4 Series Modular DC Loads

The 4 Series modular DC loads allow multi-channel DC load systems to be configured with ease.

Available load modules range from single channel and dual channel to application specific LED simulator modules. Mainframes in the 4 Series can accommodate 1, 2 or 4 modules with a maximum 1600W of DC load capability and up to 8 loads per mainframe. The newest 41T model loads support TURBO mode which allows short term overload testing up to 3x times the rated current or power of the load.

NEW: Quick Charger Test Option for 4 Series DC Loads. This optional fast charger test option supports testing of several fast charging protocols for mobile devices. See Models and Features tabs for details.

If you can’t find what you are looking for on these product pages, contact us by phone or email to discuss your application requirements with one of our power specialist.

DC Loads, Electronic Loads, Programmable Loads

OVERVIEW

The Adaptive Power 4 Series of Programmable DC Electronic Load Modules are ideally suited for testing multiple output AC/DC power supplies, DC/DC converters, battery chargers, LED lighting power supplies and other power products.

The high power density of the 4 Series allows up to 8 loads to be installed in a single 19″ wide rack-mount mainframe. For lesser demands, mainframes with two slots or a single slot are available as well.

The 4 Series consists of a total of 19 different modules types providing a wide variation of possible voltage, current, power and feature choices. Starting at 75 Watt and ranging to 400 Watt per module, all modules offer dual range capability for optimal accuracy and resolution. Voltage ranges start at 60Vdc and extend up to 500Vdc. The 41T DC Load modules offer twice the current and power for short periods of time using Turbo mode. Special LED simulation loads are available for lighting applications up to 500Vdc. (41D/42D Models)
Note: For voltage requirements up to 600Vdc on 4 Series loads, contact factory for special quote.

MODELS

Single Channel Modules

MODEL	DESCRIPTION	MAX POWER (W)	MAX VOLTAGE (V)	MAX CURRENT (A)
41L0630	Single Channel DC Load Module	150	60	30
41L0660	Single Channel DC Load Module	300	60	60
41L2512	Single Channel DC Load Module	300	250	12
41L5012	Single Channel DC Load Module	300	500	12
41L0615	Single Channel DC Load Module	75	60	15

MODEL	DESCRIPTION	NOM./TURBO PWR (W)	MAX VOLTAGE (V)	NOM./TURBO CURR (A)
41T0630	Single Channel Turbo DC Load Module	150 / 450	60	30 / 90
41T0660	Single Channel Turbo DC Load Module	300 / 900	60	60 / 180
41T2512	Single Channel Turbo DC Load Module	300 / 900	250	12 / 36
41T5012	Single Channel Turbo DC Load Module	300 / 600	500	12 / 24
41T0615	Single Channel Turbo DC Load Module	75 / 300	60	15 / 60
41T0880	Single Channel Turbo DC Load Module	400 / 800	80	80 / 160
41T5020	Single Channel Turbo DC Load Module	400 / 800	500	20 / 40

Dual Channel Modules

MODEL	DESCRIPTION	MAX POWER (W)	MAX VOLTAGE (V)	MAX CURRENT (A)
42L0860	Dual Channel DC Load Module	250/50	80/80	60/6
42L0824	Dual Channel DC Load Module	120/120	80/80	24/24
42L0803	Dual Channel DC Load Module	40/40	80/80	3/3

LED Simulator Modules

MODEL(1)	DESCRIPTION	MAX POWER (W)	MAX VOLTAGE (V)	MAX CURRENT (A)
41D3024	LED DC Load Module	300	300	24
41D5012	LED DC Load Module	300	500 (2)	12
41D5024	LED DC Load Module	300	500 (2)	24
41D1204	LED DC Load Module	10	120	4.0
42D5006	Dual LED DC Load Module	150/150	500/500 (2)	6.0/6.0
42D1202	Dual LED DC Load Module	75/75	120/120	2.0/2.0

Note (1): Older generation 41D3002, 41D1020, 41D5002 and 42D5003 LED loads have been replaced by the new and improved LED load models shown above.
Note (2): For voltage requirements up to 600Vdc on 4 Series loads, contact factory for special quote.

