Automotive Grade OEM / ODM Manufacturing

ODM EV AC Charger Suppliers & Manufacturer

Pioneering smart 3.5kW–22kW Level 2 AC wallboxes, dual-socket commercial pedestals, and integrated energy systems engineered for global Charge Point Operators, automotive OEMs, and infrastructure distributors.

Flagship Industrial Series

Commercial & Residential Charging Systems

Explore our factory-engineered configurations certified for global deployment across Europe, the Americas, Asia-Pacific, and emerging electric mobility corridors.

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China 60KW-400KW Integrated DC EV Charging Pile
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OEM 20KW-40KW DC Wall-mounted Charging Station
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ODM China EV-ONE AC EV Charger 3.5KW-22KW
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Executive Whitepaper

The Global Commercial Landscape of AC Electric Vehicle Supply Equipment (EVSE)

As the international transportation sector shifts decisively toward zero-emission powertrains, the economic baseline of public and semi-public charging hinges upon high-uptime, interoperable Alternating Current (AC) charging solutions. While direct-current ultra-fast charging dominates highway corridors, Level 2 AC infrastructure commands over 78% of all charging connection points globally due to its balance of capital expenditure, installation footprint, and vehicle dwell-time synergy.

78.4%
Global Charging Session Share
3.5–22kW
Continuous Power Scaling
99.2%
OCPP Ecosystem Compatibility
< 18 Mo.
CPO Capex Amortization

Grid Balance & Power Density

Modern metropolitan electrical substations cannot support simultaneous multi-megawatt DC draws without billions in grid fortification. AC EVSE enables multi-dwelling residential buildings (MUDs) and enterprise workplace parks to distribute power harmoniously via Dynamic Load Balancing (DLB), pulling within existing transformer capacities while guaranteeing overnight full charges.

  • Mitigates demand spikes on medium-voltage distribution grids
  • Integrates with building management systems via Modbus RTU/TCP

Optimized TCO for Fleet Operators

For municipal transit, corporate pool vehicles, and last-mile logistics fleets where vans and cars dwell for 6 to 10 hours consecutively, installing AC charging points yields an initial capital savings of up to 85% compared to DC fast charging hardware. Operational maintenance is dramatically reduced by eliminating forced-air cooling blowers and liquid pumps.

  • Mean Time Between Failures (MTBF) exceeding 100,000 hours
  • Simplified on-site swap modularity for lower technician overhead

Regulatory and Standard Convergence

Global procurement requires navigating regional electrical codes. China’s supply chain offers comprehensive manufacturing harmonization across Europe (IEC 61851-1, Type 2 Mennekes), North America (SAE J1772 / Type 1 and NACS SAE J3400), China (GB/T 20234.2), and Japan (CHAdeMO / Type 1). Our ODM lines build multi-standard compliance directly into the core chassis.

  • Built-in 6mA DC residual current detection (IEC 62955)
  • MID-certified Class 1 active energy submetering
Manufacturing Precision

China Factory Efficiency & Supply Chain Resilience

Suzhou HizonSun Tech Co., Ltd. operates a high-capacity 10,000 m² clean production center in Kunshan, adjacent to Shanghai’s advanced automotive technology cluster. We leverage vertical integration from circuit board assembly to automated testing to deliver superior performance and reliability.

Vertical Hardware Integration & Cost Control

By producing main controller boards, printed circuit boards (PCBs), enclosure injection molds, and sheet metal fabrication under one roof, our facility shortens iteration cycles and reduces component procurement markups. Our supply chain cluster within the Yangtze River Delta ensures all raw materials—from automotive-grade contactors to flame-retardant polycarbonates (UL94-V0)—are sourced within a 50km radius.

This geographic concentration creates an agile manufacturing environment capable of scaling from initial prototype validation to 50,000 monthly units with exceptional bill-of-materials (BOM) cost efficiency.

