Explore our premium range of low-voltage distribution modules, junction cabinets, and custom solar combiner assemblies.
Meeting the strict technical requirements of modern electrical grids with advanced engineering and certified standards.
Our solutions feature up to IP67 ingress protection, premium structural integrity, and hybrid locking mechanisms designed to withstand tough environmental factors.
Integration of intelligent components and IoT gateway systems (e.g., FBOX-4G) to support remote monitoring, automated load management, and predictive diagnostics.
We provide full-spectrum OEM and ODM services, ranging from custom metal fabrication in low-voltage distribution lines to smart switchgear integrations.
Established in 2011 in Hangzhou, Zhejiang Province, China, Hangzhou SN Electrical Co., Ltd. has developed into a professional manufacturer of low-voltage electrical systems, industrial power management equipment, and smart distribution components. Benefiting from a robust local industrial ecosystem and key international shipping routes, we provide reliable and stable supply chains to clients worldwide.
Our 18,000-square-meter facility features advanced sheet metal fabrication tooling, CNC stamping machinery, electrostatic powder-coating lines, and specialized final assembly centers. By managing our processes in-house—from design and metal forming to electrical assembly and validation—we maintain tight quality control at every stage of production.
With a workforce of more than 250 skilled employees, SN Electrical specializes in bespoke manufacturing. Our engineers work closely with clients to deliver low-voltage boards, metal control cabinets, wall-mounted panels, and durable outdoor electrical housings that meet strict safety guidelines and international standards.
Our products are engineered to support power distribution systems across a wide range of industrial environments.
Industrial portable units, IP65/IP67 junction devices, and mobile power frames configured with residual current breakers (RCBO) and industrial socket contacts for safe site applications.
High-voltage PV combiner systems and plastic/metal array boxes designed for solar power applications. Engineered with lightning protection modules, DC circuit isolators, and venting components.
Industrial XL-21 floor-standing switchgear cabinets, machine crane control stations, and high-amp distribution centers (up to 800A) built to withstand corrosive atmospheres and high mechanical loads.
Choosing the right material and protection standard is essential to ensure long-term durability and safety in industrial applications.
| Material Type | Ingress Rating | Primary Application Environments | Key Technical Features |
|---|---|---|---|
| ABS & Polycarbonate Plastics | IP40 - IP65 | Indoor residential, modular sub-panels, solar combiner boxes | Non-corrosive, lightweight, high impact resistance, UV stabilized |
| Galvanized Sheet Steel | IP54 - IP65 | Commercial buildings, warehouse sub-panels, standard industrial plants | High mechanical strength, cost-effective, electrostatically powder coated |
| Marine-Grade Stainless Steel | IP65 - IP67 | Chemical processing, coastal locations, heavy industrial environments | Excellent resistance to acids, bases, and salts, durable construction |
| Extruded Aluminium Alloys | IP55 - IP66 | Outdoor cabinets (XL-21), telecommunications, hybrid locks | Good heat dissipation, lightweight, high corrosion resistance |
Our structured workflow ensures that custom projects transition smoothly from initial specifications to final product delivery.
Defining electrical parameters, physical sizing, ingress protection levels, and target installation requirements.
Generating sheet metal mockups, component layouts, thermal assessments, and busbar schematics for client approval.
CNC cutting, bending, robotic welding, surface coating, component wiring, and smart control system integration.
Performing dielectric strength testing, insulation resistance checks, IP ingress testing, and strict QA verification.
Connecting physical power components with digital control networks to improve operating efficiency and visibility.
The digitization of electrical infrastructure requires intelligent hardware at the distribution level. Our smart systems support IoT modules, such as the ZONEWU FBOX-4G/WiFi Gateway, which connect directly with Siemens and other major PLCs.
This connectivity allows operators to monitor phase balancing, detect thermal issues, calculate energy consumption, and receive real-time fault alerts. Building smart capabilities directly into our enclosures helps protect valuable downstream machinery, reduces unscheduled downtime, and simplifies maintenance routines.
Common questions regarding safety standards, custom configurations, and deployment guidelines.
IP65 enclosures protect against dust and low-pressure water jets from any direction. IP67 enclosures provide complete protection against dust and can withstand temporary submersion in water up to 1 meter deep for 30 minutes. IP67 enclosures are typically selected for harsh settings like mines or construction zones exposed to heavy rain.
We test our low-voltage distribution systems, custom enclosures, and industrial switchgear (such as our JP and XL-21 cabinets) according to international IEC and local utility standards. All units undergo dielectric testing, insulation checks, and visual quality audits before shipping.
Yes. Our sheet metal fabrication facility allows us to customize cabinet heights, widths, depths, and cutouts. We also provide powder coating in different RAL colors to match your plant's aesthetic, environmental, or corporate identity needs.
We offer both. We can design and manufacture empty enclosures for local integration, or supply pre-wired systems complete with breakers, contactors, terminals, and metering equipment according to your wiring plans.
Standard lead times range from 15 to 30 days, depending on the design complexity, material specifications (e.g., custom stainless steel or aluminum), and current production queue. We provide detailed timelines during the initial quote stage.
Our high-capacity industrial power units, smart network components, and custom panel configurations.
Take a look inside our 18,000 sqm production facility, testing areas, and metal processing facilities.
SN Electrical
