MCB / Smart Wi-Fi MCB
18mm Wi-Fi Smart Circuit Breaker
The most compact smart circuit breaker in TPKELE's IoT lineup. At just 18mm wide, it fits standard DIN rails while delivering full remote control, real-time voltage/current/power monitoring, and programmable protection settings via the Tuya Smart app. Ideal for residential smart home retrofits where space is limited.
Key Features
- Dimensions: 18×84×68mm
- Rated Voltage: AC 220V / 110V, 50/60Hz
- Current Setting: 1–63A (app configurable)
- WiFi Control: Tuya Smart ecosystem
- Real-time Monitoring: Voltage, Current, Power, Energy (kWh)
Need full datasheet, drawing or certificates for tender?
Typical Applications
Technical Specifications
| Poles | 1P / 2P / 3P / 4P |
|---|---|
| Rated Current | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Rated Voltage | 120V / 230V / 400V AC |
| Breaking Capacity | 4.5 kA, 6 kA, 10 kA |
| Trip Curve | B, C, D |
| Housing Material | Flame-Retardant Thermoplastic |
| Mechanical Life | 20,000 operations |
| Electrical Life | 10,000 operations |
| Mounting | DIN-rail 35mm |
| Conformity | CE marking, RoHS compliant |
| Standard | IEC 60898-1 |
| Contact Material | High-Conductivity Copper Alloy |
Certifications & Standards
Verified to international standards for global tenders
OEM / ODM Available
Private label this MCB for your brand
Logo, color housing, packaging and certificate documentation tailored to distributor and brand-owner programs.
- Custom logo printing on housing and packaging
- Color housing variants for product line differentiation
- Private-label catalogs and datasheet customization
- Project-spec drawings, single-line diagrams and labels
- Container-load supply with export documentation
- Sample preparation within 5–10 working days
Frequently Asked Questions
What is the difference between AC MCB and DC MCB?
AC MCBs are designed for alternating current circuits — the AC zero-crossing helps extinguish arcs naturally. DC MCBs handle direct current with no zero-crossing, requiring specialized arc-quenching contact structures and magnets. Solar PV strings, batteries and DC bus systems must use DC MCBs rated for the system Uoc.
What system voltages do your DC MCBs cover?
Standard DC MCBs cover up to 1000V DC; for utility-scale PV we offer up to 1500V DC versions using 3P / 4P series configuration.
Which curve should I choose — B, C or D?
B curve (3–5 In) for resistive loads, C curve (5–10 In) for general-purpose distribution and mixed loads, D curve (10–20 In) for inductive loads with high inrush currents like motors and transformers.
Do you support OEM branding for MCBs?
Yes — logo printing, custom housing color, dedicated packaging and private-label catalogs are supported for distributor and brand-owner programs.
Do your MCBs carry CE certification?
Yes, TPKELE MCBs are CE & RoHS compliant. AC models are tested per IEC 60898-1; DC models per IEC 60947-2. Test reports are available for project tenders and customs documentation.
