Filter and sort
What is the Tongou collection?
The Tongou collection brings together components for protection, switching, and energy control aimed at solar and residential/tertiary installations. It includes miniature circuit breakers (1P–4P, typical C curves), residual current devices (types AC/A 30 mA), Zigbee/WiFi smart breakers with measurement and remote disconnection, automatic transfer switches (ATS) 2P/4P for grid/generator switching, WiFi meters with clamp or shunt, and DC surge protection for photovoltaics. Its purpose is to ensure service continuity, the safety of people/equipment, and granular monitoring of consumption and generation.
Advantages and limitations
- Comprehensive portfolio for electrical panels for self-consumption: AC, DC, and control.
- Smart options (Zigbee/WiFi) integrable with Tuya: measurement, alarms, and remote disconnection per circuit.
- Ranges with curves, ratings, and poles for selectivity and coordination between protections.
- Specific DC protections for PV strings up to voltages of one thousand volts (model-dependent).
- Limitations: select the appropriate curve, rating, and Icu and verify compatibility with the panel and installation. Connectivity requires suitable gateways.
Applications
- Panels for AC Electrical Protections for homes and SMEs.
- DC photovoltaic protection in strings and combiner boxes.
- Backup switching with ATS in systems with generator or dual supply.
- Energy automation: measurement, load automation, and scenario-based control.
How to choose Tongou components
- Miniature circuit breakers: define voltage and number of poles (1P/2P/3P/4P), curve (C is standard), rating (A), and breaking capacity (Icu) according to available Ik.
- Residual current devices: choose type (AC/A) and sensitivity (30 mA for general use) and coordinate with the associated circuit breaker.
- DC PV surge protection: select Ucpv according to the cold Voc of the string and the topology (T1/T2 or T2) specified in the project.
- ATS: size nominal current and poles according to the scheme (2P single-phase / 4P three-phase) and required transfer time.
- Smart breakers: validate admissible load, measurement method (shunt/clamp), and protocol (Zigbee/WiFi) for your ecosystem.
- Complete with suitable Panel Accessories (busbars, terminals, DIN rail) and cabling.
Indicative specifications
| Scope | AC protection 230/400 V; DC PV protection up to ≈ 1000 V (depending on model) |
| Curves/ratings | Standard C curve; typical ranges 1–63 A in modular devices |
| Residual current devices | Type AC/A, typical sensitivities 30 mA; 2P/4P |
| Smart breakers | Zigbee/WiFi, energy measurement, remote control, Tuya integration |
| DC surge protection | Topologies T2 (and combined), replaceable cartridges |
| Installation | DIN rail mounting, typical panel IP rating IP20/≥IP65 in enclosure |
| Standards | IEC/EN 60898, 61008/61009, 61643-31 (depending on device) |
Best practices
- Study the Ik at the installation point to define the breaking capacity and maintain selectivity upstream/downstream.
- In PV, calculate Voc at minimum temperature and size DC surge protection with margin; use suitable cabling and fuses/breakers.
- Section critical loads in subpanels and use ATS for safe transfer between grid/generator.
- For smart devices, place the Zigbee/WiFi gateway with stable coverage and configure overconsumption/temperature alarms.
- Label circuits, maintain tightening pairs, and schedule periodic inspections.
Comparisons and related collections
If you need alternatives or complements, check Schneider and Mersen for fuses and panels, as well as our global categories: AC Protections, DC Protections, Electrical Panels, and Panel Accessories.
With Tongou you build safe panels ready for self-consumption: reliable modular protections, automation functions, and detailed measurement to reduce consumption, increase availability, and comply with regulations in solar and residential projects.
