Low Power DC Load Benchtop, up to 700kW
Low Power DC Load Benchtop, up to 700kW
The 41S Series DC loads offer high power and current at an affordable price point. 41S Series models are available in power levels of 250W, 350W or 700W. Available input voltage ranges are 0~80Vdc or 0~500Vdc. All models offer a wide V-I constant power load profile allowing for high voltage and low current as well as low voltage and high current applications using the same DC load. The compact form factor of these DC Loads makes them convenient for bench use.
Why Choose 41S Series
Available at 250W, 350W, or 700W in a compact bench design
Dynamic capabilities for basic battery charge/discharge, inrush, fuse/tests
Budget bench testing, basic battery/supply testing
CC, CP, CR, CV modes with fast current slew rates, battery charge/discharge test, surge/inrush, current limit trip, and short/fuse/OPP test modes
Key Specifications
- Power levels 250W, 350W and 700W
- Voltage Ranges 0–80Vdc or 0–500Vdc
- Max. Current 140Adc
- Slim-line chassis for 250W or 350W and double-wide chassis for 700W models
- Operating Modes: CC, CP, CR, CV
- Built-in Short Circuit Test
- Power Supply Over Current & Over Power Protection Test Mode
- Static and Dynamic CC Modes
- Standard Interfaces: USB and RS232
- Available Options: Quick Charger Tester (Opt QCT)
- CE Mark
Economical Programmable DC Loads
APS 41S Series DC loads support low-voltage/high-current or high-voltage/low-current operation, with fast programmable slew rates for power supply evaluation, OCP/OPP and dynamic CC modes for design verification, programmable battery discharge profiles, and automated protection device testing.
- Versatile Loads – Microcontroller-based with built-in V, I, P metering.
- Power Supplies – Low-V/high-I or high-V/low-I models; fast programmable slew rates for loop/stability testing.
- Design Verification – OCP/OPP modes and dynamic CC waveform testing; analog input for custom waveforms.
- Battery Testing – Programmable discharge profiles with built-in test modes for small and large batteries.
- Protection Devices – Automated step-current tests for fuses, breakers, and PTCs.
The Quick Charger Tester (Opt QCT) is a single-channel controller for R&D testing and verification of modern fast chargers. It simulates fast charge protocols for mobile phones, tablets, and notebooks, enabling rapid charger evaluation.
Supported Charging Protocols are: QC2.0, QC3.0, PE+, PE+2.0, USB PD2.0
| Model | Description | Nom./Turbo Pwr (W) | Max Voltage (V) | Nom./Turbo Curr (A) | |
|---|---|---|---|---|---|
| 41S0850 | DC Load - Bench | 250 | 80 | 50 | |
| 41S0870 | DC Load - Bench | 350 | 80 | 70 | |
| 41S5015 | DC Load - Bench | 350 | 500 | 15 | |
| 41S08140 | DC Load - Bench | 700 | 80 | 140 | |
| 41S5030 | DC Load - Bench | 700 | 500 | 30 |
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
| Title | Document Type |
|---|---|
APS 41S Series DC Load Benchtop Datasheet
|
Datasheet |
41S Series Economy DC Load Manual
|
Manual |
|
APS DC Load Quick Charger Tester Option
|
Datasheet |
Why Choose 41S Series
Available at 250W, 350W, or 700W in a compact bench design
Dynamic capabilities for basic battery charge/discharge, inrush, fuse/tests
Budget bench testing, basic battery/supply testing
CC, CP, CR, CV modes with fast current slew rates, battery charge/discharge test, surge/inrush, current limit trip, and short/fuse/OPP test modes
Key Specifications
- Power levels 250W, 350W and 700W
- Voltage Ranges 0–80Vdc or 0–500Vdc
- Max. Current 140Adc
- Slim-line chassis for 250W or 350W and double-wide chassis for 700W models
- Operating Modes: CC, CP, CR, CV
- Built-in Short Circuit Test
- Power Supply Over Current & Over Power Protection Test Mode
- Static and Dynamic CC Modes
- Standard Interfaces: USB and RS232
- Available Options: Quick Charger Tester (Opt QCT)
- CE Mark
Economical Programmable DC Loads
APS 41S Series DC loads support low-voltage/high-current or high-voltage/low-current operation, with fast programmable slew rates for power supply evaluation, OCP/OPP and dynamic CC modes for design verification, programmable battery discharge profiles, and automated protection device testing.
- Versatile Loads – Microcontroller-based with built-in V, I, P metering.
- Power Supplies – Low-V/high-I or high-V/low-I models; fast programmable slew rates for loop/stability testing.
- Design Verification – OCP/OPP modes and dynamic CC waveform testing; analog input for custom waveforms.
- Battery Testing – Programmable discharge profiles with built-in test modes for small and large batteries.
- Protection Devices – Automated step-current tests for fuses, breakers, and PTCs.
The Quick Charger Tester (Opt QCT) is a single-channel controller for R&D testing and verification of modern fast chargers. It simulates fast charge protocols for mobile phones, tablets, and notebooks, enabling rapid charger evaluation.
Supported Charging Protocols are: QC2.0, QC3.0, PE+, PE+2.0, USB PD2.0
| Model | Description | Nom./Turbo Pwr (W) | Max Voltage (V) | Nom./Turbo Curr (A) | |
|---|---|---|---|---|---|
| 41S0850 | DC Load - Bench | 250 | 80 | 50 | |
| 41S0870 | DC Load - Bench | 350 | 80 | 70 | |
| 41S5015 | DC Load - Bench | 350 | 500 | 15 | |
| 41S08140 | DC Load - Bench | 700 | 80 | 140 | |
| 41S5030 | DC Load - Bench | 700 | 500 | 30 |
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
| Title | Document Type |
|---|---|
|
APS 41S Series DC Load Benchtop Datasheet
|
Datasheet |
|
41S Series Economy DC Load Manual
|
Manual |
|
APS DC Load Quick Charger Tester Option
|
Datasheet |