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Engineered for high voltage, rapid cycle frequency, zero-cross switching, and harsh industrial environments across Southern California and export hubs.
As the greater Los Angeles industrial corridor advances its decarbonization infrastructure—ranging from advanced aerospace manufacturing hubs in El Segundo to utility-scale Battery Energy Storage Systems (BESS) along the Southern California Edison (SCE) grid—the technical demands placed on electrical control loops have evolved exponentially. Traditional electromechanical contactors and mechanical relays, long plagued by mechanical contact wear, arcing, acoustic noise, and contact bounce, are rapidly being replaced by solid-state switching architectures.
Altran Magnetics stands as an industry-leading manufacturer and regional distributor of high-reliability Solid State Relays (SSRs), High-Voltage DC Contactors, EMI/RFI Line Filters, and Definite Purpose AC Contactors. Through our dedicated distribution network serving Los Angeles, Orange County, and international export routes via the Port of Los Angeles and LAX, we deliver solid-state power control technology designed to withstand high thermal stress, high-frequency duty cycles, and strict electro-magnetic compatibility (EMC) regulations.
Information Gain Insight: Solid-State Relays eliminate electrical arcing entirely through semiconductor-based optical isolation (SCR/Triac or MOSFET/IGBT outputs). Unlike mechanical contactors which degrade after 100,000 to 500,000 operations under full load, solid-state switching topologies provide continuous, maintenance-free operations exceeding tens of millions of cycles, making them essential for zero-downtime automated production lines.
SSRs with zero-crossing detection activate precisely when the AC voltage waveform passes zero volts. This minimizes inrush current, protects sensitive semiconductor loads, and reduces radiated EMI/RFI noise in commercial building management systems.
Our high-voltage DC contactors feature epoxy-sealed or gas-filled ceramic chambers containing inert gases (like hydrogen mixes). This prevents oxidation and rapidly extinguishes DC plasma arcs across bus voltages up to 1,500 VDC.
Input and output terminals are optically isolated up to 4,000 Vrms. High-voltage power surges on the load side are completely decoupled from low-voltage microcontrollers, PLCs, or 24V industrial automation buses.
For design engineers specifying power components in Los Angeles, selecting between solid-state relays, magnetic AC contactors, and epoxy-sealed DC contactors requires a clear evaluation of electrical efficiency, switching speeds, thermal generation, and mechanical life cycles. The matrix below outlines key performance indicators across our primary product platforms:
| Specification Parameter | Industrial Solid State Relay (SSR) | High-Voltage DC Contactor | AC Magnetic / DP Contactor |
|---|---|---|---|
| Primary Application | Precision Heating, Rapid Cycling, PLCs | EV Charging, BESS, Solar Inverters | HVAC Compressors, Motors, Lighting |
| Switching Element | Optically Isolated SCR / Triac / MOSFET | Gas-Filled / Epoxy Sealed Contacts | AgSnO2 Silver Alloy Air Contacts |
| Operate / Release Time | < 0.5 ms to 10 ms (Zero-Cross) | 15 ms – 30 ms | 20 ms – 50 ms |
| Acoustic Noise | Completely Silent (0 dB) | Audible Click on Actuation | Audible Hums & Heavy Mechanical Click |
| Electrical Life (Cycles) | > 50,000,000 (No Contact Wear) | 200,000 @ Rated Load / 1M Mechanical | 100,000 @ AC-3 / 1M Mechanical |
| Max Voltage Range | 48–660 VAC / 12–1,000 VDC | 12–1,500 VDC | 24–600 VAC |
| Thermal Management | Requires Heat Sink (P = I × 1.2W/A) | Integrated Coil Economizer | Natural Air Convection |
Los Angeles is home to diverse high-tech manufacturing, clean energy projects, aerospace production, and international logistics operations. Altran Magnetics provides tailored switching components built to meet local regional requirements.
