1. Industry Background: The Demand for Higher Reliability and Efficiency

With the rapid growth of electric vehicle (EV) infrastructure, DC fast chargers have become a core component of urban mobility and commercial energy ecosystems. As projects scale and service uptime becomes critical, differences in component selection and system architecture directly impact product life cycle, operating efficiency, and return on investment.

While many brands offer similar charging capacities, the internal design philosophy and hardware quality vary significantly. Nancome stands out with a strong focus on long-term reliability, efficiency, and component-level optimization.

2. Core Design Advantages of Nancome

2.1 AC Contactor Integration: Reduces Power Loss and Extends Module Life

Nancome chargers are equipped with industrial-grade AC contactors that disconnect the power supply when the charger is idle. This helps reduce power loss by up to 6%, and more importantly, protects the charging modules from long-term voltage exposure, effectively extending their operational lifespan.

2.2 Premium Charging Module: Infy power 260Vac ~ 539Vac Range

Unlike many market alternatives that use modules supporting only 380V ±15% input, Nancome adopts Infy power brand charging modules with a wide 260Vac ~ 530Vac input range. This ensures stable performance in regions with fluctuating grid voltage and provides stronger system adaptability.

2.3 High-Reliability Ceramic DC Contactors

Instead of epoxy resin contactors commonly used in low-cost chargers (which typically last 2–3 years), Nancome uses ceramic-type DC contactors. These components offer superior thermal resistance, mechanical durability, and longer service life, even under continuous high-current operation.

2.4 Precision Metering with Acrel Brand Energy Meters

Nancome integrates Acrel-brand meters in all chargers to ensure accurate power measurement and billing. Acrel is known for its high precision and industrial stability, offering superior data integrity for commercial applications.

2.5 Reliable Switching Power Supply Unit (MORNSUN Brand)

The switching power supply unit features a wide input voltage range, AC/DC compatibility, low power consumption, high efficiency, high reliability, and safety isolation. They ensure the long-term safe and stable operation of the charging station control system.

2.6 Redundant Power Supply Architecture

Each Nancome charger is designed with redundant switching power supply units. This redundant architecture ensures uninterrupted operation and facilitates easy maintenance.

3. Comparative Summary Table

Feature	Nancome DC Charger	Typical Market Product
AC Contactor	Installed – saves 6% power loss, protects modules	Often not installed – continuous load on modules
Charging Module	Infypower, 260Vac ~ 530Vac	Generic, 380V ±15%
DC Contactor	Ceramic – long lifespan	Epoxy resin – 2–3 years only
Electric Meter	Acrel (branded, high precision)	Varies, often unbranded
Power Supply	MORNSUN, wide input voltage range	Usually ≤275V, basic protection
Power Supply Redundancy	Sufficiently provisioned	Minimal or not considered

4. Conclusion

Nancome’s component-level advantage leads to lower long-term costs, fewer maintenance issues, and more reliable field operation. For customers seeking dependable, future-proof EV infrastructure, Nancome offers a superior return on investment and unmatched system durability.