Automotive-Grade Residential EVSE Infrastructure

OEM Level 2 Charger At Home Factories & Suppliers

Precision Industrial Engineering, High-Density Power Electronics, ISO 15118 / OCPP 2.0.1 Interoperability, and Scalable Turnkey OEM/ODM Manufacturing for Global Grid Integration

Featured Hardware Portfolio

Industrial-Grade EVSE & Fast Charging Lineup (Batch 1)

Explore our factory-direct smart AC wallboxes, high-power DC fast charging systems, and modular battery energy storage solutions built to international grid specifications.

OEM 22-44KW AC Charging Station
OEM 22-44KW AC Charging Station - China Suppliers & Factory for European, American, and Chinese EV Charging Standards
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China CE Certified 60-360KW DC Fast Charger
China CE Certified China 60-360KW DC Fast Charger | EV Charging Pile Suppliers & Factory Suppliers
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China 60KW-400KW Integrated DC EV Charging Pile
China 60KW-400KW Integrated DC EV Charging Pile from China Suppliers - Reliable Factory Commercial Fast Charger
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China 60KW-360KW Dual Gun DC EV Charger Octagonal
China 60KW-360KW Dual Gun DC EV Charger | Octagonal Floor-Mounted Fast Charging Station | GB/IEC/UL/CCS2
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China 60KW-400KW Fast Charger Factory Solution
China 60KW-400KW Integrated DC EV Charging Pile from China Suppliers | Reliable Fast Charger Factory Solution
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China 22-44KW AC Charging Station Customizable
China 22-44KW AC Charging Station - Customizable for China Standards | Reliable Suppliers from Factory
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China 60KW-240KW DC Fast EV Charging Station with 32 Screen
China 60KW-240KW DC Fast EV Charging Station by China Suppliers & Factory | With 32 Advertising Screen & POS
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ODM 100KWh 200KWh Energy Storage Integrated Charging Pile
ODM 100KWh & 200KWh Energy Storage Integrated Charging Pile - Solar ESS + EV Charging from China Factory
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Macro Grid Architecture & Solutions

Decentralized Residential Energy Management & Dynamic Grid Balancing

As mass-market electric vehicle adoption surges, the residential sector has transitioned from passive overnight trickle charging to active, bi-directional nodes within distributed energy resource (DER) ecosystems. Level 2 AC home chargers (ranging from 7.4 kW single-phase to 22 kW three-phase) represent over 80% of all EV energy dispensation globally, placing unprecedented localized stress on municipal low-voltage distribution transformers.

Dynamic Load Balancing (DLB)

Local current transformers (CT clamps) or direct Modbus/RS485 energy meters continuously sample instantaneous whole-home consumption. The OEM Level 2 charger adjusts its PWM pilot signal or ISO 15118 duty cycle in sub-second increments, preventing main circuit breaker trips without requiring expensive service panel upgrades.

  • Sub-second power throttling (6A to 48A continuous)
  • Elimination of expensive 100A-to-200A utility panel overhauls
  • Deterministic fail-safe fallback to 6A if communications drop

Solar PV & BESS Zero-Export Integration

Modern residential EVSE functions as an adaptive sink for intermittent photovoltaic generation. Through seamless API handshake with hybrid inverters and stationary lithium iron phosphate (LFP) storage, chargers track real-time excess solar curve generation, locking charging current precisely to local surplus.

  • Green-only, Eco-hybrid, and Fast boost charging modes
  • Integration with Enphase, SolarEdge, Huawei, and GoodWe
  • Zero net reverse-power injection into urban distribution grids

V2H Bi-directional Vehicle-to-Home

The transition toward ISO 15118-20 and SAE J3400 (NACS) enables off-board residential DC wallboxes and bi-directional AC on-board charger synchronization. OEM Level 2 chargers are now evolving into dual-inversion interfaces capable of powering home microgrids during blackouts or utility peak pricing.

