EA-PSB Series

Compact, Bidirectional DC Power Supplies, up to 3.84MW

EA-PSB Series

Compact, Bidirectional DC Power Supplies, up to 3.84MW

The EA PSB 20000 and 10000 Series bidirectional DC power supplies combine high efficiency, precision, and versatility. Regenerative operation returns energy to the grid at over 96% efficiency, reducing heat and noise. True autoranging maximizes power across wide voltage and current ranges, while control interfaces enable seamless integration. The 20000 Series adds three channels, 1 ms response, safety sense, a function generator, and preloaded routines for battery, fuel cell, and PV simulation.

Why Choose EA-PSB

Regenerative Efficiency

They can recover up to 96.5% of absorbed energy, returning it to the AC grid, which reduces energy costs and heat generation

True Autoranging

These supplies deliver maximum power across a wide range of voltages and currents, enhancing flexibility in testing applications

Integrated Function Generator

Built-in waveform generation capabilities, including arbitrary waveforms, facilitate comprehensive testing without the need for additional equipment

Several Load Modes

Simulate DC load modes in CV, CC, CP, CR with fast crossover

Key Specifications

  • From 80W to 30kW per unit
  • Scalable up to 3.84MW in parallel configurations
  • Voltage Range: 0–60V to 0–2000V
  • Current Range: 0–6A to 0–1000A
  • High Efficiency: Achieves over 96% energy recovery efficiency, reducing operational costs and heat generation
  • Wide Input Voltage Range: Supports single-phase 110/120V and 208V to 240V AC, as well as three-phase 208V to 480V AC, accommodating various global power standards
  • True Autoranging: Automatically adjusts voltage and current to maintain full power output across a wide range
  • Air-Cooled
  • Function Generator: Supports sine, triangle, square, trapezoidal, and arbitrary waveforms; ideal for simulations like battery, fuel cell, and photovoltaic testing
  • Interface Options: Includes USB, analog, and a “Plug’n Play” slot for additional interfaces such as Ethernet, CAN, Profibus, and more
  • User Interface: Features a color TFT touchscreen for intuitive control and setup

Bidirectional Supplies Offer Full Solutions from a Single Instrument

3 Fast Precise Outputs

The EA PSB 20000 Series delivers three independent, fully isolated channels for parallel testing of motors, inverters, and onboard chargers—accelerating development and validation. Safety sense ensures accurate voltage at the device under test (DUT), protecting sensitive equipment, while each channel provides up to 10 kW, 0–920V, and 340A, with 1ms communication for fast, precise, and reliable operation.

Bidirectional DC Power in a Single Instrument

EA Elektro-Automatik bidirectional DC supplies can both source and sink power (Quadrants I & II), making them ideal for testing batteries, solar inverters, and automotive powertrains. For full four-quadrant operation across positive and negative voltages and currents, Keithley Source Measure Units are recommended.

True Autoranging for Maximum Flexibility

EA Elektro-Automatik products feature autoranging, enabling the supply or load to deliver full rated power across a wide range of voltages and currents—even down to 33% of maximum output. Unlike traditional power supplies, which reach full power only at their maximum voltage and current, EA autoranging sources automatically adjust, providing more current at lower voltages or more voltage at lower currents. This ensures efficient use of the supply and allows a single unit to cover multiple voltage and current combinations that would otherwise require several devices.

Up to 96% Energy Recovery

EA regenerative loads and bidirectional supplies capture sunk energy and feed it back to the facility or public grid, reducing waste, cutting cooling requirements, and improving test efficiency.

Built-In Function Generator

Integrated in many EA supplies and loads, the function generator creates standard or custom waveforms—scaling across parallel units—to simulate solar cells, test inverter efficiency, or validate automotive standards (LV123, LV124, LV148).

