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Altran Magnetics’ DC Contactor portfolio offers reliable, arc-suppressed power switching for high-voltage DC circuits. Designed for high cycle durability, low thermal dissipation, and extreme environmental resistance, our contactors safeguard critical systems across EV infrastructure, energy storage, and heavy industrial electrification.
Hermetically sealed chambers filled with inert gases (such as hydrogen mixtures) rapidly extinguish electrical arcs during high-voltage breaks, preventing contact welding and thermal degradation.
Integrated dual-coil and PWM economizers reduce holding power consumption by up to 80%, minimizing enclosure heat buildup during continuous energized operation.
Non-polar contact configurations break full load currents in both forward and reverse directions, perfectly suited for BESS charge/discharge cycles and regenerative braking.
Filter our complete line of epoxy-encapsulated and ceramic hermetically sealed DC contactors by continuous ampacity.
Compare electrical parameters across Altran Magnetics' primary high-voltage contactor families.
| Series Family | Switching Voltage | Continuous Current | Sealing Technology | Polarity | Target Applications |
|---|---|---|---|---|---|
| AEV20E | Up to 820 VDC | 20 A | Epoxy Seal | Unidirectional | EV Charger Pre-Charge, Aux Isolation |
| ASEV30 | Up to 1,000 VDC | 30 A – 50 A | Resin Encapsulated | Polarized | Compact Inverters, Solar String Disconnect |
| ALEV50 | Up to 900 VDC | 50 A | Resin Design | Bi-directional Option | Off-Highway Vehicles, DC Aux Bus |
| AEVT60 | Up to 750 VDC | 60 A | Ceramic Hermetic | Bi-directional | Commercial EV Charging, Battery Packs |
| ALEV100 | Up to 1,000 VDC | 100 A – 125 A | Resin Design | Non-Polarized Option | DC Fast Chargers, Commercial Storage |
| AEVF150 / AEV150 | 450 VDC – 900 VDC | 150 A – 200 A | Ceramic / Resin | Polarized / Non-Polar | EV Fleet Chargers, Industrial Motor Drives |
| AEVE250 / AEVF250 | Up to 1,000 VDC | 250 A | Ceramic Hermetic | Bi-directional | High-Power DC Fast Charging (150kW+) |
| AEVE300 / AEVTS300 | 1,000 VDC – 1,800 VDC | 300 A | Ceramic Gas-Filled | Bi-directional | Utility Battery Energy Storage (BESS) |
| AEXS400 / AEVTS400 | 1,000 VDC – 1,800 VDC | 400 A | Ceramic Hermetic | Bi-directional | Grid Energy Storage, Heavy E-Mobility |
| AES500 / AEVT500 | 1,500 VDC – 1,800 VDC | 500 A – 600 A | Ceramic Gas-Filled | Bi-directional | Containerized BESS, Megawatt Charging |
| AEVT1000 | Up to 1,800 VDC | 1,000 A+ | Ceramic Gas-Filled | Bi-directional | Utility Grid Disconnect, Marine Propulsion |
For international buyers in North America, Europe, and Asia-Pacific, component failure carries severe warranty and regulatory risks. Altran Magnetics operates strict, documented quality management systems to guarantee every shipped contactor meets international engineering benchmarks.
Answers to key engineering questions regarding Altran Magnetics' high-voltage DC contactor solutions.
Our DC contactors cover continuous operating voltages from 12 VDC up to 1,500 VDC and continuous current ratings from 10 A to over 1,000 A, with peak overload break capacities tailored for fast-charging and utility battery storage applications.
Epoxy resin designs offer cost-effective, robust environmental protection for industrial and moderate high-voltage DC applications up to 1,000 VDC. Ceramic hermetically sealed models feature inert gas filling (such as hydrogen mixtures) inside a brazed ceramic chamber, eliminating contact oxidation, preventing sustained arcing, and providing superior dielectric isolation at voltages up to 1,800 VDC.
Yes, Altran offers both uni-directional and non-polar (bi-directional) switching models. Bi-directional contactors allow current flow and arc extinction in both directions, making them essential for regenerative braking systems and battery storage charge/discharge cycles.
Custom engineering is a core strength. We customize coil lead lengths, auxiliary connector types, mounting brackets, and busbar spade/stud terminals to match your mechanical layout—releasing the finished assembly under dedicated customer part numbers.
Yes. Complete engineering packages—including STEP 3D models, detailed electrical datasheets, UL file numbers, CE declarations, and RoHS/REACH compliance documentation—are available directly from our engineering team upon request.
Contact our application engineering team today to review your electrical schematic, load profile, and enclosure requirements. We will recommend the optimal contactor solution or design a custom modification.
