What it is

A single-channel programmable DC electronic load in 150 V (PEL-3000A) and 800 V (PEL-3000AH) families, rated 175 W to 2,100 W, reaching 9,450 W with boosters.

Current resolution reaches 0.01 mA and the current slew rate 16 A/µs on the PEL-3000A. Seven operating modes, three operating functions, and automated BATT, OCP, and OPP tests are built in.

• PEL-3000A (150 V): PEL-3021A (175 W), PEL-3041A (350 W), PEL-3111A (1,050 W), PEL-3211A (2,100 W booster)
• PEL-3000AH (800 V): PEL-3021AH (175 W), PEL-3041AH (350 W), PEL-3111AH (1,050 W), PEL-3211AH (2,100 W booster)
• Seven operating modes: CC, CV, CR, CP, CC+CV, CR+CV, CP+CV
• Static, Dynamic, and Sequence functions; Sequence divided into Fast Sequence and Normal Sequence
• Parallel operation: up to 5 units of the same model, or one PEL-3111A/AH with up to four boosters for 9,450 W
• Current slew rate: up to 16 A/µs (PEL-3000A), 0.84 A/µs (PEL-3000AH)
• Soft Start, adjustable UVP, GO/NO GO voltage input monitoring, current monitoring, and timer function
• BATT, OCP, and OPP test automation
• Protection: OVP, OCP, OPP, OTP, UVP, RVP
• Interfaces: USB, RS-232/RS-485, LAN standard; GPIB optional

What it is used for

Some of the use cases for the PEL-3000A/AH Series include:

• Switching power supplies (SPS) — for commercial and industrial computers
• DC/DC converters and high-voltage batteries — with the PEL-3000AH
• Rechargeable batteries — for electrical tools, battery modules, and automobile batteries
• HEV current consumption simulation — to verify automobile batteries
• Battery bleeding characteristic tests, etc.

What does the PEL-3000A/AH Series do?

The PEL-3000A series, a single-channel programmable DC electronic load with 0.01 mA current resolution and 16 A/µs current slew rate, is ideal for testing SPS (switching power supplies) for commercial and industrial computers. For heavy-duty devices such as cloud ecosystems running 24-hour nonstop operations, a stable and high-power supply, ranging from 175 W to 1,050 W, is required to maintain the normal operation of servers, hubs, and data storage and internet communications equipment.

Owing to the increasing demand for data transmission and large-scale data storage in telecommunications systems, the infrastructure of internet communications is expanding rapidly. This has greatly boosted market demand for telecommunications equipment powered by power supplies of 2,000 W and above. The flexible power combination of the PEL-3000A meets the test requirements of present high-power power supplies.

The PEL-3000AH programmable DC electronic load inherits the functions and features of the PEL-3000A series, while providing three current ranges on all models and adding voltage monitor BNC terminals on the front panel. The PEL-3000AH series, a single-channel programmable DC electronic load with 800 V and 0.84 A/µs current slew rate, is ideal for testing high voltage devices such as EV and HEV in-vehicle chargers, DC/DC converters, and high-voltage batteries.

For battery testing applications, the series offers three stand-alone models (175 W, 350 W, and 1,050 W) and a booster. Connecting 2,100 W booster units to master units brings the maximum load capacity of the whole system to 9,450 W, so the series covers power testing requirements from low and medium power through to high-power supplies.

The series has seven operating modes and three operating functions. Four are basic operating modes (constant current, constant voltage, constant resistance, and constant power) and three are advanced modes (CC+CV, CR+CV, and CP+CV). Static, Dynamic, and Sequence functions apply a fixed load level, switch between two levels, or switch among more than two levels. Dynamic and Sequence help simulate genuine load changes; for example, the series can simulate HEV current consumption to confirm that an automobile battery can supply sufficient power on the road.

The Soft Start function sets the current rise time when the load is turned on, reducing abnormal voltage drop in the power supply under test. Adjustable UVP, GO/NO GO voltage input monitoring, current monitoring, and the timer function that controls load activation time can be combined for battery bleeding characteristic tests, avoiding battery damage during the bleeding operation.

Why engineers pick it

• Scales from 175 W to 9,450 W. Three stand-alone models cover low and medium power, and one PEL-3111A/AH with four boosters reaches 9,450 W on the same platform.
• Simulates real load behavior. Dynamic and Sequence functions switch between or among load levels, with T1 and T2 from 0.025 ms to 60 s, to reproduce profiles such as HEV current consumption.
• Protects the supply under test. Soft Start sets the current rise time at turn-on, which reduces abnormal voltage drop in the DUT.
• Battery testing without damage. Adjustable UVP, GO/NO GO monitoring, current monitoring, and the timer combine for bleeding characteristic tests that stop before the battery is harmed.

Which PEL-3000A/AH model do I need?

Choose the A family for DUTs up to 150 V and the AH family for up to 800 V. The AH models also provide three current ranges throughout and front-panel voltage monitor BNC terminals.

When is the PEL-3000A/AH the wrong choice?

• A booster on its own. The PEL-3211A and PEL-3211AH have no control panel and only operate in parallel with a PEL-3111A or PEL-3111AH.
• Full mode coverage on the boosters. CV, CP, slew rate, and metering specifications are not listed for the PEL-3211A; it runs CC, CR, and CP in dynamic mode as part of a master system.
• Low voltage on the AH family. Minimum operating voltage is 5 V at full current on the 800 V models, against 1.5 V on the 150 V models.
• Fast slew rate at 800 V. The AH family reaches 0.84 A/µs, against 16 A/µs on the PEL-3000A.

Ordering Information

Configure and order the PEL-3000A/AH

Choose the PEL-3000A or PEL-3000AH model, boosters, and accessories your tests need and order directly on this page. For questions, contact us.