Featured Video

PSB Bidirectional DC Power Supplies Product Intro Video

EA-PSB 10000 4U
ModelPowerVoltageCurrent RangeChannels
EA PSB 10060 4U0–30 kW0–60 V0–1000 A per channel1 Channel
EA PSB 10080 4U0–30 kW0–80 V0–1000 A per channel1 Channel
EA PSB 10200 4U0–30 kW0–420 V0–420 A per channel1 Channel
EA PSB 10360 4U0–30 kW0–240 V0–240 A per channel1 Channel
EA PSB 10500 4U0–30 kW0–180 V0–180 A per channel1 Channel
EA PSB 10750 4U0–30 kW0–120 V0–120 A per channel1 Channel
EA PSB 10920 4U0–30 kW0–125V0–125 A per channel1 Channel
EA PSB 11000 4U0–30 kW0–80 V0–80 A per channel1 Channel
EA PSB 11500 4U0–30 kW0–60 V0–60 A per channel1 Channel
EA PSB 12000 4U0–30 kW0–40 V0–40 A per channel1 Channel
EA-PSB 10000 3U
ModelPowerVoltageCurrent RangeChannels
EA PSB 10060 170 3U0–5 kW0–60 V0–170 A per channel1 Channel
EA PSB 10080 170 3U0–5 kW0–80 V0–170 A per channel1 Channel
EA PSB 10200 70 3U0–5 kW0–200 V0–70 A per channel1 Channel
EA PSB 10360 40 3U0–5 kW0–360 V0–40 A per channel1 Channel
EA PSB 10500 30 3U0–5 kW0–500 V0–30 A per channel1 Channel
EA PSB 10750 20 3U0–5 kW0–750 V0–20 A per channel1 Channel
EA PSB 10920 20 3U0–5 kW0–920 V0–20 A per channel1 Channel
EA-PSB 10000 2U
ModelPowerVoltageCurrent RangeChannels
EA PSB 10060 120 2U0–3 kW0–60 V0–120 A per channel1 Channel
EA PSB 10060 60 2U0–1.5 kW0–60 V0–60 A per channel1 Channel
EA PSB 10080 120 2U0–3 kW0–80 V0–120 A per channel1 Channel
EA PSB 10080 60 2U0–1.5 kW0–80 V0–60 A per channel1 Channel
EA PSB 10200 25 2U0–1.5 kW0–200 V0–25 A per channel1 Channel
EA PSB 10200 50 2U0–3 kW0–200 V0–50 A per channel1 Channel
EA PSB 10360 15 2U0–1.5 kW0–360 V0–15 A per channel1 Channel
EA PSB 10360 30 2U0–3 kW0–360 V0–30 A per channel1 Channel
EA PSB 10500 10 2U0–1.5 kW0–500 V0–10 A per channel1 Channel
EA PSB 10500 20 2U0–3 kW0–500 V0–20 A per channel1 Channel
EA PSB 10750 06 2U0–1.5 kW0–750 V0–6 A per channel1 Channel
EA PSB 10750 12 2U0–3 kW0–750 V0–12 A per channel1 Channel
EA PSB 11000 10 2U0–3 kW0–1000 V0–10 A per channel1 Channel
EA PSB 11500 06 2U0–3 kW0–1500 V0–6 A per channel1 Channel
EA-PSB 20000 Triple 4U
ModelPowerVoltageCurrent RangeChannels
PSB 20060 340 Triple 4U0–10 kW0–60 V0–340 A per channel3 Channels
PSB 20080 340 Triple 4U0–10 kW0–80 V0–340 A per channel3 Channels
PSB 20200 140 Triple 4U0–10 kW0–200 V0–140 A per channel3 Channels
PSB 20360 80 Triple 4U0–10 kW0–360 V0–80 A per channel3 Channels
PSB 20500 60 Triple 4U0–10 kW0–500 V0–60 A per channel3 Channels
PSB 20920 40 Triple 4U0–10 kW0–920 V0–40 A per channel3 Channels
EA-PSB 20000 Triple 3U
ModelPowerVoltageCurrent RangeChannels
PSB 20060 170 Triple 3U0–5 kW0–60 V0–170 A per channel3 Channels
PSB 20080 170 Triple 3U0–5 kW0–80 V0–170 A per channel3 Channels
PSB 20200 70 Triple 3U0–5 kW0–200 V0–70 A per channel3 Channels
PSB 20360 40 Triple 3U0–5 kW0–360 V0–40 A per channel3 Channels
PSB 20500 30 Triple 3U0–5 kW0–500 V0–30 A per channel3 Channels
PSB 20920 20 Triple 3U0–5 kW0–920 V0–20 A per channel3 Channels