Automated Quality Control & Stress Testing

Every AC charger off our Kunshan assembly line passes through automated inspection gates before export packaging:

  • Full-Load Thermal Burn-in: 4 hours continuous cycling at 40°C ambient room under 32A/48A electrical load.
  • Dielectric Hi-Pot & Insulation Test: 2500V AC insulation breakdown verification to safeguard end users.
  • Simulated Environmental Chamber: Temperature testing from -30°C to +55°C, ensuring IP54/IP65 and IK10 impact endurance.
Performance Dimension HizonSun Kunshan Factory (China ODM) Conventional European / US Assembly Standard Low-Tier Sourcing
BOM Cost Efficiency Maximum (Localized tier-1 components & automated lines) 30-45% Savings High overhead due to imported modular components Low cost, but high failure rates & compromised copper thickness
Tooling & Mold Iteration 15–20 Calendar Days for custom industrial housing 60–90 Calendar Days Pre-existing generic molds only; no custom enclosure tooling
Testing Protocols 100% End-of-Line Hi-Pot, 4h Burn-In, Relay Weld Detect Sample-based batch inspection (AQL 1.0) Basic power-on test without dynamic load simulation
Software & Protocol Integration Native OCPP 1.6J/2.0.1, ISO 15118-2/-20, In-house Cloud Core Third-party stack licensing; slow firmware bug fixes Locked proprietary controllers without remote diagnostics
Annual Production Scalability 500,000+ units across 6 dedicated automated SMT/Assembly lines 20,000–50,000 units capacity constraint Variable, non-scalable manual workshop operations
System Architecture

Engineering Specifications: Inside the HizonSun AC Architecture

Our ODM platforms bridge consumer-facing aesthetics with industrial-grade electrical safety. Below is the granular architectural breakdown utilized in our EV-ONE and custom OEM series.

Electrical Protection Array

Every AC charger incorporates comprehensive safeguards: over-voltage, under-voltage, overload, short-circuit, ground-fault leakage, lightning surge protection (4kV/6kV), and over-temperature throttling via dual NTC thermistors on main busbars.

Dual 6mA DC RCD Integration

Meets IEC 62955 and IEC 61008-1 directives by integrating electronic Type B RCD sensors (Type A 30mA AC + 6mA smooth DC leakage detection). Eliminates the need for expensive upstream Type B breakers, cutting contractor installation costs by €120–€180 per bay.

MID Revenue Metering

For commercial monetization and split-billing in residential complexes, units can be fitted with an MID (Measuring Instruments Directive) approved energy meter with an illuminated LCD view window, transmitting real-time active power (kWh) directly into OCPP cloud accounting.

IoT Connectivity Suite

Multi-channel communication board supporting 4G LTE-M / NB-IoT global bands, dual-band 2.4/5GHz Wi-Fi, Ethernet RJ45, and Bluetooth 5.2. Integrated RFID (ISO/IEC 14443 Type A/B, Mifare) allows tap-to-charge authorization or smartphone app Bluetooth pairing.

Application Engineering

Global Deployment Paradigms & Localized Use Cases

AC charging hardware must adapt to varied real-world scenarios—from extreme Scandinavian winters to the tropical humidity of Southeast Asia. Our ODM platforms deliver field-tested durability across all commercial applications.

Multi-Family Dwellings & Apartments

Condominiums face severe electrical limits when multiple residents charge simultaneously. Our AC wallboxes employ an automated master-slave dynamic load balancing topology. A master controller polls the main electrical panel via Modbus, throttling charging rates across 30+ wallboxes to prevent breaker tripping while ensuring balanced distribution.

Dynamic Balancing (DLB) Ready

Workplace & Corporate Fleets

Enterprise campuses leverage our 22kW three-phase units for employee charging. Built-in RFID reader arrays allow company ID badge access, while backend OCPP 1.6J JSON integration ties into corporate payroll or enterprise facility management platforms for precise per-employee energy reporting and reimbursement tracking.

Automated Billing & RFID

Hospitality & Commercial Retail

Hotels, resorts, and shopping centers use destination charging to increase visitor dwell times and revenue. Our custom pedestals support dual Type-2 socket outlets, weatherproof IK10 steel bollard enclosures, and custom powder-coated brand wraps that integrate seamlessly with high-end retail architecture.

Dual Socket Bollard Enclosures

Curbside & Municipal Street Furniture

Dense urban centers lack dedicated driveways, necessitating on-street curbside charging. Our compact IP65 AC modules integrate directly into municipal lamp posts and curbside pedestals, engineered to withstand road salt splash, driving rain, and pedestrian impact.

IP65 / IK10 Weatherproofing
Technology Horizon

Emerging Trends Defining the Next Generation of AC EVSE

The EVSE industry is evolving beyond simple alternating current delivery into an intelligent, grid-interactive edge ecosystem. HizonSun leads this technological shift with continuous R&D innovations.

