Ultra-compact EA-PSB 20000 Triple 4U series 3-channel bidirectional programmable DC power supplies with wide 60–920V output, 40–340A current, and 10kW per channel (30kW total) autoranging power in a space‑saving 4U 19‑inch rack enclosure. Featuring three independent, galvanically isolated channels, active PFC, up to 96% energy recovery, a built‑in function generator with PV/FC simulation and automotive LV123/124/148 test procedures, and high‑speed EtherCAT, CAN FD, USB, and Ethernet interfaces, they are expertly suited for multi‑component automotive testing, battery simulation, on‑board charger validation, and high‑density automated test systems demanding maximum channel density and energy efficiency.

Model

PSB 20060-340 Triple, PSB 20080-340 Triple, PSB 20200-140 Triple, PSB 20360-80 Triple, PSB 20500-60 Triple, PSB 20920-40 Triple

Total Device Power (Max/Derated)

30000W / 18000W

Per Channel Voltage (CV Range)

0-60V, 0-80V, 0-200V, 0-360V, 0-500V, 0-920V

Per Channel Current (CC Range)

0-40A, 0-60A, 0-80A, 0-140A, 0-340A

Per Channel Power (Max)

10000W

AC Input

208-480V AC, 3ph (active PFC)

Type

Programmable Bidirectional DC Power Supply (3-Channel)

External Control

EtherCAT, CAN FD, Ethernet, USB, Digital I/O

Housing

19" 4U Rackmount

Special Features

Regenerative Sink up to 96%, Autoranging, Function Generator, PV/FC Simulation, EN 50530, MPPT, Automotive LV123/124/148, Battery Test, Master-Auxiliary Bus (up to 8 units), Share Bus, Remote Sense, SCPI, ModBus RTU, Optional Water Cooling

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Description

Model Overview – All Values

Model	Total Device Power (Max/Derated)	Per Channel Voltage (CV)	Per Channel Current (CC)	Per Channel Power (Max)	AC Input (Active PFC)	Type	External Control	Special Features
PSB 20060-340 Triple	30000W / 18000W	0-60V	0-340A	10000W	208-480V AC, 3ph	Programmable Bidirectional DC Power Supply (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O	Regenerative Sink up to 94.5%, Autoranging, Function Generator, PV/FC Simulation, EN 50530, MPPT, Automotive LV123/124/148, Battery Test, Master-Auxiliary Bus (up to 8 units), Share Bus, Remote Sense, SCPI & ModBus RTU, Optional Water Cooling
PSB 20080-340 Triple	30000W / 18000W	0-80V	0-340A	10000W	208-480V AC, 3ph	Programmable Bidirectional DC Power Supply (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O	Regenerative Sink up to 95.0%, Autoranging, Function Generator, PV/FC Simulation, EN 50530, MPPT, Automotive LV123/124/148, Battery Test, Master-Auxiliary Bus (up to 8 units), Share Bus, Remote Sense, SCPI & ModBus RTU, Optional Water Cooling
PSB 20200-140 Triple	30000W / 18000W	0-200V	0-140A	10000W	208-480V AC, 3ph	Programmable Bidirectional DC Power Supply (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O	Regenerative Sink up to 95.1%, Autoranging, Function Generator, PV/FC Simulation, EN 50530, MPPT, Automotive LV123/124/148, Battery Test, Master-Auxiliary Bus (up to 8 units), Share Bus, Remote Sense, SCPI & ModBus RTU, Optional Water Cooling
PSB 20360-80 Triple	30000W / 18000W	0-360V	0-80A	10000W	208-480V AC, 3ph	Programmable Bidirectional DC Power Supply (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O	Regenerative Sink up to 95.5%, Autoranging, Function Generator, PV/FC Simulation, EN 50530, MPPT, Automotive LV123/124/148, Battery Test, Master-Auxiliary Bus (up to 8 units), Share Bus, Remote Sense, SCPI & ModBus RTU, Optional Water Cooling
PSB 20500-60 Triple	30000W / 18000W	0-500V	0-60A	10000W	208-480V AC, 3ph	Programmable Bidirectional DC Power Supply (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O	Regenerative Sink up to 96.0%, Autoranging, Function Generator, PV/FC Simulation, EN 50530, MPPT, Automotive LV123/124/148, Battery Test, Master-Auxiliary Bus (up to 8 units), Share Bus, Remote Sense, SCPI & ModBus RTU, Optional Water Cooling
PSB 20920-40 Triple	30000W / 18000W	0-920V	0-40A	10000W	208-480V AC, 3ph	Programmable Bidirectional DC Power Supply (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O	Regenerative Sink up to 96.0%, Autoranging, Function Generator, PV/FC Simulation, EN 50530, MPPT, Automotive LV123/124/148, Battery Test, Master-Auxiliary Bus (up to 8 units), Share Bus, Remote Sense, SCPI & ModBus RTU, Optional Water Cooling