Why Choose EA-PSB

Regenerative Efficiency

They can recover up to 96.5% of absorbed energy, returning it to the AC grid, which reduces energy costs and heat generation

True Autoranging

These supplies deliver maximum power across a wide range of voltages and currents, enhancing flexibility in testing applications

Integrated Function Generator

Built-in waveform generation capabilities, including arbitrary waveforms, facilitate comprehensive testing without the need for additional equipment

Several Load Modes

Simulate DC load modes in CV, CC, CP, CR with fast crossover

Key Specifications

  • From 80W to 30kW per unit
  • Scalable up to 3.84MW in parallel configurations
  • Voltage Range: 0–60V to 0–2000V
  • Current Range: 0–6A to 0–1000A
  • High Efficiency: Achieves over 96% energy recovery efficiency, reducing operational costs and heat generation
  • Wide Input Voltage Range: Supports single-phase 110/120V and 208V to 240V AC, as well as three-phase 208V to 480V AC, accommodating various global power standards
  • True Autoranging: Automatically adjusts voltage and current to maintain full power output across a wide range
  • Air-Cooled
  • Function Generator: Supports sine, triangle, square, trapezoidal, and arbitrary waveforms; ideal for simulations like battery, fuel cell, and photovoltaic testing
  • Interface Options: Includes USB, analog, and a “Plug’n Play” slot for additional interfaces such as Ethernet, CAN, Profibus, and more
  • User Interface: Features a color TFT touchscreen for intuitive control and setup

Bidirectional Supplies Offer Full Solutions from a Single Instrument

3 Fast Precise Outputs

The EA PSB 20000 Series delivers three independent, fully isolated channels for parallel testing of motors, inverters, and onboard chargers—accelerating development and validation. Safety sense ensures accurate voltage at the device under test (DUT), protecting sensitive equipment, while each channel provides up to 10 kW, 0–920V, and 340A, with 1ms communication for fast, precise, and reliable operation.

Bidirectional DC Power in a Single Instrument

EA Elektro-Automatik bidirectional DC supplies can both source and sink power (Quadrants I & II), making them ideal for testing batteries, solar inverters, and automotive powertrains. For full four-quadrant operation across positive and negative voltages and currents, Keithley Source Measure Units are recommended.

True Autoranging for Maximum Flexibility

EA Elektro-Automatik products feature autoranging, enabling the supply or load to deliver full rated power across a wide range of voltages and currents—even down to 33% of maximum output. Unlike traditional power supplies, which reach full power only at their maximum voltage and current, EA autoranging sources automatically adjust, providing more current at lower voltages or more voltage at lower currents. This ensures efficient use of the supply and allows a single unit to cover multiple voltage and current combinations that would otherwise require several devices.

Up to 96% Energy Recovery

EA regenerative loads and bidirectional supplies capture sunk energy and feed it back to the facility or public grid, reducing waste, cutting cooling requirements, and improving test efficiency.

Built-In Function Generator

Integrated in many EA supplies and loads, the function generator creates standard or custom waveforms—scaling across parallel units—to simulate solar cells, test inverter efficiency, or validate automotive standards (LV123, LV124, LV148).

