ems-charge EV charging product line

40 kW SiC, cooled to keep charging

The 40 kW liquid-cooled module switches on silicon carbide to reach 97.5% peak and 96.8% full-load efficiency across 200–1000 VDC. G65 coolant cold-starts it at −40 °C, standby draws 13 W and the output relay lasts more than 80,000 cycles — built for 120–360 kW ultra-fast chargers.

ems-charge 40 kW liquid-cooled charging module, front, side and three-quarter views
40 kW liquid-cooled · SiC

Silicon carbide, sealed and cooled.

Rated 40 kW with a 1–133 A output across 200–1000 VDC, the module uses SiC MOSFETs to hit 97.5% at peak and 96.8% at full load. The sealed enclosure is cooled by G65 coolant, so there is no fan, no dust ingress and no derating at the top of the power curve.

  • 97.5% peak / 96.8% full-load efficiency on silicon carbide.
  • 1–133 A, 200–1000 VDC — drives 400 V and 800 V platforms from one stage.
  • G65 coolant, −40 °C cold start — stays online through cold-climate winters.
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40 kW module — key specifications
Rated power40 kW
Output voltage200–1000 VDC
Output current1–133 A
Peak efficiency97.5%
Full-load efficiency96.8%
CoolingLiquid (G65)
Cold start−40 °C
Standby power13 W
Relay durability> 80,000 cycles
CertificationsCE · TÜV · cTUVus
Full datasheet

Every number the integrator needs.

ParameterValue
Rated output power40 kW
Input voltage3-phase 400 VAC
Output voltage range200–1000 VDC
Output current1–133 A
Peak efficiency97.5%
Full-load efficiency96.8%
TopologySiC MOSFET · Vienna rectifier + LLC resonant
CoolingLiquid, G65 coolant
Cold start−40 °C
Standby power13 W
Relay durability> 80,000 cycles
EMCClass B
CommunicationCAN bus
ProtectionOvervoltage · overcurrent · overtemperature · short-circuit
CertificationsCE · TÜV · cTUVus
ems-charge 40 kW liquid-cooled SiC module in a rack with coolant hoses connected
SiC advantage

More energy to the battery, less to the radiator.

Swapping IGBT for SiC lifts system efficiency 5–10% and shrinks the cooling volume 30–40%. At the combined stage, that is the difference between 94–95.5% and 97–98.5% — which is why ultra-fast chargers run cooler and last longer on SiC.

  • +5–10% system efficiency versus an equivalent IGBT build.
  • −30–40% cooling volume — smaller cabinets, lower BOM.
  • 490 vs 150 W/m·K thermal conductivity removes heat from the switch faster.
ems-charge 40 kW module liquid coolant ports and rear power connector detail
Liquid cooling

Sealed, silent and built to outlast.

A sealed liquid loop replaces the fan, which means no dust, no noise and no hot-spot derating. The output relay is rated for more than 80,000 switching cycles, and the module sips 13 W in standby.

  • G65 coolant cold-starts at −40 °C and keeps full power in summer heat.
  • 13 W standby keeps a whole cabinet's overnight waste near zero.
  • > 80,000 relay cycles for years of connect and disconnect duty.
Integration

Stack it to ultra-fast power.

Three to nine modules build the 120–360 kW chargers that corridors and depots demand, each module reporting over CAN so the controller balances load and isolates a fault without stopping the session.

3 modules → 120 kW

Dual-gun fast charging for fleets and highway stops.

6 modules → 240 kW

Liquid-cooled ultra-fast for corridor and destination hubs.

9 modules → 360 kW

Peak-rate charging for 800 V EVs with 500 A liquid-cooled guns.

Certifications

Approved for the grids that matter.

The 40 kW module ships with the marks your charger needs to enter Europe and North America, plus EMC Class B for installs near people and homes.

CE TÜV cTUVus EMC Class B RoHS

Compare the 30 kW air-cooled module

Get the 40 kW SiC module datasheet and a sample.

Share your charger's target power, quantity and target market — we respond with the full datasheet, sample lead time and volume pricing within 48 hours.

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