Three Decades of TONGOU: From Traditional Manufacturing to Smart Energy Solutions
Three Decades of Tongou Circuit Breakers: From Traditional Manufacturing to Smart Energy Solutions
How Tongou evolved from mechanical breakers to full-stack smart energy protection — and why global OEM/ODM partners trust our factory.
Overview
For more than 30 years, Tongou has grown from a small electrical workshop into a global manufacturer of smart circuit protection devices. Our journey mirrors the industry’s shift from basic mechanical breakers to intelligent, cloud-connected systems capable of monitoring and safeguarding energy in real time.
Three Decades of Innovation
1990s — Foundation and Mechanical Protection
Traditional MCBs/MCCBs, precision molds, stable mechanisms, and IEC/EN compliance — our quality DNA was set.
2000s — Expansion, Automation, Global Certification
Automated lines, ISO9001, CE/TUV/CB, and professional testing labs; large-scale production for international markets.
2010s — Modularization & OEM/ODM Growth
From exporting products to co-developing solutions: private label, customized features, tailored accessories, and regional SKUs.
2020s — Smart Energy Era
Smart breakers, smart RCBOs, smart meters, gateways, and auto-reclosers integrated with apps and cloud dashboards.

Manufacturing Strength
- In-house manufacturing: mold design/CNC, injection molding, metal stamping, coil winding, PCB assembly.
- Automated lines: modular assembly for MCB/RCBO and smart devices with end-of-line functional testing.
- Testing & QA: mechanical endurance, temp-rise, short-circuit, insulation/hi-pot, surge tests; IEC60898, IEC60947-1, IEC61009-1 aligned.
- Supply chain & lead time: stable supplier network, rapid tooling, and flexible MOQs for tailored batches.
| Capability | Details | Value to Partner |
|---|---|---|
| Vertical Integration | Molds → plastics → metals → electronics → final assembly | Shorter lead time, tighter QC |
| Lab & Compliance | IEC/EN-aligned tests, documentation support | Global market readiness |
| Smart Modules | Wi-Fi/Zigbee/BLE/LTE, OV/UV/OC/EL logic | Future-proof product lines |
| Flexible OEM/ODM | Private label, custom firmware/app, packaging | Brand differentiation |
OEM/ODM Customization
We help distributors, system integrators, and brands build unique portfolios. From quick label programs to deep joint development, Tongou delivers.
Brand & Appearance
Private label, panel layout, housing color, laser marking, packaging artwork.
Private LabelLaser MarkPackagingElectrical & Ratings
Current ratings, trip curves, leakage classes, OV/UV thresholds, multi-region variants.
1–63 ATrip CurvesOV/UVSmart & Firmware
Wi-Fi/Zigbee/BLE/LTE modules, firmware functions, app features, cloud integration.
CloudAppAPIDocumentation & Certification
Datasheets, user manuals, test reports, compliance dossiers for target markets.
CE/CB/TUVIEC/ENDocsPackaging & Kitting
Custom SKUs, accessories, bundles for retail or project installs.
KitsSKUsRetailAfter-Sales & Training
Installer guides, training videos, remote diagnostics for smart lines.
TrainingSupportServiceSmart Energy Portfolio
Tongou provides end-to-end smart protection to make distribution boards visible, controllable, and safer.
- Smart Breakers & RCBO: remote control, scheduling, OV/UV/OC/EL, event logs.
- Smart Meters & Gateways: real-time energy, power quality, cloud dashboards.
- Auto-Reclosers: programmable retries for transient faults.

Where Our Partners Deploy Tongou
Residential & Villas
Smart boards with OV/UV and surge protection to safeguard premium appliances.
Smart HomeRetrofitCommercial Buildings
Cold storage, retail, access control — uptime is everything.
UptimeMonitoringPV/ESS & EV
Hybrid inverters, battery systems, EV chargers with smart protection layers.
PV/ESSEVWhy Choose Tongou
- Vertical manufacturing with audited QC
- Smart + traditional product depth
- Flexible OEM/ODM from label to firmware
- IEC/EN documentation and test support
- Global shipping and stable lead times