Mainframes

MODEL	DESCRIPTION	WIDTH (MM/INCH)	HEIGHT (MM/INCH)	DEPTH (MM/INCH)
44M01	DC Load Mainframe, 1 Module	160/6.3	177/7.0	452/17.8
44M01T	DC Load Mainframe, 1 Module w/Turbo	160/6.3	177/7.0	452/17.8
44M02	DC Load Mainframe, 2 Modules	269/10.6	177/7.0	452/17.8
44M02T	DC Load Mainframe, 2 Modules w/Turbo	269/10.6	177/7.0	452/17.8
44M04	DC Load Mainframe, 4 Modules	440/17.3	177/7.0	452/17.8
44M04T	DC Load Mainframe, 4 Modules w/Turbo	440/17.3	177/7.0	452/17.8

Options:

Quick Charger Tester (Opt QCT): This plug-in module works with single channel 41L Series modular DC loads and provides support for testing mobile device chargers that conform to the following charging protocols:

MediaTek PumpExpress
MediaTek PumpExpresss+
MediaTek PumpExpress+ 2.0
Qualcomm Quick Charge 2.0
Qualcomm Quick Charge 3.0
USB PD2.0

Current Waveform Generator (Opt CWG): This plug in module is available for 44M DC Load mainframes and provides arbitrary current waveform programming for up to four DC load modules.

KEY FEATURES

Max. Power 300W or 400W (41T) per Module
Extended Voltage Range, 0 – 500 Vdc
Max. Current Range 80 Adc
Single Load, Dual Load and LED Load Modules Available
Turbo DC Loads support 3x times rated power & current for overload testing
Up to 8 Load Inputs per Mainframe
Parallel Modules to 1600W
Synchronized Operation of Multiple Loads
Special LED Load Models available for lighting applications

Operating Modes: CC, CP, CR, CV, CC+CV, CP+CV and LED
Built-in Short Circuit Test
Over Current Protection Test Mode
Over Power Protection Test Mode
Static and Dynamic CC Modes
Available Interface Options are USB, RS232, GPIB and LAN
Available Options: Quick Charger Tester (Opt QCT), Current Waveform Generator (Opt CWG)
CE Mark

APPLICATIONS

Load Versatility

All APS 4 Series Modular Loads are equipped with a powerful microcontroller and user friendly controls to provide capabilities that cover a wide range of load applications. Built in metering of Voltage, Current, Power and Resistance.

Power Supply Testing

With a range of up to 8 load channels, the 42L load modules support testing for multiple output power supplies and AC/DC converters. The ability to load all outputs simultaneously of to test up to eight single output DC supplies at once provides significant test throughput in high voltage production environments.

Power Supply Design

With built-in features like over current protection (OPC) test and over power protection (OPP) test and dynamic constant current waveform testing, new power supply designs can be thoroughly evaluated against design specifications. An analog input mode allows arbitrary current waveforms to be applied to a unit under test as well.

Battery Charge/Discharge Testing

Time sequencing of specific discharge current levels as a function of battery voltage allows characterization and performance testing of various battery chemistries. The high current resolution and accuracy of the 4 Series load modules supports testing of very small batteries for portable device applications. The latest 41T Series DC loads offer built-in battery discharge profiles and Lithium battery BMS test mode.

LED Lighting

The 41D and 42D load modules are specially designed to support LED lighting applications by allowing accuracy simulation of LED load characteristic to be simulated. These modules simulate an LED V-I curve based on Vd and Rd input settings. For dimming LED supply development and test, the 41D and 42D modules include a PWM dimming output signal with programmable duty cycle and frequency. Recently updated with higher current support levels, multiple voltage ranges for higher accuracy and resolution, the 41D/42D LED loads offer the best price performance for lighting applications available.

Current Protection Device Testing

Testing of current protection devices like fuses, circuit breakers or PTC’s is automated using special test modes that increment current levels while tracking time to open on 41T model DC load modules..

Solar Panel Testing

Testing solar panels or cells is supported using built-in Maximum Power Point Tracking (MPPT) mode on 41T model DC load modules.