Aerospace OEMs require extreme component reliability under thermal cycling and mechanical shock. Our industrial Solid State Relays and low-leakage EMI filters are deployed in environmental testing chambers, radar cooling systems, and ground support equipment. Optical isolation shields sensitive control computers from high-voltage transient spikes, ensuring compliance with strict military and aerospace power quality mandates.
Under California Title 24 Building Energy Efficiency Standards, commercial HVAC systems must minimize standby power draw and operate at peak seasonal efficiency. Altran’s 1-pole to 4-pole CUL-certified Definite Purpose (DP) contactors and zero-cross SSRs control duct heaters, cleanroom air scrubbers, and variable refrigerant flow (VRF) units smoothly without causing power line voltage dips or electrical noise in medical labs.
With CARB zero-emission mandates driving the electrification of drayage trucks and port equipment, fast-charging infrastructure requires heavy-duty DC break switching. Our 350A to 500A 1,000V/1,500V gas-filled DC contactors serve as the main safety disconnects in high-power DC fast chargers (CCS/NACS) and automated guided vehicles (AGVs) operating in corrosive maritime salt-air atmospheres.
Solar energy storage installations in Inland Empire and LA County microgrids demand bi-directional DC contactors capable of interrupting fault currents instantaneously. Coupled with capacitor switching contactors (like CJ19 series) for power factor correction, Altran supplies full electrical control trains for utility-scale solar inverters and battery racks.
The industrial landscape in Southern California is governed by stringent environmental regulations, aggressive decarbonization goals, and high commercial electricity rates. Sourcing high-efficiency components from an established local supplier provides major strategic advantages:
At Altran Magnetics, we don't just supply off-the-shelf parts—we deliver engineered power switching solutions. Our manufacturing facilities operate under strict ISO quality management protocols. Every production lot undergoes 100% dielectric withstand, insulation resistance, contact resistance, and operational functional verification before dispatch.
Our engineering team works directly with your design group to assist with custom coil voltages, custom busbar geometry, integrated harness assemblies, and cross-referencing obsolete competitor component numbers.
Get immediate technical clarity regarding local delivery, heat sink selection, certifications, and custom modifications.
We maintain dedicated safety stock for standard panel-mount, DIN rail, and PCB-mount solid-state relays in local stocking hubs. Standard part numbers can ship same-day or next-day across Southern California. Custom harness or specialized busbar modifications typically carry an expedited 2 to 4-week production turn.
As a rule of thumb, an SSR generates approximately 1.0 to 1.2 Watts of heat per Amp of switched current. To select the proper heat sink, use the thermal formula: $T_{j} = T_{a} + P_{d} \times (\theta_{jc} + \theta_{cs} + \theta_{sa})$, where ambient temperature ($T_a$) in Southern California panels should be calculated at a minimum of 45°C to 50°C. Altran engineers can provide exact thermal dissipation charts for your enclosure footprint.
Yes. Our product families carry UL, cUL, CE, and CSA certifications with published UL file numbers. Using UL-recognized components accelerates your panel shop’s UL 508A field certification and ensures quick approval by local Los Angeles County Department of Building and Safety (LADBS) inspectors.
Absolute custom engineering is a core service capability. We manufacture contactors and relays with non-standard coil voltages (e.g., 12VDC, 24VDC, 48VDC, 110VAC, 277VAC), customized mounting brackets, specialized termination hardware, and private-label customer part numbers managed under engineering revision control.
For export orders leaving via Port of Los Angeles or LAX, Altran supplies comprehensive documentation packages including Commercial Invoices, Packing Lists, Certificates of Conformance (RoHS/REACH compliance), HS Tariff Codes, and Country of Origin declarations formatted for smooth customs clearance in LATAM, Europe, and Asia-Pacific markets.
Connect directly with an Altran Magnetics application engineer today. We will review your load requirements, duty cycle, and regulatory constraints to recommend the optimal relay or contactor platform.
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