Programmable Electronic Multi-Channel DC Load | IT8700P Series

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Product number: IH-IT8700P-Serie

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ITECH IT7800P Series - Product cataloque

Product Information "Programmable Electronic Multi-Channel DC Load | IT8700P Series"

ITECH IT8700P Series
Modular, Multi-Channel Electronic DC Load
For Synchronous Loading of Multiple DC Outputs and Power Supplies

Programmable Multichannel DC Load for Parallel Load Tests, Dynamic Load Changes, and Reproducible Test Sequences in Development, Automated Test Systems (ATE), and Production.

Application Logic
Use the IT8700P Series when multiple DC outputs or power paths must be tested simultaneously and defined load profiles, load steps, and time-coordinated sequences are required. The electronic DC load operates as a sink and applies controlled loading to the device under test to evaluate regulation behavior, stability, and protection circuits under realistic load conditions.

Typical Test Scenarios
Multi-output power supply testing: load multiple outputs in parallel and execute time-synchronized load transitions
DC-DC converter testing: verify regulation behavior and stability under dynamic load changes
Battery discharge testing: run reproducible discharge profiles and monitor cut-off conditions
Production and end-of-line testing: execute repeatable multi-channel load sequences in automated workflows

Classification and Application Scope
The ITECH IT8700P Series is a programmable, multi-channel electronic DC load (multichannel DC load) for targeted loading of DC sources, power supplies, batteries in discharge mode, and DC-DC converters. It operates exclusively as an electronic sink and supports test scenarios in which multiple DC outputs or power paths are loaded simultaneously or in a coordinated manner.

Modular Multi-Channel Concept
In test setups with multiple supply outputs or power stages, single-channel electronic DC loads are often insufficient. The IT8700P Series enables parallel operation of multiple load channels within a mainframe and supports synchronized operation of multiple modules.
The modular architecture allows the number of channels and output power to be adapted to the device under test. Depending on the module configuration, multiple load points can be tested within a single system and test sequences can be executed consistently.

Load Modes and Dynamic Load Profiles
For realistic simulation of electrical loads, the IT8700P Series supports constant current (CC), constant voltage (CV), constant power (CW), and constant resistance (CR) modes, as well as combined operating modes.
Using the LIST function, time-based load profiles, defined load steps, and dynamic load changes can be executed automatically. This is particularly relevant for evaluating the regulation behavior and stability of DC sources under varying load conditions.

Measurement and Protection Functions
The IT8700P Series measures current and voltage with sampling rates of up to 50 kHz, enabling precise measurements even during fast load changes and dynamic test profiles.
Integrated protection functions against overcurrent, overvoltage, overpower, and overtemperature protect both the device under test and the test system and ensure stable operation in development and production environments.

System Integration and Automation
SCPI-based remote control via standard interfaces allows seamless integration of the IT8700P Series into automated test systems, ATE environments, and multi-channel test benches. The modules can be controlled independently or synchronously and centrally parameterized.
This supports consistent test sequences, reduces system-related deviations between channels, and simplifies the implementation of repeatable test procedures.

What the IT8700P Series Is Not:

No DC voltage source or current source; electronic DC load only (sink)
Not suitable for AC load or mains testing
No regenerative load, no power feedback to the grid
No safety, hipot, or insulation tester

Configure the IT8700P Series to Your Requirements
We support you in selecting and configuring the IT8700P Series according to your devices under test, load profiles, and test procedures. The result is a modular DC load system that integrates cleanly into your test environment and delivers reproducible and traceable test results.

