QOL Series | Region-Ready Load Centers
Authentic certifications. Real-world compatibility. Global project reliability.
High-Quality Load Center for Global Export
QOL Series Distribution Box is a professional, multi-standard load center independently developed for global project export.
Built for real-world compatibility, authentic certification, and stable operation, it serves residential, commercial, and industrial power distribution across North America, South America, Europe, Asia, and other major markets.
As a professional manufacturer of electrical distribution equipment, we focus on standard-compliant design, reliable quality, and cost efficiency to become your stable long-term supplier for cross-border electrical projects.
Product Overview
QOL Series is an upgraded terminal power distribution solution optimized for global market compatibility, installation efficiency, and cost performance.
Unlike generic “one-size-fits-all” products, we provide two targeted product lines to match real market demands:
North American Standard QOL Series
Complies with ANSI/UL standards, certified by UL & CSA, for high-end residential, commercial, and industrial projects in North America.
Universal Export QOL Series
Cost-effective version compliant with IEC / GB / CE requirements, suitable for bulk global export, foreign-funded projects, and general engineering.
Every unit is designed, manufactured, and certified to match its target region—no false compatibility, no misleading labeling.
Core Advantages
1. Authentic Regional Certification & Full Compliance
We only provide valid, verifiable certifications matching your market:
North America: UL & CSA certified, meets US and Canadian electrical codes.
Europe: CE certified, complies with LV Directive and EMC requirements.
China & Asia: 3C certified, compatible with 230/400V local grids.
Clear marking on nameplate, complete certification documents, and full support for customs clearance and grid access.
2. Region-Adapted Design for Worldwide Use
Voltage & Frequency Matching
NA version: 120/240V (1-phase), 208Y/120V (3-phase), 60Hz
EU / Asia version: 230/400V (3-phase), 50Hz
Flexible Installation
Surface-mounted or flush-mounted; 180° reversible top/bottom incoming line design.
Pre-loosened neutral bars and plug-in wiring structure reduce installation time.
Protection Grade
Standard IP30 for indoor use; optional IP54 for humid, dusty, or semi-outdoor environments.
3. Stable Quality & Reliable Electrical Performance
Housing: Corrosion-resistant galvanized steel / cold-rolled steel with eco-friendly coating.
Conductors: Integrated tinned copper bars with insulation, low contact resistance, high safety.
Structure: Modular DIN rail, separated neutral and ground bars, reserved knockout holes.
Breaking Capacity: 10kA / 15kA / 22kA (clearly marked on nameplate), with quick-break protection for equipment and personnel safety.
4. Cost-Effective & Customizable Solutions
North American Standard Line: High-end, matches mainstream North American breakers.
Universal Export Line: Economical, compatible with standard MCB, RCD, RCBO modules.
Customization: Circuit quantity, rated current, voltage, color, certification, and terminal layout can be customized to project requirements.
All customized products pass strict testing before delivery.
Product Specifications (Typical Export Models)
| Model |
Circuits |
Rated Current |
Rated Voltage / Frequency |
Installation |
Certification |
Application |
| QOL2F-NA |
2 |
100A |
120/240V, 60Hz (1-phase) |
Surface |
UL, |
North America, small residential |
| QOL12F-NA |
12 |
125A |
120/240V, 60Hz (1-phase) |
Flush |
UL |
North America, residential & light commercial |
| QOL20F-EU |
20 |
125A |
230/400V, 50Hz (3-phase) |
Flush |
CE |
Europe, commercial & light industry |
| QOL20F-CN |
20 |
125A |
230/400V, 50Hz |
Surface / Flush |
3C, CE |
China & Asia, residential & commercial |
| QOL20F-NA3 |
20 |
225A |
208Y/120V, 60Hz (3-phase) |
Surface |
UL |
North America, commercial & industrial |
Contact Us for Global Cooperation
We welcome distributors, contractors, importers, and project integrators to build long-term partnerships.
QOL Series Distribution Box delivers real certification, regional compatibility, reliable quality, and competitive cost—your core advantage in the global power distribution market.
For product catalog, quotation, or customized solutions:
Email: [energymeter@yiagroup.com] [powercapacitor@yiagroup.com]
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