  • Seamless islanding response under grid fault conditions (<20ms)
  • Peak shaving and automated Time-of-Use (ToU) arbitrage
  • Automotive battery health preservation algorithms
10,000m²
Kunshan Factory Area
500k+
Annual Unit Capacity
99.4%
First-Pass SMT Yield
50+
Patents & IP Rights
Commercial & Industrial Standards

Global Regulatory Landscape: North America, European Union, and Asia-Pacific

Supplying OEM Level 2 chargers internationally requires navigating distinct electrical wiring topologies, protective relay mandates, and national cybersecurity statutes. A unified OEM architecture must reconcile split-phase (120/240V) North American grids with three-phase (230/400V) European and APAC electrical standards.

Target Region Electrical Grid Standard Mandatory Safety & Grid Certifications Physical Connector Protocols Cybersecurity & Protocol Mandate
North America (US & Canada) Split-Phase 208V/240V (Up to 80A / 19.2 kW Level 2) UL 2594, UL 2231-1/-2 (20mA CCID GFCI), NEC Article 625, Energy Star SAE J1772 (Type 1), SAE J3400 (NACS/Tesla Compatible) OCPP 1.6J / 2.0.1, California Rule 21, OpenADR 2.0b
European Union & UK Single-phase 230V / 3-phase 400V (3.7 kW to 22 kW) CE-RED, IEC 61851-1, IEC 62955 (6mA DC-RCD residual sensing), UK Smart Regs IEC 62196-2 (Type 2 Mennekes), Shutter Mechanisms UK PSTI Cyber Act, ETSI EN 303 645, OCPP 2.0.1 PnC
Australia & New Zealand Single-phase 230V / 3-phase 415V (7.4 kW to 22 kW) RCM, AS/NZS 3820, AS/NZS 3000 (Wiring Rules), AS/NZS 4777.2 Demand Response IEC 62196-2 Type 2 Tethered / Socketed DRED DRM0 capability, Clean Energy Council Listing
East & Southeast Asia Single/Three-Phase 220V/380V (3.5 kW to 22 kW) GB/T 20234, CQC, TISI (Thailand), SNI (Indonesia), KC (Korea) GB/T, Type 2, CCS combo adaptation National IoT security profiles, Proprietary Operator APIs

Built-In Type B RCD vs. CCID20

HizonSun's OEM mainboards integrate high-frequency fluxgate magnetic sensors capable of detecting both 30mA AC earth leakages and 6mA smooth DC residual currents. This negates the requirement for costly Type B upstream RCD installations in European domestic switchboards, saving end-users over €250 per installation.

PEN Fault Detection (Protective Neutral)

For the UK and Commonwealth regions operating TN-C-S PME earthing arrangements, our hardware incorporates open-PEN conductor fault monitoring. The relay isolates all live phases and neutral within 4 seconds of voltage fluctuating beyond 207V–253V, entirely avoiding the need for dedicated earth electrodes.

Hardware-Level Secure Cryptoprocessors

Meeting the UK PSTI Act and California SB-327 mandates, every OEM residential motherboard is equipped with an automotive-grade secure element (SE/TPM). Cryptographic private keys for TLS 1.3 encryption, Wi-Fi WPA3 enterprise authentication, and Over-the-Air (OTA) firmware integrity verification remain tamper-proof.

Factory Direct Manufacturing Capabilities

Suzhou HizonSun Kunshan Factory: Inside Our 10,000m² Production Line

Operating from our dedicated smart manufacturing facility in Kunshan, Jiangsu Province, Suzhou HizonSun Tech Co., Ltd. controls the complete production chain. By decoupling design from third-party assemblers, we offer tier-one automotive manufacturers, utilities, and charging network brands an unmatched level of OEM customization and quality assurance.

SMT & Robotic Conformal Coating

Our multi-tier Surface Mount Technology (SMT) lines feature 3D Solder Paste Inspection (SPI) and automated optical inspection (AOI) ensuring micron-level solder integrity. Sensitive power measurement and microcontroller circuits undergo automated dual-layer robotic polyurethane conformal coating to prevent moisture, dust, and corrosive salt-fog degradation.

100% Full-Load High-Temperature Burn-In

Every single OEM Level 2 wallbox assembly passes through our automated regenerative burn-in chamber. Units are stressed at 100% continuous rated current (up to 48A / 80A single phase or 32A three-phase) under 50°C ambient temperatures for 4 to 8 hours with continuous oscilloscope monitoring of thermal drift and switching noise.

