EA-BT 20200-140 Triple 4U 3-Channel High-Voltage Regenerative Battery Tester

The EA-BT 20200-140 Triple 4U is a professional high voltage battery tester and 3 channel battery tester from the BT 20000 Triple series by Elektro-Automatik, designed as a 4U rack mount battery tester and triple output battery tester for industrial high-voltage battery testing applications. As a two quadrant battery tester and bidirectional battery tester, it integrates both battery charge tester and battery discharge tester functions, operating as a grid regenerative electronic load with regenerative energy recovery into the grid during discharge, delivering up to 95.1% sink/source efficiency to reduce energy costs and heat generation, making it an energy saving battery tester, low heat battery tester and cost saving battery tester. It also serves as a programmable dc power supply and programmable dc power source for flexible industrial power applications. This industrial battery test system features a wide 3-phase AC input range of 208 V ±10% and 380-480 V ±10%, supporting 45-65Hz frequency, with active power factor correction achieving a typical 0.99 power factor and <10mA leakage current, compatible with most global power grids. When operating on 208 V ±10% AC, it automatically derates to 18000 W total DC output power. It delivers 3 independent DC channels, each providing 0-200 V DC voltage, 0-140 A current and 0-10000 W power, with a total device power range of 0-30000 W. Each channel offers low output ripple with ≤40 mV rms (300 kHz bandwidth) and ≤300 mV pp (20 MHz bandwidth), paired with 1800 μF output capacitance per channel and a 1.8 V minimum sink voltage for full current output. The device employs 18-bit high-resolution digital regulation with selectable voltage controller speeds (normal, fast, slow), providing ≤0.05% FS voltage measurement accuracy and ≤0.1% FS current measurement accuracy, supporting CV, CC, CP, CR regulation modes with fast crossover for high accuracy battery testing. It delivers fast dynamic response with CV rise/fall time ≤10 ms and CC rise/fall time ≤2 ms, meeting the demands of fast response battery testing. It features 3750 Vrms insulation between AC input and DC terminals, ±1000 V DC negative pole to PE insulation, +1000 V DC positive pole to PE insulation and ±2000 V DC channel-to-channel isolation, with all communication interfaces galvanically isolated from the DC side for safe operation. Standard interfaces include USB, 1Gbit/s Ethernet, EtherCAT with 1 ms communication speed, CAN FD, and a front USB host for data logging and sequencing, plus 3 configurable digital inputs, 3 relay outputs and 3 temperature sensor inputs per channel. It supports flexible parallel operation: up to 2 units can be paralleled per channel via Share-Bus and Master-Auxiliary bus, or all 3 channels of a single device can be grouped externally to deliver up to 420 A total current. Integrated battery test functions include CC-CV discharge characteristics, battery ampere hour counter, dedicated battery test modes and comprehensive alarm management, making it suitable as a battery module tester, battery pack tester, battery SOH testing equipment and battery EOL testing equipment. It is widely applied in EV battery testing, automotive battery test equipment and battery recycling tester applications. The standard version uses temperature-controlled forced air cooling, with dimensions of 483 mm (W) x 177 mm (H) x 668 mm (D) and a weight of 50 kg; optional stainless steel water cooling is available, increasing the weight to 56 kg. It has an IP20 ingress protection rating, operates in 0-50 °C ambient temperature (rated power is permanently available up to approximately +40 °C), and includes comprehensive protective functions: adjustable OVP (0-110% nominal voltage), OCP (0-110% nominal current), OPP (0-110% nominal power) and overtemperature protection. It complies with EN 61010-1, IEC 61010-1, UL 61010-1 safety standards and EN 55011 Class A EMC requirements.

Key Features

• 3 Independent High-Voltage Channels: 4U rack mount design, 0-200V/140A/10kW per channel, 30kW total power (18kW derated at 208V), supports channel grouping for up to 420A total current.
• High-Efficiency Regenerative Recovery: 95.1% sink/source efficiency, feeds discharge energy back to the grid, significantly reducing energy costs and cooling requirements.
• Global Grid Compatibility: 3-phase 208V±10% / 380-480V±10% input, 45-65Hz frequency, typical 0.99 power factor and <10mA leakage current.
• Low-Ripple Precision Output: ≤40mV rms / ≤300mV pp CV ripple, 1800μF per-channel capacitance, 1.8V minimum sink voltage for full-current operation.
• 18-Bit High-Resolution Regulation: Selectable voltage control speeds, ≤0.05% FS voltage accuracy, ≤0.1% FS current accuracy, supports CV/CC/CP/CR modes with fast crossover.
• Fast Dynamic Response: CV rise/fall time ≤10ms, CC rise/fall time ≤2ms, adapts to rapid changes in battery testing conditions.
• High-Grade Electrical Isolation: 3750Vrms AC-to-DC insulation, ±1000V DC pole-to-PE insulation, ±2000V DC channel-to-channel isolation.
• Galvanically Isolated Interfaces: USB, 1G Ethernet, 1ms EtherCAT, CAN FD, plus per-channel digital I/O and temperature sensor inputs.
• Scalable Parallel Operation: Up to 2 units parallel per channel via Share-Bus/Master-Auxiliary bus for higher power test systems.
• Integrated Battery Test Suite: CC-CV discharge, ampere hour counter, alarm management, optimized for high-voltage module/pack validation.
• Versatile Cooling Options: Standard temperature-controlled forced air cooling, optional stainless steel water cooling for continuous high-load operation.
• Comprehensive Protection & Compliance: Adjustable OVP/OCP/OPP/OT protection, meets EN 61010-1 safety and EN 55011 Class A EMC standards, IP20 rating.
• Broad Industrial Applications: Ideal for EV/automotive high-voltage battery testing, SOH/EOL assessment, battery recycling and production testing.