SPECS

Single Channel Modules

Model	41L0630		41L0660		41L2512		41L5012		41L0615
OPERATING RANGES
Power Ranges	0 – 15 W	0 – 150 W	0 – 30 W	0 – 300 W	0 – 30 W	0 – 300 W	0 – 30 W	0 – 300 W	0 – 7.5 W	0 – 75 W
Current Ranges	0 – 3 A	0 – 30 A	0 – 6 A	0 – 60 A	0 – 1.2 A	0 – 12 A	0 – 1.2 A	0 – 12 A	0 – 1.5 A	0 – 15 A
Voltage Range	60 V		60 V		250 V		500 V		60 V
Minimum Voltage	0.6V @ 30A		0.6V @ 60A		1.0V @ 12A		6.0V @ 12A		0.3V @ 15A
OPERATING MODES	Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP)
PROTECTION	Over Power (OP), Over Current (OC), Over Voltage (OV), Over Temperature (OT)
DYNAMIC OPERATION
T high & T low	50 μsec TO 9.999s (20 kHz)
Slew Rate	2.0 – 125 mA / μsec	20 – 1250 mA / μsec	4 – 250 mA / μsec	40 – 2500 mA / μsec	8 – 50 mA / μsec	8 – 500 mA / μsec	0.8 – 50 mA / μsec	8.0 – 500 mA / μsec	1.0 – 62.5 mA / μsec	10.0 – 625 mA / μsec
METERING
Voltage Read – back Ranges	0 – 6.0 V	0 – 60.0 V	0 – 60.0 V	0 – 60.0 V	0 – 30.0 V	0 – 250 V	0 – 60.0 V	0 – 500 V	0 – 6.0 V	0 – 6.0 V
Current Read – back Ranges	0 – 3.0 A	0 – 30.0 A	0 – 6.0 A	0 – 60.0 A	0 – 1.2 A	0 – 12.0 A	0 – 1.2 A	0 – 12.0 A	0 – 1.5 A	0 – 15.0 A
SHORT CIRCUIT
Programmable Short	BUILT – IN
Max. Short Current	30 A		60 A		12 A		12 A		15 A

Single Channel Modules with TURBO Mode

Model	41T0630		41T0660		41T2512		41T5012		41T0615
OPERATING RANGES
Power Ranges	0 – 15 W	0 – 150 W	0 – 30 W	0 – 300 W	0 – 30 W	0 – 300 W	0 – 30 W	0 – 300 W	0 – 7.5 W	0 – 75 W
Current Ranges	0 – 3 A	0 – 30 A	0 – 6 A	0 – 60 A	0 – 1.2 A	0 – 12 A	0 – 1.2 A	0 – 12 A	0 – 1.5 A	0 – 15 A
Turbo Mode	0 – 90 A	0 – 450 W	0 – 180 A	0 – 900 W	0 – 36 A	0 – 900 W	0 – 36 A	0 – 900 W	0 – 45 A	0 – 300 W
Voltage Range	60 V		60 V		250 V		500 V		60 V
Minimum Voltage	0.6V @ 30A		0.6V @ 60A		1.0V @ 12A		6.0V @ 12A		0.3V @ 15A
OPERATING MODES	Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP), CC+CP, CP+CV, Battery Management System Test (BMS), Fuse Test, MPPT Mode
PROTECTION	Over Power (OP), Over Current (OC), Over Voltage (OV), Over Temperature (OT)
DYNAMIC OPERATION
T high & T low	50 μsec TO 9.999s (20 kHz)
Slew Rate	2.0 – 125 mA / μsec	20 – 1250 mA / μsec	4 – 250 mA / μsec	40 – 2500 mA / μsec	8 – 50 mA / μsec	8 – 500 mA / μsec	0.8 – 50 mA / μsec	8.0 – 500 mA / μsec	1.0 – 62.5 mA / μsec	10.0 – 625 mA / μsec
METERING
Voltage Read – back Ranges	0 – 6.0 V	0 – 60.0 V	0 – 60.0 V	0 – 60.0 V	0 – 30.0 V	0 – 250 V	0 – 60.0 V	0 – 500 V	0 – 6.0 V	0 – 6.0 V
Current Read – back Ranges	0 – 3.0 A	0 – 30.0 A	0 – 6.0 A	0 – 60.0 A	0 – 1.2 A	0 – 12.0 A	0 – 1.2 A	0 – 12.0 A	0 – 1.5 A	0 – 15.0 A
SHORT CIRCUIT
Programmable Short	BUILT – IN
Max. Short Current	90 A		180 A		36 A		24 A		60 A