Extensive Modular OEM Customization

We deliver complete mechanical and firmware re-branding within 4 to 6 weeks. Options encompass injection molded outer enclosures (fire retardant UL 94 V-0 polycarbonate), front glass panel screen printing, custom 4.3" or 7" HMI graphical user interfaces, bespoke mobile apps (iOS & Android), and dedicated OCPP cloud endpoints.

Engineered Deployment Cases

Localized Application Scenarios & Real-World Stress Environments

Residential EVSE must operate flawlessly in environments ranging from sub-zero Scandinavian and Canadian winters to the hyper-arid, high-ambient heat of the Middle East and Australia.

Multi-Family Dwellings & Condo Arrays (MDU)

Condominium parking environments feature constrained main breaker thresholds. Our master-slave local mesh hierarchy allows up to 32 chargers to communicate via local 2.4GHz Wi-Fi or RS-485 bus without reliance on public cloud up-links, dynamically sharing available building headroom while allocating individual tenant billing through RFID / NFC cards.

Sub-Zero Nordic & Alpine Environments (-35°C)

Equipped with low-temperature silicone charging cables that retain elasticity down to -40°C, internal PCB heating trace resistors, and condensation-preventing hydrophobic gore vents. Electronic relays feature cold-welding prevention logic ensuring solid pilot pin contact even when caked with frozen slush.

Tropical & Desert Installations (IP65 / NEMA 4X)

Engineered with double-walled thermal deflection casing, UV-stabilized anti-yellowing PC-ABS plastics, and non-ventilated IP65 sealed compartments. Rated to deliver continuous 11 kW output at 55°C without thermal current derating, tested against severe blowing desert sand and tropical monsoons.

Next-Generation Roadmap

Level 2 Technology Roadmap: Silicon Carbide, ISO 15118-20, & Smart Matter Protocol

The distinction between residential AC charging and entry-level DC fast charging is dissolving. Our Kunshan R&D centre is advancing three transformative technological paradigms for delivery in 2026–2028.

ISO 15118-20 Plug & Charge (PnC)

Eliminating RFID cards and smart phone apps entirely. By executing public key cryptography (PKI) directly over the control pilot (PLC HomePlug GreenPHY), vehicle verification and automated billing occur within 1.2 seconds of physical nozzle insertion, supporting automatic bi-directional discharge parameters.

Micro-DC Silicon Carbide (SiC) Wallboxes (20kW–30kW)

Bypassing the car's constrained On-Board Charger (OBC) via compact DC architecture. Utilizing 1200V Silicon Carbide MOSFET power modules operating at >100kHz switching frequencies, these residential units deliver ultra-dense 20kW–30kW fast top-ups with >96.5% electrical efficiency in a compact wallbox form factor.

Matter-over-Thread Smart Home Mesh Integration

Moving beyond isolated Wi-Fi setups that depend on proprietary cloud servers. Embedding low-power Thread mesh radios running the unified Matter application layer allows OEM chargers to natively synchronize with Apple HomeKit, Google Home, Amazon Alexa, and home solar storage arrays without vendor lock-in.

Procurement & Engineering Q&A

Technical FAQ: OEM Level 2 Charger Selection & Integration

Essential answers for EVSE brand managers, electrical distributors, EPC contractors, and automotive utility procurement executives.

