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Specifically matched for electric vehicle chargers (SPKLU), battery storage systems (BESS), solar inverters, and heavy industrial automation in Jakarta.
As the Special Capital Region of Jakarta accelerates its transition toward a fully electrified transport network under Presidential Regulation (Perpres No. 55/2019), the demand for high-reliability, heavy-duty electrical switching components has reached an unprecedented high. Electric Vehicle (EV) charging stations (SPKLU), electric bus rapid transit fleets (TransJakarta), and industrial Battery Energy Storage Systems (BESS) require high-voltage DC contactors capable of safely switching direct current at potentials reaching 1,000 VDC to 1,500 VDC.
Unlike alternating current (AC) systems where voltage crosses the zero-threshold 100 to 120 times per second—allowing electric arcs to naturally extinguish—direct current maintains a continuous electrical potential. When contacts break an active DC circuit under heavy loads (such as a 400A fast-charging session), a severe ionization arc is established. Without immediate and reliable arc suppression, this energy generates thermal points exceeding 3,000°C, causing contact welding, structural housing degradation, and catastrophic equipment failure.
Our custom OEM high-voltage DC contactors are specifically engineered to eliminate these vulnerabilities. Utilizing epoxy-sealed ceramic vacuum technology, inert gas pressurization (Nitrogen/Hydrogen mixtures), and permanent magnetic blowouts, our components guarantee lightning-fast arc stretching and extinction. Designed to endure the extreme ambient temperatures and high relative humidity characteristic of the Jabodetabek region, our supply capabilities empower Jakarta's OEM charging station manufacturers and fleet operators with uncompromised system safety.
Hermetically sealed chambers filled with pressurized inert gas prevent contact oxidation while blowing out high-voltage electrical arcs within milliseconds.
Built to withstand Jakarta's average humidity levels of 80%-90% and high ambient operation temperatures up to 85°C without dielectric degradation.
Symmetrical magnetic layout allows effortless bi-directional current flow, perfect for V2G (Vehicle-to-Grid) and regenerative braking applications.
Deployment of high-voltage components in Indonesia demands strict attention to local environmental conditions, urban layout, and electrical power grid behavior. Below are key applications where our custom OEM contactors deliver critical structural operational integrity across Jakarta:
Along the Trans-Java toll road network terminating in Jakarta, 150kW to 350kW DC Fast Chargers subject contactors to sudden, intense current inrushes and high duty cycles. Our 300A-500A sealed DC contactors incorporate integrated economizer coils to reduce coil power consumption by up to 80% during prolonged charging cycles, limiting cabinet heat accumulation in un-conditioned outdoor enclosures.
Heavy commercial transit vehicles demand rigorous high-power switching. Depot pantograph and heavy plug-in chargers require bi-directional contactors that tolerate repeated mechanical switching up to 300,000 cycles. Our contactors feature specialized Silver-Tin-Oxide ($AgSnO_2$) matrix alloys that prevent surface erosion under 800V busbar loads.
Commercial hubs in Sudirman Central Business District (SCBD) and industrial parks in Cikarang/Karawang are pairing PLTS Atap (Solar PV) with lithium BESS units to offset PLN peak tariffs. Our 1000V/1500V DC relays act as rapid isolation switches, disconnecting battery strings within 10 milliseconds during fault events to protect multi-megawatt assets.
Jakarta’s millions of ride-hailing two-wheelers are rapidly adopting battery swapping models. High-density swap cabinets require compact, cost-effective 50A to 150A DC relays mounted on DIN rails or customized PCBs. We supply ultra-compact contactors designed to fit into tight modular battery swapping bays without compromising insulation distances.
