V			0 to 500 V	0 to 80 V	0 to 500 V	0 to 80 V
Resolution	Low	1 mV
Resolution	High	10 mV
Accuracy	Low	± (0.05% + 0.02% F.S.)		± (0.05 % + 0.025% F.S.)	± (0.05% + 0.02% F.S.)
Accuracy	High	± (0.05% + 0.025% F.S.)
CC mode
Range	Low	0 to 4 A	0 to 3 A	0 to 4.5 A	0 to 3 A	0 to 6 A	0 to 3 A	0 to 12 A
Range	High	0 to 40 A	0 to 20 A	0 to 45 A	0 to 20 A	0 to 60 A	0 to 30 A	0 to 120 A
Resolution	Low	0.1 mA					1 mA	0.1 mA
Resolution	High	1 mA					10 mA	1 mA
Accuracy	Low	± (0.05% + 0.05% F.S.)						± (0.05% + 0.1% F.S.)
Accuracy	High	± (0.05% + 0.05% F.S.)						± (0.1% + 0.1% F.S.)
CR mode
Range	Low	0.05 Ω to 10 Ω			0.25 Ω to 10 Ω	0.05 Ω to 10 Ω	0.2 Ω to 10 Ω
Range	High	10 Ω to 7.5 kΩ
Resolution		16-bit
Accuracy	Low	0.01% + 0.08 S
Accuracy	High	0.01% + 0.0008 S
CW mode
Range		200 W	250 W	300 W		400 W	500 W	600 W
Resolution		10 mW
Accuracy		± (0.2% + 0.2% F.S.)
Transient mode (CC mode)
T1&T2⁽²⁾		20 μs to 3600 s / Res: 5 μs to 10 ms
Accuracy		5 μs + 100 ppm
Slew Rate⁽³⁾	Low	0.0001 to 0.25 A/μs	0.0001 to 0.2 A/μs	0.0001 to 0.25 A/μs	0.0001 to 0.1 A/μs	0.0001 to 0.25 A/μs	0.0001 to 0.1 A/μs	0.0001 to 0.25 A /μs
Slew Rate⁽³⁾	High	0.001 to 2.5 A/μs	0.001 to 2 A/μs	0.001 to 2.5 A/μs	0.001 to 1 A/μs	0.001 to 2.5 A/μs	0.001 to 1 A/μs	0.001 to 2.5 A/μs

(1) MDL4U252: The user can allocate 250 W to either channel up to 300 W total (e.g. 50 W/250 W, 250 W/50 W, 150 W/150 W). MDL4U302: The user can allocate 300 W to either channel up to 600 W total (e.g. 300 W/300 W).
(2) Fast pulse trains with large transitions may not be achievable.
(3) The slew rate specifications are not warranted, but are descriptions of typical performance. The actual transition time is defined as the time for the input to change from 10% to 90%, or vice versa, of the programmed current values. In case of very large load changes, e.g. from no load to full load, the actual transition time will be larger than the expected time. The load will automatically adjust the slew rate to fit within the range (high or low) that is closest to the programmed value.

Model		MDL4U200	MDL4U252	MDL4U302	MDL4U305	MDL4U400	MDL4U505	MDL4U600
Readback voltage
Range	Low	0 to 18 V
	High	0 to 80 V			0 to 500 V	0 to 80 V	0 to 500 V	0 to 80 V
Resolution	Low	0.1 mV			1 mV	0.1 mV	1 mV	0.1 mV
	High	1 mV			10 mV	1 mV	10 mV	1 mV
Accuracy		± (0.025% + 0.025% F.S.)
Readback current
Range	Low	0 to 4 A	0 to 3 A	0 to 4.5 A	0 to 3 A	0 to 6 A	0 to 3 A	0 to 12 A
	High	0 to 40 A	0 to 20 A	0 to 45 A	0 to 20 A	0 to 60 A	0 to 30 A	0 to 120 A
Resolution	Low	0.01 mA				0.1 mA	0.01 mA	0.1 mA
	High	0.1 mA				1 mA	0.1 mA	1 mA
Accuracy	Low	± (0.05% + 0.05% F.S.)						± (0.05% + 0.1% F.S.)
	High	± (0.05% + 0.05% F.S.)						± (0.1% + 0.1% F.S.)
Readback power
Range		200 W	250 W	300 W		400 W	500 W	600 W
Resolution		10 mW
Accuracy		± (0.2% + 0.2% F.S.)
Protection range (typical)
OPP		200 W	250 W	310 W	300 W	400 W	500 W	600 W
OCP	Low	4.4 A	3.3 A	5 A	3.3 A	6.6 A	3.3 A	13.2 A
	High	44 A	22 A	50 A	22 A	66 A	33 A	132 A
OVP		82 V			510 V	82 V	510 V	82 V
OTP		185 ºF (85 ºC)
General (typical)
Short Circuit
Current (CC)	Low	4 A	3 A	5 A	3 A	6 A	3 A	12 A
	High	40 A	30 A	50 A	20 A	60 A	30 A	120 A
Voltage (CV)		0 V
Resistance (CR)		25 mΩ	50 mΩ	30 mΩ	220 mΩ	25 mΩ	180 mΩ	15 mΩ
Input Terminal Impedance		300 kΩ			1 MΩ	300 kΩ	1 MΩ	300 kΩ
Safety		EN61010-1:2010, EU Low Voltage Directive (LVD) 2014/35/EU
Electromagnetic Compatibility		Meets EMC Directive 2014/30/EU, EN61326-1:2013
Warranty		3 Years
Dimensions		3.2” x 6.7” x 22.6” (82 x 170.5 x 573 mm)
Weight		11 lbs (5 kg)