AC / DC:	DC
Bidirectional:	no
Interfaces:	GPIB, RS-232, USB
Output Channels:	2, 4, 8
Working Mode:	CC - Constant Current, CR - Constant Resistance, CV - Constant Voltage

Available documents (Subject to change)

ITECH IT7800P Series - Product cataloque

Specifications of the Multichannel, Programmable Electronic DC Load IT8700P Series

Number of Channels: 1–8 channels per single frame, expandable to 9–16 channels with extended frame
Form Factor (Mainframe): 4 U, 19-inch rack-mountable
Module Voltage Range (DC): 0–500 V (depending on module, see datasheet)
Module Current Range: 0–120 A (depending on module, see datasheet)
Module Power Range: 200–600 W (depending on module, see datasheet)
Dual-Channel Modules – Power Allocation: 0–300 W total, up to 250 W per channel (PCH1 + PCH2 ≤ 300 W) (depending on module, see datasheet)
Input Resistance (CR Mode): From a few milliohms up to the kilo-ohm range (depending on module and measurement range, see datasheet)
Dynamic Load Operation: Dynamic mode up to 25 kHz, LIST mode up to 100 kHz
Current Rise and Fall Slope: 0.0001–7.5 A/µs (depending on module and measurement range, see datasheet)
Minimum Current Rise Time (10–90%): Approx. 10–35 µs (depending on module, see datasheet)
Measurement Speed (Current / Voltage): Up to 50 kHz
Measurement Resolution: Up to 0.1 mV and 0.01 mA (depending on measurement range, see datasheet)
Measurement Accuracy (Readback): Voltage up to ±(0.025% + 0.025% FS), current up to ±(0.05% + 0.025% FS) (depending on range and module, see datasheet)
Time Measurement Function: 0.1 ms–100,000 s; additionally T1/T2: 20 µs–3600 s (depending on function, see datasheet)
System Architecture: Modular mainframe system with plug-in electronic load modules
Load Operating Modes: Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), Constant Power (CW), as well as combined modes (CV+CC, CR+CC, CW+CC, CV+CR (CR-LED))
Dynamic Power Allocation: Power allocation function for dual-channel modules
Short-Circuit Peak Measurement: Measurement of peak current and peak voltage (Vpk+ / Vpk−)
Automatic Test Functions: Limit monitoring for evaluation of test results
Protection Functions: OVP, OCP, OPP, OTP, and anti-reverse protection
I-Limit Function: Adjustable current limit in CV, CR, and CW operating modes
Interfaces (Mainframe): LAN, USB, RS232 as standard; GPIB optional (see datasheet)
Connection Concept: Front and rear load terminals for laboratory and rack wiring
Dimensions: Mainframe-dependent (see datasheet)
Weight: Depending on mainframe version and module configuration (see datasheet)

Note: All values given should be understood as aggregated ranges. Exact limits, resolutions, and accuracies depend on the module and measurement range. The official manufacturer’s IT8700P datasheet is authoritative.

Options and Accessories for the Multichannel, Programmable Electronic DC Load IT8700P Series

IT8703P chassis communication cable
AC mains power cable (accessory)
USB connection cable for USB port communication
IT-E32410-OO: Test cable 240 A / 100 cm, ring lug to ring lug, black/red
IT-E33620-OO: Test cable 360 A / 200 cm, ring lug to ring lug, black/red
IT-E31220-OO: Test cable 120 A / 200 cm, ring lug to ring lug, black/red
IT-E32420-OO: Test cable 240 A / 200 cm, ring lug to ring lug, black/red
IT-E30615-OO: Test cable 60 A / 150 cm, ring lug to ring lug, black/red
IT-E30312-YY: Test cable 30 A / 120 cm, Y-lug to Y-lug, black/red
IT-E9003: ITECH warranty up to 3 years
IT-E9005: ITECH warranty up to 5 years

Scope of Delivery of the Multichannel DC Load IT8700P Series

IT8700P Series unit(s)
Country-specific mains power cable
Calibration report
DB25 communication cable (IT8703P mainframe)

Application Areas of the Multichannel Electronic DC Loads of the IT8700P Series

Automated test systems (ATE) for development and production
Avionics applications in civil aviation
Testing and analysis of data transmission systems
Testing of communication and signal technology
Diode, semiconductor, and electronic component testing

ITECH is one of the world's largest manufacturers of AC and DC power supplies. The group's diversified product portfolio includes battery testing and power supply test systems. The company's focus is on a competitive price-performance ratio.