A technical side-by-side evaluation highlighting why standard AC switching gear fails prematurely in high-voltage EV applications.
| Performance Parameter | Standard Industrial AC Contactor | Our OEM Sealed HV DC Contactor | Engineering Benefit for Jakarta OEMs |
|---|---|---|---|
| Arc Extinction Method | Air arc chutes relying on AC zero-crossing | Gas-filled hermetic chamber + Magnetic blowout | Prevents arc holding; zero risk of external fire in humid environments. |
| Max DC Breakdown Voltage | Limited to ≤ 60 VDC to 120 VDC | Up to 1,000 VDC – 1,500 VDC | Fully compliant with 800V EV architectures and fast chargers. |
| Contact Erosion Rate | High under continuous DC arcing | Ultra-low; $AgSnO_2$ alloy composition | Extends mechanical and electrical life past 200,000 operations. |
| Environmental Protection | Open contact structure (IP00/IP20) | Hermetically sealed (IP67 internal contact space) | Immune to dust, salt fog, high humidity, and atmospheric pollutants. |
| Coil Power Consumption | Continuous full holding power (~15W-30W) | Dual-coil with pulse economizer (< 2W holding) | Reduces thermal dissipation inside sealed charging cabinets. |
| Short-Circuit Withstand | Moderate; potential contact bounce welding | Up to 3,000A fault current carry capability | Protects battery packs during sudden downstream short-circuits. |
As a specialized manufacturer and global supplier, we do not simply distribute catalog components. We partner directly with system design engineers, electrical architects, and purchasing directorates to develop bespoke switching solutions engineered around your exact mechanical and electrical envelopes.
Integrate custom auxiliary switch configurations (1NO, 1NC, or dual auxiliary circuits) for real-time state feedback to the Charger Main Control Board or EV BMS controller.
Choose between top-mounted female M6/M8 threaded studs, custom bent solid copper busbars, or PCB solder pins engineered to mate seamlessly with your internal power distribution panel.
We supply coils wound for 12 VDC, 24 VDC, 48 VDC, or wide-voltage AC/DC inputs (100V-240V) with optional built-in EMI suppression diodes to eliminate inductive voltage spikes.
100% of manufactured units undergo automated testing for contact resistance, insulation resistance at 2,500 VAC, pick-up/drop-out voltage thresholds, and gas leak detection.
All product families are built to comply with UL 60947-4-1, cUL, CE, CSA, and RoHS standards, giving your final machinery seamless export clearance to European and North American markets.
With direct shipping routes into Tanjung Priok Port and flexible warehousing programs, we ensure stable lead times, avoiding assembly line shutdowns for Indonesian manufacturers.
Clear, direct answers regarding customization, technical parameters, international compliance, and local logistics.
Standard sample modifications (such as custom wire harness lengths or specific coil voltages) can be assembled and shipped within 7 to 10 working days. Fully custom tooling for new housing shapes or busbars typically requires 3 to 4 weeks for prototype delivery via express air freight directly to Jakarta.
Our high-voltage contactors utilize Class H (180°C rated) magnet wire for coils and high-temperature epoxy encapsulants. Combined with internal dual-coil economizers, current consumption drops dramatically after pull-in, minimizing internal temperature rise and maintaining stable switching performance at ambient temperatures up to 85°C.
While our core switching chambers are manufactured in our certified overseas factories to ensure strict high-vacuum ceramic quality, we partner with Indonesian original equipment manufacturers to facilitate localized sub-assembly, custom busbar bending, and enclosure integration to assist in fulfilling overall TKDN (Tingkat Komponen Dalam Negeri) threshold percentages.
Yes. Our engineering team specializes in cross-referencing legacy components from major global brands. By comparing coil resistance, continuous current ratings, short-circuit withstand, and physical mounting footprints, we can recommend a drop-in replacement that meets or exceeds original specifications at a significantly reduced unit cost.
Every shipment includes complete Certificates of Conformance (CoC), factory routine inspection data sheets, material safety compliance statements (RoHS/REACH), and published UL/CE file numbers. Custom batch testing reports (such as X-ray inspection of ceramic seals) can be provided upon request.
Epoxy-sealed gas contactors completely isolate the electrical switching contacts from ambient air. This prevents oxidation of silver contacts, eliminates the risk of sparking in potentially explosive environments (such as near battery off-gassing), and ensures zero performance degradation in high humidity.
Consult directly with our application engineers to review your circuit schematics, request CAD models, or obtain custom sample units for testing and validation.