Single Channel Modules with TURBO Mode

Model	41T0880		41T5020
OPERATING RANGES
Power Ranges	0 – 40 W	0 – 400 W	0 – 40 W	0 – 400 W
Current Ranges	0 – 8 A	0 – 80 A	0 – 2 A	0 – 20 A
Turbo Mode	0 – 160 A	0 – 800 W	0 – 40 A	0 – 800 W
Voltage Range	80 V		500 V
Load ON Voltage	0.1V-25V		0.4V-100V
OPERATING MODES	Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP), CC+CP, CP+CV, Battery Management System Test (BMS), Fuse Test, MPPT Mode
PROTECTION	Over Power (OP), Over Current (OC), Over Voltage (OV), Over Temperature (OT)
DYNAMIC OPERATION
T high & T low	0.010~9.999/99.99/9.999s (20 kHz)
Slew Rate	5.4-337.5 mA / μsec	54-3375 mA / μsec	1.28-80 mA / μsec	12.8-800 mA / μsec
METERING
Voltage Read – back Ranges	0 – 8.04 V	0 – 80.4 V	0 – 60.0 V	0 – 500.0 V
Current Read – back Ranges	0 – 8.4 A	0 – 80.4 A	0 – 2.04 A	0 – 20.4 A
SHORT CIRCUIT
Programmable Short	BUILT – IN
Max. Short Current	80 A		20 A

Dual Channel Modules

Model	42L0860		42L0824		40L0803
OPERATING RANGES
Power Ranges	0 – 25W / 0 – 250W	0 – 5W / 0 – 50W	0 – 12W / 0 – 120W	0 – 12W / 0 – 120 W	0 – 4 W / 0 – 40 W	0 – 4 W / 0 – 40 W
Current Ranges	0 – 3 A	0 – 30 A	0 – 6 A	0 – 60 A	0 – 1.2 A	0 – 12 A
Voltage Range	0 – 80 V	0 – 80 V	0 – 80 V	0 – 80 V	0 – 80 V	0 – 80 V
Minimum Voltage	0.8 V @ 60 A	0.8 V @ 6 A	0.8 V @ 24 A	0.8 V @ 24 A	0.3 V @ 3 A	0.3 V @ 3 A
OPERATING MODES	Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP)
PROTECTION	Over Power (OP), Over Current (OC), Over Voltage (OV), Over Temperature (OT)
DYNAMIC OPERATION
T high & T low	0.050 – 9.999 / 99.99 / 999.9 / 9999ms (20 kHz)
Slew Rate	4mA – 250mA/μs	0.4mA – 25mA/μs	1.6mA – 100mA/μs		0.2mA – 12.5mA/μs
Slew Rate	40mA – 2500mA/μs	4mA – 250mA/μs	16mA – 1000mA/μs		2mA – 125mA/μs
METERING
Voltage Read – back Ranges	0 – 6 V / 0 – 81 V
Current Read – back Ranges	0 – 6.0A / 0 – 60.0A	0 – 0.6A / 0 – 6.0A	0 – 2.4 A / 0 – 24.0 A		0 – 0.3 A / 0 – 3.0 A
Power Read – back Ranges	0 – 250.0 W	0 – 50.0 W	0 – 120.0 W		0 – 40.0 W
MAX. SHORT CURRENT	60 A	6 A	24 A		3 A

