B+K Precision 8550 Series Programmable DC Electronic Loads
Benefits of the BK8550 and BK8551 Electronic Loads up to 350 W
- 1-channel programmable DC electronic loads.
- Up to 175 W or 350 W.
- Rated voltage/current 150 V/30 A or 150 V/60 A.
B+K Precision 8550 Series Programmable DC Electronic Loads
The BK8550 series of electronic DC loads offer power up to 350 W in a compact benchtop form factor. The devices are ideal for testing and evaluating power supplies, DC-DC converters, batteries, battery chargers, and photovoltaic systems. Static modes of operation include constant current (CC), constant voltage (CV), constant resistance (CR), and constant power (CW). Configurable list, transient, and automatic test modes provide dynamically varying load conditions for evaluating a variety of DC sources. In addition, the dedicated battery discharge mode simplifies battery testing with configurable stop conditions. Measurement data and other parameters can be stored directly to a flash drive.
- 1 channel programmable DC electronic loads.
- High power density, up to 350 W in compact 2U half-rack form factor.
- Transient mode up to 20 kHz in CC mode.
- CC/CV/CR/CW operating modes.
- Front-panel remote sense terminals.
- List mode programming.
- Automatic test mode.
- Overvoltage (OVP), overcurrent (OCP), overpower (OPP) protection, remote reverse voltage (RRV), and key-lock function.
- Thermostatically-controlled fans for quiet operation.
- Short-circuit test, sweep test, load regulation test, protection limit test.
- CR-LED mode to simulate the loading behavior of typical LEDs.
- Configurable battery discharge test.
- Adjustable voltage/current slew rate.
- Front panel USB host port for logging measurement data.
- Save/recall instrument settings to internal memory.
- Analog current monitoring BNC output.
- Operating software and battery test software provided.
- 4.3"/10.9 cm LCD screen.
- RS232 interface.
- General purpose handler interface offers pass/fail feedback and simplifies integration with PLC devices.
Model Overview
| Model | BK8550 | BK8551 |
| Input power | 175 W | 350 W |
| Input voltage | 0...150 V | 0...150 V |
| Input current | Low 0...3 A High 0...30 A | Low 0...6 A High 0...60 A |
| Min. operating voltage | Low 0.15 V at 3 A High 1.5 V at 30 A | Low 0.15 V at 6 A High 1.5 V at 60 A |
| Operating modes | CV (constant voltage), CC (constant current), CR (constant resistance), CW (constant power/Watt) | |
| Protection | OVP (over voltage protection, OCP (over current protection), OPP (over power protection), RRV (remote reverse voltage | |
| Display | 4.3"/10.9 cm LCD | |
| Interfaces | USB host (front panel), RS232, handler interface | |
| Dimension (mm) | 213 x 88 x 390 | |
| 3 kg | 4.8 kg | |
Included: Electronic DC load BK 8550 or 8551, power cord, certificate of calibration.
Optional accessories, not included: TLPWRI high current test leads.
