We Design. We Build. We Deliver.
Explore our engineered line of high-voltage DC contactors, magnetic arc suppression switches, and AC/DC power control relays designed for demanding grid-tie and energy storage environments.
Why specialized magnetic blowout and hermetically sealed DC contactors are mandatory for NYC urban battery installs, Upstate microgrids, and ConEdison grid stability.
Under the ambitious mandate of New York State’s Climate Leadership and Community Protection Act (CLCPA), target goals demand 6 GW of energy storage deployment by 2030. Achieving grid resilience across New York City’s tight urban footprint and Upstate’s massive utility-scale wind-and-solar corridors presents unprecedented electromechanical challenges. Unlike Alternating Current (AC) systems—which naturally pass through zero voltage 120 times per second to quench electrical arcs—Direct Current (DC) maintains continuous voltage potential under load. In high-capacity Battery Energy Storage Systems (BESS), breaking a 1000V DC or 1500V DC short-circuit fault creates an intense, sustained electrical arc capable of reaching temperatures over 10,000°C within milliseconds.
As a leading engineering manufacturer and factory supplier serving New York system integrators, EPC developers, and panel builders, Altran Magnetics engineers high-voltage DC contactors designed to safely isolate utility lithium-ion chemistry packs (LFP/NMC), flow batteries, and solar PV strings. Our contactor designs incorporate gas-filled hermetic ceramic chambers, high-field magnetic blowout magnets, and PWM coil economizers to deliver zero-leakage circuit protection compliant with New York City Fire Department (FDNY) Rule 3 RCNY §608-01 and NFPA 855 safety standards.
Enclosed in a hydrogen/nitrogen gas-filled chamber under positive pressure. Prevents contact oxidation, quenches high-voltage DC arcing in less than 20ms, and eliminates open-flame hazards in urban NYC indoor installations.
Permanent rare-earth neodymium magnets strategically positioned surrounding the main contacts. The resulting Lorentz force physically stretches and forces the electrical arc into arc chutes for immediate extinction.
High-inrush pickup coil quickly closes contacts with max force to eliminate bounce. Integrated pulse-width modulation (PWM) automatically reduces holding power by up to 85%, minimizing thermal heat dissipation inside BESS enclosures.
Compare electrical ratings across Altran Magnetics' main DC power switching platforms for battery racks, pre-charge circuits, and power conversion systems (PCS).
| Platform Series | Continuous Current (A) | Max DC Voltage (VDC) | Arc Extinction Method | Short-Circuit Breaking | Target New York Application |
|---|---|---|---|---|---|
| EVD-100 Series | 100A Continuous | 1000V DC | Epoxy Encapsulated Gas Chamber | 2000A @ 1000VDC | Commercial Solar+Storage & Pre-charge Circuits |
| EVD-350 Series | 350A Continuous | 1000V / 1500V DC | Ceramic Sealed + NdFeB Blowout | 3500A @ 1000VDC | NYC Urban BESS Racks & EV DC Fast Charging |
| EVD-400 Heavy Duty | 400A Continuous | 1200V / 1500V DC | Hydrogen-Sealed Ceramic Arc Chute | 4000A @ 1200VDC | ConEdison Grid Tie Substation Energy Storage |
| EVD-500 High Capacity | 500A Continuous | 1500V DC High Voltage | Dual-Directional Magnetic Blowout | 5000A @ 1500VDC | Utility-Scale Peaker Plant Solar/BESS Farms |
| NXC/CJ19 Auxiliary | 20A - 100A AC/DC | 230V / 690V | Air Break with Inrush Suppression | Standard Fault Withstand | HVAC Thermal Management & Balance of Plant (BOP) |
From high-density Manhattan commercial buildings to massive Upstate solar-plus-storage facilities, our DC contactors ensure safe switching under rigid state standards.
Indoor BESS installations inside NYC high-rises must abide by stringently monitored safety guidelines. Altran Magnetics' hermetically sealed, non-outgassing ceramic DC contactors ensure that arc quenching occurs inside a isolated capsule, preventing combustible thermal runaway ignition inside mechanical rooms.
Coastal microgrids installed in Long Island and Queens face high atmospheric humidity and salt fog. Our contacts feature IP67-equivalent hermetic seals that totally lock out moisture, dust, and corrosive vapors, preserving low contact resistance (Rcontact < 0.3 mΩ) over decades.
Replacing legacy fossil-fuel peaker plants in Western and Central New York requires 1500VDC high-capacity battery architectures. The EVD-500 series handles continuous currents up to 500A with bidirectional interrupting capabilities, permitting seamless charge/discharge cycles without contact welding.
High-power 350kW+ EV charging hubs paired with battery storage buffers subject contactors to extreme load cycling. Our components deliver over 300,000 electrical operations under heavy load and up to 1,000,000 mechanical operations for duty-cycle longevity.
Compact 50A to 150A pre-charge and main disconnect contactors engineered specifically for wall-mounted domestic LFP battery banks, providing fast emergency breakdown in the event of an islanding grid fault.
Pairing DC contactors with our auxiliary AC magnetic contactors (such as LC1D / CJ19 series) allows complete control over liquid chillers, thermal pumps, and HVAC units vital for suppressing thermal runaways.
Altran Magnetics brings decades of US manufacturing capability, rigorous laboratory testing, and tailored engineering support from our Sterling, Illinois center.
Products engineered to UL 60947-4-1, cUL, CE, CSA, and RoHS/REACH compliance standards. Certification data, UL File references, and compliance packages accompany all qualification test samples.
Our engineering team customizes auxiliary contacts, busbar shape dimensions, wire harness connectors, and coil voltage profiles (12V, 24V, 48V, 110V) to fit your custom BESS enclosure seamlessly.
Avoid supply chain gridlock. With factory-direct engineering back-up in Sterling, IL, and designated regional distribution hubs, we guarantee scheduled safety stock releases and rapid lead times.
Answers to common engineering questions regarding certification, arc extinction, lead times, and custom BESS switching requirements.
Consult directly with our application engineers. Request datasheets, 3D STEP files, certification packages, or custom engineering quotes today.
Get Catalog