30-Second Fit Check

Need a multi-channel, high-power bidirectional source/sink? Three independent, galvanically isolated channels in a 4U enclosure.
Each channel: 60V to 920V, up to 340A, and 10kW autoranging; total device power 30kW.
Seamless two-quadrant operation per channel with regenerative energy recovery up to 96%.
Built‑in function generator with automotive test procedures (LV123/124/148), PV/FC simulation, and MPPT tracking.
High-speed interfaces: EtherCAT (1 ms), CAN FD, 1 Gbit Ethernet, USB, plus digital I/O per channel.

What It Is + Why It Matters

Industry's most compact 3-channel bidirectional DC power supply in 4U format, replacing three single-channel devices and saving rack space.
Three independent, fully isolated channels enable parallel testing of motors, inverters, and on-board chargers within the same test setup – accelerating development cycles in fast-moving industries.
Each channel is a complete two-quadrant device with autoranging output and regenerative energy recovery up to 96%, significantly reducing both operational and HVAC energy costs.
Integrated function generator with PV (EN 50530), fuel cell, MPPT, and specialized automotive test routines (LV123, LV124, LV148) for comprehensive component validation.
Built-in EtherCAT (1 ms cycle time), CAN FD, and 1 Gbit Ethernet ensure ultra-fast system integration and data acquisition for demanding automated test environments.

Note: All three channels are galvanically isolated from each other and from the AC input. In sink mode, energy is recovered to the grid; consult local utility regulations. Total device power derates to 18kW at 208V AC input. Must be installed in a closed 19" rack with adequate ventilation or optional water cooling.

Key Specs

AC input: 208-480V AC, 3-phase, active PFC, 45-65Hz; derating at 208V AC input.
Per channel: Voltage 0-60V up to 0-920V; Current 0-40A up to 0-340A; Power 10kW autoranging.
Total device power: 30kW (3 channels × 10kW).
Efficiency: up to 96% in both source and sink modes (energy recovery).
Control panel: 5" TFT colour touchscreen with two rotary knobs; individual channel control.
Interfaces: EtherCAT (2x In/Out), 1 Gbit Ethernet, CAN FD (5 Mbit), USB, Digital In/Out (16-pole) per channel, USB Host (front).
Master-auxiliary bus + per-channel Share bus for up to 8 units parallel (240kW per channel).
Dimensions (WxHxD): 19" x 4U x 668mm (enclosure); Weight: approx. 50 kg (air-cooled), 56 kg (water-cooled).

Integration & Installation

Three independent DC output channels with copper blade terminals on the rear panel; each channel has its own remote sensing and Share bus connectors.
Single three-phase AC input connector (208-480V AC); automatic grid voltage detection with derating to 18kW total at 208V.
Master-auxiliary bus and per-channel Share bus for parallel connection of up to 8 units; channels can also be externally grouped for higher current.
High-speed communication: EtherCAT with 1 ms cycle time; CAN FD at 5 Mbit; 1 Gbit Ethernet; Digital I/O (3x In, 3x Out, 3x Temp) per channel.
Must be installed in a closed 19" rack/cabinet with lockable doors; ensure adequate ventilation or water supply for cooling and grid compliance for energy recovery.

Best for / Not for

Best for: Multi-component automotive testing (motors, inverters, OBCs simultaneously), battery module/pack simulation, fuel cell stack validation, solar inverter testing, and high-density automated test racks requiring three independent, isolated bidirectional DC channels in minimal rack space.
Not for: Applications requiring a single channel with more than 10kW, series connection of channels (not supported), or environments without three-phase AC supply and proper rack cooling.

Selection Checklist + RFQ

Choose per-channel voltage/current rating matching your test requirements (60V, 80V, 200V, 360V, 500V, or 920V).
Verify per-channel power demand ≤ 10kW (autoranging); total device power = 30kW across all three channels.
Confirm three-phase AC supply availability (208-480V AC) and plan for proper circuit protection and grid compliance for energy recovery.
Select cooling option: standard forced air cooling or optional water cooling (stainless steel).
If higher single-channel current is needed, plan to externally parallel the three channels.
For multi-unit parallel systems, specify total channels and total system power (up to 8 units per channel); all channels must share the same voltage rating.