Primary Export Hardware & Protection Series
Direct factory configurations compatible with Tuya, Matter, and fully unlocked open-source ESP32 firmware stacks ready for private labeling.
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Inquire SpecsWhy Global Infrastructure is Transitioning to Open-Source Circuit Breakers
Commercial energy management is shifting away from proprietary consumer clouds toward zero-latency, local-first power telemetry.
Absolute Data Sovereignty & Zero Cloud Dependency
Proprietary consumer cloud ecosystems introduce single-point-of-failure vulnerabilities, mandatory firmware upgrades, and compliance risks under GDPR, HIPAA, and NIS2 directives. Corunsmart's ODM Tasmota breakers eliminate external API dependency by transmitting energy telemetry, breaker status, and overload alarms strictly over local network subnets via secure MQTT or native HTTP REST endpoints.
Sub-Millisecond Deterministic Latency
Public cloud roundtrips average 250ms to 1200ms depending on CDN routing. In industrial load shedding, automated generator transfer, and critical IT cooling setups, delay is unacceptable. Native Tasmota execution provides deterministic, rule-based edge logic running directly on our ESP32-C3/ESP32 microcontrollers, executing trip routines and shedding commands in under 15 milliseconds.
Native SCADA, BMS & Home Assistant Integration
Commercial integrators waste thousands of engineering hours building middleware to scrape consumer APIs. Corunsmart Tasmota breakers deliver automated out-of-the-box discovery for Home Assistant, openHAB, Node-RED, and industrial SCADA systems using standardized JSON payloads, customizable topic structures, and standard Modbus-over-IP bridging capabilities.
Industrial Grade Mechanical & Electrical Schematics
Built to withstand harsh industrial distribution boxes: true galvanic separation, advanced metering silicon, and zero-crossing magnetic latching mechanisms.
True L+N Double Cut Isolation
Unlike conventional smart switches that only break the Live (L) pole, Corunsmart's 1P+N, 2P, and 4P breakers feature simultaneous dual-path mechanical disconnections. Disconnecting Neutral (N) concurrently eliminates floating neutral hazard voltages, reverse feed shocks, and zero-potential ground loops during downstream electrical maintenance.
Class 1.0 Metering IC Integration
Equipped with dedicated high-speed energy metering frontends (Belling BL0942 / HLW8032) interfacing directly with the ESP32 via isolated SPI/UART. Provides Class 1.0 (IEC 62053-21) active energy measurement precision (<0.5% error) tracking active power, reactive power, RMS voltage, RMS current, line frequency, and power factor with millisecond transient capture.
Silver Alloy Latching Relay
Powered by custom magnetic bistable latching relays with AgSnO2 (silver tin oxide) contacts engineered to handle 63A continuous loads and up to 10kA short-circuit inrush peaks without contact weld. Employs hardware-level zero-crossing point synchronization to trigger contact close/open precisely at 0V, minimizing electric arc wear.
Flame Retardant UL94-V0 Housing
The exterior structure is precision injection molded in our Shenzhen facility using Bayer Makrolon flame-retardant polycarbonate. It complies with glow-wire flammability tests up to 960°C (IEC 60695-2-12) and provides an 8mm physical creepage distance between the high-voltage busbar and the low-voltage logic module.
Engineered to Surpass International Grid Standards
OEM distributors require zero import friction. Corunsmart products undergo rigorous testing according to major regulatory frameworks.
| Target Region | Applicable Electrical Code | Safety / Isolation Spec | EMC / RF Compliance | Factory Certification Status |
|---|---|---|---|---|
| European Union (EU) | EN 60898-1 / EN 60947-2 (Low Voltage Directive) | 6kV Impulse Withstand (1.2/50μs), 30mA RCD Earth Leakage | EN 301 489-1/-17, EN 300 328 (RED) | CE / RoHS Certified |
| North America (US/CA) | UL 489 Branch Circuit Protection / UL 1053 | 10kA Interrupting Capacity (AIC), Dual-pole trip | FCC Part 15 Subpart B & C (Class B Commercial) | ETL / UL In-Process |
| United Kingdom (UK) | BS EN 60898-1 (Wiring Regs 18th Edition BS 7671) | Arc Fault Detection Compatibility, Type A RCD | UK Radio Equipment Regulations 2017 | UKCA Compliant |
| Australia / New Zealand | AS/NZS 60898.1 / AS/NZS 3000 (Wiring Rules) | Bi-directional Isolation, Neutral Line Switched | ACMA RCM EESS Level 3 Electrical Equipment | RCM Audit Ready |
| Latin America & Global | IEC 60947-2 / NOM-003-SCFI (Mexico) / INMETRO (BR) | Tropicalized anti-humidity PCB Conformal Coating | IEC 61000-4-5 Surge Immunity Level 4 | Global Multi-Market |
Industrial & Commercial Application Scenarios
Engineered for extreme reliability where cloud disconnections cause critical downtime and revenue loss.