LED Modules – Single Channel

Model	41D3024		41D5012		41D5024		41D1204
OPERATING RANGES
Power Ranges	0 – 300 W		0 – 300 W		0 – 300 W		0 – 150 W
Current Ranges	0 – 6 A	0 – 24 A	0 – 6 A	0 – 12 A	0 – 6 A	0 – 24 A	0 – 1.2A	0 – 4A
Voltage Range (1)	0 – 300 V		0 – 500 V		0 – 500 V		0 – 120 V
Minimum Voltage	3 V @ 24 A		6 V @ 12 A		6 V @ 24 A		3 V @ 4 A
OPERATING MODES	LED, Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP)
PROTECTION	Over Power (OP), Over Current (OC), Over Voltage (OV), Over Temperature (OT)
DYNAMIC OPERATION
T high & T low	0.050 / 9.999 / 99.99 / 999.9 / 9999 ms (20 kHz)
Slew Rate	4.8 – 300 mA /μs	19.2 – 1200 mA /μs	2.4 – 150 mA /μs	9.6 – 600 mA /μs	4.8 – 300 mA /μs	19.2 – 1200 mA /μs	0.96 – 60 mA /μs	3.84 – 240 mA /μs
METERING
Voltage Read – back Ranges	0 – 30V/0 – 150V/0 – 300V		0 – 60V/0 – 300V/0 – 500V		0 – 60V/0 – 300V/0 – 500V		0 – 30V/0 -60V/0 – 120V
Current Read – back Ranges	0 – 6.0 A	0 – 24 A	0 – 3.0 A	0 – 12 A	0 – 6.0 A	0 – 24 A	0 – 1.2 A	0 – 4 A
Power Read – back Ranges	0 – 300.0 W		0 – 300.0 W		0 – 300.0 W		0 – 300.0 W
DIMMING CONTROL	Range: 0 – 12 V / Freq Range: DC – 1KHz / Duty Cycle: 1% – 99%
SHORT SIGNAL OUTPUT	12 V / 100 mA max

Note (1): For voltage requirements up to 600Vdc on 4 Series loads, contact factory for special quote.

LED Modules – Dual Channel

Model	42D5006		42D1202
OPERATING RANGES
Power Ranges	0 – 150 W / 0 – 150W		0 – 75 W / 0 – 75 W
Current Ranges	0 – 1.5A/0 – 6A	0 – 1.5A/0 – 6A	0 – 1.5 A	0 – 6 A
Voltage Range (1)	0 – 500V / 0 – 500V		0 – 120V / 0 – 120V
Minimum Voltage	4 V @ 6 A		3 V @ 2 A
OPERATING MODES	LED, Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), Constant Power (CP), LED
PROTECTION	Over Power (OP), Over Current (OC), Over Voltage (OV), Over Temperature (OT)
DYNAMIC OPERATION
T high & T low	(N/A)
Slew Rate	(N/A)
METERING
Voltage Read – back Ranges	0-60V / 0-300V/ 0-500V		0-30V / 0-60V/ 0-120V
Current Read – back Ranges	0 – 1.5A/0 – 6A	0 – 1.5A/0 – 6A	0 – 3.0 A	0 – 12 A
Power Read – back Ranges	0 – 150.0 W		0 – 75.0 W
DIMMING CONTROL	Range: 0 – 12 V / Freq Range: DC – 1KHz / Duty Cycle: 1% – 99%
SHORT SIGNAL OUTPUT	12 V / 100 mA max

Note (1): For voltage requirements up to 600Vdc on 4 Series loads, contact factory for special quote.

Mainframes

Mainframe	44M01	44M02	44M04
No. of Slots	1	2	4
Supports	41L0630, 41L0660, 41L2512, 41:5012, 41L0616 42L0860, 42L0824, 42L0803 41D3024, 41D5012, 41D5024, 42D5006
Max Po Wer	300 W	600 W	1200 W
AC Input	100-115Vac ±10% or 200-230Vac ±10%
Frequency	50 / 60 Hz ±3Hz
Po Wer (max.)	40 W	60 W	150 W
Dimensions (Hx WxD)	177 x 160 x 452mm 7.0 x 6.3 x 17.8″	177 x 269 x 452mm 7.0 x 10.6 x 17.8″	177 x 440 x 445mm 7.0 x 17.3 x 17.5″
Weight	5.5 kg / 12.2 lbs	7.5 kg / 16.5 lbs	9.3 kg / 20.5 lbs