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  • New item   Modular smart circuit breaker | 4P | 63A | 400V | 6kA | DIN | MCB | Wi-Fi | TUYA | Tuya03

    Modular smart circuit breaker | 4P | 63A | 400V | 6kA | DIN | MCB | Wi-Fi | TUYA | Tuya03

    Code: Tuya03
    Inquire about this item
    Price 96.00 € VAT incl.
    ( 79.34 € VAT excl. )

    TUYA Tuya03 is a modular smart circuit breaker 4P 63 A, C curve, 6 kA, 400 V, for DIN rail. It protects a three-phase circuit against overload and short circuit and lets you switch it on or off via the Tuya / Smart Life app.

  • Product description

    Modular smart circuit breaker | 4P | 63A | 400V | 6kA | DIN | MCB | Wi-Fi | TUYA | Tuya03

    TUYA Tuya03 is a modular smart 4-pole circuit breaker (MCB) 63 A, C curve, 6 kA breaking capacity, for DIN rail mounting. It protects a three-phase circuit against overload and short circuit, and lets you switch it on and off remotely via Wi-Fi and the Tuya app.

    Key idea:
    Standard panel protection and remote control in one module: the circuit can be switched off by phone or on a schedule without going to the panel.
    Poles
    4P
    Rated current
    63 A
    Curve
    C
    Breaking capacity
    6 kA

    How it works

    Like a regular circuit breaker, it disconnects the circuit in case of overload or short circuit.

    A built-in Wi-Fi module connects the breaker to the Tuya / Smart Life app.

    In the app the circuit is switched on and off remotely, and schedules and scenes are set.

    Why choose Tuya03?
    One module provides both protection and control – no separate contactor or smart relay is needed in the panel to control a three-phase load.

    Technical specifications

    Product type Smart Wi-Fi modular circuit breaker (MCB, 4P)
    Manufacturer / model TUYA Tuya03
    Type circuit breaker (MCB)
    Number of poles 4P
    Rated current 63 A
    Rated voltage, Un 400 V
    Tripping curve C
    Breaking capacity 6 kA
    Frequency 50/60 Hz
    Mounting DIN rail
    Connectivity Wi-Fi
    App Tuya, Smart Life

    Main functions

    • Overload protection – C curve.
    • Short-circuit protection – 6 kA breaking capacity.
    • Remote control – on and off via Tuya.
    • Schedules – automatic circuit control.
    • Scenes – together with other Tuya devices.
    • DIN mounting – standard distribution panel.

    Where is it used?

    • Three-phase incoming and distribution circuits
    • Heating and boiler circuits
    • Heat pumps and boiler rooms
    • Workshops and farm buildings
    • Commercial premises
    • Rental properties

    Use by need

    For homeowners.
    Switching off a three-phase circuit by phone when away.
    For electricians.
    Protection and remote control in one DIN module.
    For facility managers.
    Scheduled circuit control without a site visit.

    Practical use

    If three-phase heating in a country house should switch on a few hours before arrival, Tuya03 is installed in the heating circuit and switched on in advance via the app.

    Pros

    • Protection and control in one
    • 4 poles, 63 A
    • 6 kA breaking capacity
    • Control via Tuya / Smart Life
    • Standard DIN mounting

    Cons / limitations

    • Wi-Fi signal needed in the panel
    • A metal enclosure may weaken the signal
    • Installation by a qualified electrician only
    • No residual current protection (not an RCD)

    Safety and installation notes

    • Install only with the power switched off
    • Installation by a qualified electrician
    • Select the breaker according to cable cross-section and load
    • Before working on the circuit, isolate it physically, not just via the app
    • Use a separate RCD for residual current protection

    Quick selection guide

    4P
    63 A
    400 V
    C
    6 kA
    Wi-Fi
    Suitable when you need:
    • control a three-phase circuit remotely
    • protect a circuit and automate it
    • control heating on a schedule
    Check before use:
    • the load current and cable cross-section
    • the required tripping curve
    • the Wi-Fi signal in the distribution panel
    • space on the DIN rail
    Important reminder: Before working on an electrical installation, always isolate the circuit physically and verify the absence of voltage – remote switch-off is not safe isolation for work.

    FAQ

    How many poles?
    4P.
    What is the rated current?
    63 A.
    What is the tripping curve?
    C.
    What is the breaking capacity?
    6 kA.
    Which app does it use?
    Tuya or Smart Life.
    Does it protect against residual current?
    No, a separate RCD is required for that.

    Modular smart circuit breaker | 4P | 63A | 400V | 6kA | DIN | MCB | Wi-Fi | TUYA | Tuya03

    TUYA Tuya03 is a smart Wi-Fi circuit breaker 4P, 63 A, C, 6 kA, 400 V for DIN rail: overload and short-circuit protection plus remote control via Tuya.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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