Telecom Off-Grid Base Stations (BTS)
Cellular towers running hybrid solar-diesel systems require localized automated power shedding during grid dips or battery voltage depletion. Our Tasmota breakers operate autonomous Tasmota Rules locally without 4G/5G WAN access, prioritizing radio channels over peripheral lighting and reporting battery load over WireGuard/IPsec MQTT channels.
Multi-Tenant Sub-Metering & Pre-Paid Billing
In co-working hubs, student dorms, and retail shopping plazas, commercial landlords use Corunsmart 1P and 3P breakers to eliminate recurring SaaS platform fees. The breakers post precise active kWh consumption to local database clusters (InfluxDB/Grafana), instantly isolating circuits if pre-paid energy credits expire.
EV Charger Load Balancing & Peak Shaving
Commercial parking decks with high EV charger density risk tripping utility transformers during peak periods. Interlinked via localized MQTT brokers, our smart breakers monitor entire facility service entrances and dynamically balance residential/fleet charging lines in sub-second increments to avoid demand penalty charges.
Direct OEM Factory Verification: Shenzhen Corunsmart
Shenzhen Corunsmart Co., Ltd. operates state-of-the-art precision assembly lines specifically configured for smart breaker and high-voltage IoT equipment.
Class 100 Dust-Free Assembly
Our 1,400 m² purification workshop in Bao'an District, Shenzhen, maintains strict Class 100 cleanroom air filtration standards. This completely prevents microscopic metallic particulate deposition on high-voltage contact surfaces and miniature optocoupler pathways, preventing dielectric breakdown.
Automated Calibration Rigs
Every circuit breaker passes through an automated 12-stage active load calibration bed. Voltage, amperage, and phase shift constants are calibrated against Fluke reference meters and permanently written to the ESP32 EEPROM/NVS flash partition, eliminating manual field calibration.
3750V AC Hi-Pot & Aging Chambers
Each production batch undergoes 100% automated High-Potential (Hi-Pot) dielectric testing at 3750V AC for 60 seconds to confirm creepage safety. Finished breakers then undergo continuous full-load 48-hour thermal chamber burn-in cycling at 55°C ambient temperature prior to packaging.
Engineering Roadmap: Beyond Basic Switching
How Corunsmart is advancing next-generation open-source microgrid hardware for distributors and utility engineers.
Native ESP32-C3 Migration
Complete phase-out of 8266 architectures. Standardizing on 32-bit RISC-V single-core ESP32-C3 with hardware cryptography (AES-128/256, RSA), expanded 4MB flash, and BLE 5.0 for zero-touch configuration via the Tasmota web UI.
Matter-over-Thread Dual-Stack
Combining native Tasmota MQTT local control with certified Matter-over-Thread communication. Commercial operators can simultaneously integrate with Apple Home/Google Home while streaming telemetry to industrial SCADA systems.
Sub-Cycle AI Arc Detection (AFDD)
Integrating edge machine-learning DSP routines inside the microcontroller to analyze current micro-spark harmonic distortions. Detects series and parallel electrical arcing in sub-cycle speeds (under 2.5ms) before fire ignition occurs.
Grid Frequency Response (FFR)
Autonomous dynamic frequency tracking algorithm. Breakers instantly shed designated heavy loads if line frequency drops below 49.8Hz (or 59.8Hz), qualifying enterprise facilities for utility demand-response rebate programs.
Frequently Asked Technical Questions (B2B FAQ)
Precise answers regarding flashing protocols, GPIO configurations, certification paths, and private-label manufacturing.
tele/%site%/%floor%/breaker1/), and locked custom GPIO template parameters directly during our high-speed automated gang-flashing SMT production stage.
Peripheral Smart Switches, Sockets & Sensors
Integrate a complete smart distribution system. Every peripheral unit works alongside our smart circuit breakers within unified ecosystems.
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Inquire SpecsInitiate Your OEM/ODM Tasmota Hardware Program
Speak directly with our senior electrical and embedded firmware engineering team in Shenzhen. We configure custom GPIO pinout maps, verify regional compliance, and deliver fully branded engineering samples within 14 business days.
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