ISO 15118 Plug & Charge (PnC)

Eliminating RFID cards and smartphone applications entirely, ISO 15118 establishes automated public key infrastructure (PKI) cryptographic authentication directly through the charging cable. The vehicle securely identifies itself, authorizes the session, and triggers backend billing within 2 seconds of plugging in.

V1G Smart Managed Charging & V2G Readiness

Unidirectional smart charging (V1G) responds dynamically to fluctuating electricity tariffs and spot market pricing. Chargers automatically prioritize charging when grid frequency is stable and wholesale energy is cheapest, providing ancillary demand response benefits to utilities.

Solar Photovoltaic + BESS Zero-Carbon Coupling

Integrating local rooftop solar panels, energy storage systems (BESS), and AC chargers via energy management systems (EMS) prevents grid reliance altogether. Chargers track real-time solar surplus, funneling 100% clean, locally generated kilowatt-hours directly into vehicle battery packs.

Co-Development Process

End-to-End ODM / OEM Turnkey Engineering Protocol

From custom industrial styling to global laboratory certification, HizonSun delivers a structured stage-gate development workflow designed to bring customized EV charging hardware to market within 45 to 60 calendar days.

01

Industrial Design & CMF

Concept sketches, 3D parametric CAD modeling, thermal airflow simulation, color-material-finish (CMF) definition, and branding integration tailored to your corporate aesthetic.

02

PCB & Firmware Customization

Custom PCB design, relay and contactor selection, connector wiring harnesses, display UI localization, and proprietary OCPP cloud backend communication profiles.

03

Rapid Prototyping & Tooling

High-precision CNC aluminum prototypes, 3D printed master patterns, rapid steel injection tooling, sheet metal stamping, and IP65 seal gasketing validation.

04

Certification & Mass Ramp

Full support through accredited laboratories (TÜV Rheinland, Intertek, SGS) for CE, CB, UL 2594, and FCC certification, followed by rapid scaling on our automated assembly lines.

Procurement Advisory

Enterprise Buyer Checklist: Evaluating AC EVSE ODM Partners

B2B buyers, infrastructure concession holders, and regional white-label brands should evaluate these six technical metrics when vetting Chinese and global EVSE manufacturing partners:

1. Firmware SDK & OCPP Control

Ensure the manufacturer owns their source code rather than licensing third-party binaries. Complete control of the protocol stack is essential for customizing WebSocket messaging, configuring offline whitelist behaviors, and resolving backend OCPP communication bugs.

2. True Hardware Certification Traceability

Always verify original CB test certificates and test reports from accredited bodies (TÜV SÜD, DEKRA, Intertek) under IEC 61851-1 and IEC 61851-21-2 (EMC), rather than self-declared, unverified CE paper declarations from trading intermediaries.

3. Climatic Ingress & Corrosion Resistance

For coastal or desert deployments, verify ISO 9227 salt spray testing (minimum 480 hours rating) and C5-M industrial anti-corrosion cabinet coatings to prevent galvanic oxidation across external fixings, terminal blocks, and connector pins.

4. Internal Component Derating Margin

Check the internal contactors: 32A nominal output models should utilize automotive-grade contactors rated at 40A or 50A continuous duty. This generous engineering headroom prevents contact welded faults during high-temperature summer charging sessions.

5. Over-The-Air (OTA) Recovery Protocols

Firmware corruption during field updates can disable chargers and hurt brand reputation. Require dual-bank flash memory architecture (A/B memory banks) that enables fail-safe rollback to the previous operational firmware build if an OTA update fails.

6. Long-Term Spare Part SLAs

Contractual commitments must guarantee spare part availability (main control PCBA, RFID reader module, Type 2 charging cables, internal surge arresters) for a minimum of 7 to 10 years after product line discontinuation.

Hardware Catalog

High-Power Commercial AC & Fast DC Charging Catalog

Complete your infrastructure deployment with our export-certified production models, including dual-gun commercial AC pedestals, advertising displays, and integrated DC fast chargers.

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China 60KW-360KW Dual Gun DC EV Charger
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OEM 60KW-240KW DC Fast EV Charging Station with Screen
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China AC EV Charger Suppliers 3.5KW-22KW
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OEM GB Standard AC EV Charger 3.5KW-21KW Dual Gun
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OEM EV-ONE AC EV Charger 3.5KW-22KW
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China 60KW-400KW Integrated DC Charging Pile
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OEM China EV-ONE AC EV Charger 3.5KW-22KW Wallbox
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Direct Engineering Support

Frequently Asked Questions: Global Procurement & Manufacturing

Authoritative technical answers to common questions from enterprise procurement teams, electrical engineers, and charge point operators evaluating our ODM AC charging hardware.