Featured Video

PSB Bidirectional DC Power Supplies Product Intro Video

EA-PSB 10000 4U
ModelPowerVoltageCurrent RangeChannels
EA PSB 10060 4U0–30 kW0–60 V0–1000 A per channel1 Channel
EA PSB 10080 4U0–30 kW0–80 V0–1000 A per channel1 Channel
EA PSB 10200 4U0–30 kW0–420 V0–420 A per channel1 Channel
EA PSB 10360 4U0–30 kW0–240 V0–240 A per channel1 Channel
EA PSB 10500 4U0–30 kW0–180 V0–180 A per channel1 Channel
EA PSB 10750 4U0–30 kW0–120 V0–120 A per channel1 Channel
EA PSB 10920 4U0–30 kW0–125V0–125 A per channel1 Channel
EA PSB 11000 4U0–30 kW0–80 V0–80 A per channel1 Channel
EA PSB 11500 4U0–30 kW0–60 V0–60 A per channel1 Channel
EA PSB 12000 4U0–30 kW0–40 V0–40 A per channel1 Channel
EA-PSB 10000 3U
ModelPowerVoltageCurrent RangeChannels
EA PSB 10060 170 3U0–5 kW0–60 V0–170 A per channel1 Channel
EA PSB 10080 170 3U0–5 kW0–80 V0–170 A per channel1 Channel
EA PSB 10200 70 3U0–5 kW0–200 V0–70 A per channel1 Channel
EA PSB 10360 40 3U0–5 kW0–360 V0–40 A per channel1 Channel
EA PSB 10500 30 3U0–5 kW0–500 V0–30 A per channel1 Channel
EA PSB 10750 20 3U0–5 kW0–750 V0–20 A per channel1 Channel
EA PSB 10920 20 3U0–5 kW0–920 V0–20 A per channel1 Channel
EA-PSB 10000 2U
ModelPowerVoltageCurrent RangeChannels
EA PSB 10060 120 2U0–3 kW0–60 V0–120 A per channel1 Channel
EA PSB 10060 60 2U0–1.5 kW0–60 V0–60 A per channel1 Channel
EA PSB 10080 120 2U0–3 kW0–80 V0–120 A per channel1 Channel
EA PSB 10080 60 2U0–1.5 kW0–80 V0–60 A per channel1 Channel
EA PSB 10200 25 2U0–1.5 kW0–200 V0–25 A per channel1 Channel
EA PSB 10200 50 2U0–3 kW0–200 V0–50 A per channel1 Channel
EA PSB 10360 15 2U0–1.5 kW0–360 V0–15 A per channel1 Channel
EA PSB 10360 30 2U0–3 kW0–360 V0–30 A per channel1 Channel
EA PSB 10500 10 2U0–1.5 kW0–500 V0–10 A per channel1 Channel
EA PSB 10500 20 2U0–3 kW0–500 V0–20 A per channel1 Channel
EA PSB 10750 06 2U0–1.5 kW0–750 V0–6 A per channel1 Channel
EA PSB 10750 12 2U0–3 kW0–750 V0–12 A per channel1 Channel
EA PSB 11000 10 2U0–3 kW0–1000 V0–10 A per channel1 Channel
EA PSB 11500 06 2U0–3 kW0–1500 V0–6 A per channel1 Channel
EA-PSB 20000 Triple 4U
ModelPowerVoltageCurrent RangeChannels
PSB 20060 340 Triple 4U0–10 kW0–60 V0–340 A per channel3 Channels
PSB 20080 340 Triple 4U0–10 kW0–80 V0–340 A per channel3 Channels
PSB 20200 140 Triple 4U0–10 kW0–200 V0–140 A per channel3 Channels
PSB 20360 80 Triple 4U0–10 kW0–360 V0–80 A per channel3 Channels
PSB 20500 60 Triple 4U0–10 kW0–500 V0–60 A per channel3 Channels
PSB 20920 40 Triple 4U0–10 kW0–920 V0–40 A per channel3 Channels
EA-PSB 20000 Triple 3U
ModelPowerVoltageCurrent RangeChannels
PSB 20060 170 Triple 3U0–5 kW0–60 V0–170 A per channel3 Channels
PSB 20080 170 Triple 3U0–5 kW0–80 V0–170 A per channel3 Channels
PSB 20200 70 Triple 3U0–5 kW0–200 V0–70 A per channel3 Channels
PSB 20360 40 Triple 3U0–5 kW0–360 V0–40 A per channel3 Channels
PSB 20500 30 Triple 3U0–5 kW0–500 V0–30 A per channel3 Channels
PSB 20920 20 Triple 3U0–5 kW0–920 V0–20 A per channel3 Channels