What is the maximum allowable charging current for residential Level 2 EVSE under US NEC Article 625?
Under the National Electrical Code (NEC Article 625), EVSE is categorized as a continuous electrical load, dictating that branch circuit conductors and overcurrent protective devices (OCPD) must be sized at 125% of the charger's rated output. Consequently, a standard 40A Level 2 charger mandates a 50A dedicated circuit breaker. For premium high-output home chargers delivering 48A (11.5 kW), a 60A breaker is required (typically hardwired). For top-tier 80A continuous home charging (19.2 kW), a 100A dedicated branch circuit is mandatory.
How does HizonSun implement Dynamic Load Balancing (DLB) without cloud network latency?
Our OEM home chargers do not rely on remote cloud APIs for local safety-critical load balancing. We deploy physical RS-485 shielded twisted-pair interfaces running industrial Modbus RTU, or zero-latency 2.4GHz local RF/Wi-Fi mesh protocols directly connecting the external main-panel CT clamp meter to the charger's microcontroller. Polling occurs every 200 milliseconds. If the home’s heat pump, oven, or air conditioner draws sudden power, the EVSE throttles its pilot amperage in real time.
What are the distinct differences between Type A + 6mA DC protection and Type B RCDs?
Standard Type A residual current devices (RCDs) only detect sinusoidal alternating currents and pulsating DC fault currents. In electric vehicle charging, on-board charger insulation degradation can generate smooth DC leakage currents. When smooth DC fault currents exceed 6mA, they blind and saturate the magnetic core of standard Type A RCDs, preventing them from tripping during fatal ground faults. HizonSun integrates an onboard 6mA RDC-MD (Residual Direct Current Monitoring Device) compliant with IEC 62955, safely cutting power within 10 milliseconds and removing the requirement for a costly external Type B RCD switch.
Can HizonSun provide NACS (SAE J3400) connectors alongside classic Type 1 and Type 2?
Yes. With North American automakers pivoting to the SAE J3400 standard (Tesla NACS mechanical format), our factory offers native native NACS single-phase charging handles engineered to UL 2251 specifications, as well as dual-plug holster designs. For the European and Australian markets, we maintain full IEC 62196-2 Type 2 tethered cables and motorized shutter-socket variants.
What is the typical OEM/ODM development timeline from industrial concept to mass production?
For standard OEM branding (custom enclosure color injection, laser-etched brand logo, custom UI splash screen, and packaging), turnaround takes 2 to 4 weeks. For complete bespoke ODM development involving novel industrial plastic injection tooling, proprietary motherboard layouts, and dedicated certification lab testing (UL, CE, CB), our engineering cycle is typically 12 to 16 weeks to Golden Sample sign-off.
How does the charging station handle firmware upgrades and OCPP backend migration?
Our controllers run an embedded Linux / FreeRTOS operating system with complete dual-boot A/B memory partitions. This ensures that any Over-the-Air (OTA) firmware upgrade via Wi-Fi, Ethernet, or 4G LTE is 100% fail-safe; if an interruption occurs, the charger automatically rolls back to the previous stable kernel. The backend OCPP URL and credentials can be remotely reconfigured via standard OCPP 1.6J/2.0.1 commands or via a password-protected local WebUI.
Complete Hardware Portfolio

Industrial-Grade EVSE & Fast Charging Lineup (Batch 2)

Explore the second tier of our high-reliability charging catalog, featuring high-power split systems, advertising fast chargers, and smart AC wallboxes compatible with all global EV brands.

ODM 60KW-400KW Integrated DC EV Charging Pile
ODM 60KW-400KW Integrated DC EV Charging Pile | China Suppliers and Factory for Commercial Fast Charging Solutions
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China 40KW-180KW Integrated Floor-Mounted DC EV Charger
China 40KW-180KW Integrated Floor-Mounted DC EV Charger | Dual Gun | China Suppliers & Factory
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China 360KW-720KW Split Type DC Fast EV Charging Station
China 360KW–720KW Split Type DC Fast EV Charging Station | Intelligent Charger 8-12 Guns GB/CE/CCS2
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OEM 32-Inch Advertising DC Charging Pile
OEM 32-Inch Advertising DC Charging Pile: 60-240kW All-in-One Solution from Leading Suppliers
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ODM Mouse-style AC EV Charger 3.5KW-22KW Wallbox
ODM Mouse-style AC EV Charger | 3.5KW-22KW Wallbox & Floor Mounted Station | GB/IEC/UL/JIS/Tesla
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OEM 20KW 30KW 40KW DC EV Charger
OEM 20KW/30KW/40KW DC EV Charger from China Suppliers - Wallbox & Floor-mounted Fast Charging Solutions
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OEM AC EV Charger 3.5KW-22KW Wallbox Compatible with Tesla
OEM AC EV Charger from China Suppliers | 3.5KW-22KW Wallbox & Floor Mounted Station Compatible with Tesla
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China AC EV Charger 3.5KW-21KW Dual Gun
China China AC EV Charger | 3.5KW-21KW Dual Gun Charging Station | Supplier & Factory Direct IP54
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HizonSun certificate enlarged view