What is the fundamental difference between OEM and ODM engagement models for AC EV chargers?
An OEM (Original Equipment Manufacturer) relationship uses HizonSun’s pre-certified hardware architecture (such as our EV-ONE 7kW/11kW/22kW platforms), applying your brand identity, logo, custom powder-coat casing color, branded packaging, and custom app assets. This offers the fastest time-to-market (typically 2 to 4 weeks).

An ODM (Original Design Manufacturer) project involves custom engineering tailored to your product requirements. We design custom industrial enclosures from scratch, develop bespoke PCB layouts, integrate specialized hardware (such as POS credit card payment terminals or MID meters), and develop proprietary OCPP firmware. ODM cycles typically take 45 to 60 days from CAD sign-off to certified tooling.
How does the internal 6mA DC residual current protection eliminate the need for expensive Type B RCDs?
Standard building distribution boxes are equipped with Type A RCDs designed for alternating current leakages. However, an electric vehicle’s onboard battery can leak smooth direct current (DC) back into the system during faults. If DC leakage exceeds 6mA, it can saturate the magnetic core of standard Type A RCDs, blinding them to normal AC ground faults.

In compliance with IEC 62955, our chargers integrate a high-frequency toroidal fluxgate sensor that detects DC leakage and disconnects the main contactor within 10 milliseconds when leakage reaches 6mA DC. This allows installers to use a standard, economical Type A RCD in the upstream breaker panel, saving significant electrical installation costs per charging point.
Can HizonSun AC chargers seamlessly communicate with any third-party OCPP cloud software?
Yes. All our smart chargers use an independent controller running embedded Linux/RTOS with native OCPP 1.6-J (JSON over WebSockets) and are fully compatible with OCPP 2.0.1. Our engineering team has validated interoperability with leading global charge point management platforms, including Monta, AMPECO, Driivz, Greenlots (Shell Recharge), and ChargeLab.

Operators can point the charger’s WebSocket URL to their own endpoints via web GUI, Bluetooth maintenance app, or local configuration files. We also support mutual TLS (mTLS) for bank-grade cyber security encryption.
How does Dynamic Load Balancing (DLB) operate across both residential single-charger and commercial multi-charger setups?
We offer two distinct Dynamic Load Balancing (DLB) topologies:
  • Home DLB: A current transformer (CT clamp) or Modbus smart energy meter monitors the home's total utility service panel in real time. If household appliances (HVAC, induction cooktops, heat pumps) spike electricity demand, the charger automatically reduces its output current (e.g., throttling from 32A down to 14A). When home demand drops, charging power instantly returns to maximum.
  • Commercial Master-Slave DLB: Multiple chargers communicate over a local Ethernet or RS485 loop without relying on cloud connectivity. The designated master charger monitors the distribution transformer and dynamically allocates available current across active charging sessions, ensuring maximum power delivery without exceeding site electrical limits.
What international certifications do HizonSun AC products carry for global importation?
Our products are engineered to pass rigorous international regulatory testing:
  • European Union: CE Marking under Low Voltage Directive (LVD) 2014/35/EU, Electromagnetic Compatibility (EMC) Directive 2014/30/EU, and Radio Equipment Directive (RED) 2014/53/EU. We also hold CB Scheme certificates from accredited test houses under IEC 61851-1:2019 and IEC 61851-21-2:2018.
  • North America: Built to UL 2594 (Standard for EVSE) and UL 2231-1/-2 (Personnel Protection Systems for EV Supply Circuits), with FCC Part 15 Class B compliance for residential deployments.
  • Environmental Standards: Full RoHS 2.0 (2011/65/EU) and REACH compliance, with flame-retardant enclosures certified to UL 94 V-0.
What is the standard production lead time and Minimum Order Quantity (MOQ) for custom ODM orders?
Standard lead times and MOQs depend on the customization scope:
  • Standard OEM (Logo & Brand CMF): MOQ starts at 50 to 100 units. Typical production turnaround is 14 to 21 working days after artwork approval.
  • Comprehensive ODM (Custom Housing & Bespoke Architecture): MOQ is generally 500 to 1,000 units annually to offset tooling and certification amortizations. Rapid tooling and prototype samples can be completed within 25 days, with full mass production following certification within 45 to 60 days.
HizonSun certificate enlarged view