EKR0 WiFi Smart RCBO | Leakage Protection & Tuya Remote

EKR0 WiFi is a smart RCBO that combines traditional overload, short-circuit and leakage protection with modern smart control and electricity metering. Type code communication method 2 provides WiFi (Tuya) + RS485 dual communication: users can remotely open/close the breaker, set timing schedules and monitor real-time electrical parameters through the Tuya APP or RS485 platform. Automatic and manual operation modes are available, with mechanical padlock for onsite safety. Rated 1P+N / 3P / 3P+N, 16–63A, residual current types A/AC, Icn 6kA/10kA, trip curves B/C/D. Suitable for smart building power management, industrial power monitoring and energy efficiency optimization.

● Product type: Smart RCBO (Residual Current Circuit Breaker with Overcurrent protection)
● Series / variant: EKR0 WiFi (type code communication method 2 = WiFi (Tuya) + RS485)
● Functions: Overload protection, short-circuit protection, leakage protection, over-temperature protection, multiple timing, remote control, electricity metering
● Operation modes: Automatic mode (remote control via Tuya APP / RS485); Manual mode (local operation only)
● No. of poles: 1P+N, 3P, 3P+N (with switched neutral)
● Rated currents (In): 16, 25, 32, 40, 50, 63A
● Rated sensitivity currents (IΔn): 10, 30, 100, 300mA
● Residual current type: A, AC
● Rated voltage (Ue): 230/240V (1P+N), 400/415V (3P, 3P+N)
● Rated short-circuit capacity (Icn): 6kA, 10kA
● Trip curve: B, C, D
● Standard: IEC/EN 61009-1
● Installation: Mounting on 35mm DIN rail; incoming method from top
● Protection degree: IP20

PDF
Product Profile

Product Profile

EKR0 Smart RCBO combines the functions of traditional circuit breakers with modern electronic technology to provide overload, short circuit, and leakage protection for circuits rated at 63A. It also supports remote control through the Tuya App or RS485 communication platform, allowing monitoring and adjustment of various electrical parameters. The EKR0 Smart RCBO has been widely used in smart building power management, industrial power monitoring, and energy efficiency optimization.

This product page is for the WiFi (Tuya) + RS485 communication variant of EKR0 (type code communication method: 2). Product photos show the WiFi-branded appearance with Tuya badge and antenna.

Traditional Protection

  • Overload protection
  • Short-circuit protection
  • Leakage protection (residual current)

Smart Capabilities

  • Remote control through Tuya APP or RS485 platform
  • WiFi (Tuya) + RS485 communication (type code 2)
  • Supported Apps: Tuya, Smart Life

Advanced Functions

  • Remote opening and closing control
  • Timing tasks (power on/off scheduling)
  • Real-time switch status monitoring
  • Electricity metering

Automatic / Manual Mode

  • Automatic mode allows remote control (Tuya APP, RS485)
  • Manual mode only supports local manual operation

Mechanical Padlock

When the mechanical lock is pulled out, the switch enters a locked state, preventing the switch from being turned on. To restore the device, press down the mechanical lock.

EKR0 WiFi structure callouts showing operation handle, mechanical lock, leakage test, network status light, RS485 joint and antenna joint

Structure labels: Operation Handle, Contact Position Indicator Window, Mechanical Lock, Leakage Test, Local Locking, Reset, Network Status Light, Alarm Light, Hardware Fault Light, RS485 Joint, Antenna Joint.

EKR0 WiFi RS485 joint A/B and antenna joint detail

Interface detail: RS485 Joint (A / B) and Antenna Joint.

Model Preparation Meaning

Model Preparation Meaning

EKR0 WiFi instruction of type code structure and meaning

Example type code structure: EK R0 - 2 2 - C 63 H - 1PN A 30

  • EK — Company code
  • R0 — Series code
  • 2 — Communication method (this product: 2 = WiFi (Tuya) + RS485)
    • 2: WiFi (Tuya) + RS485
    • 5: RS485
  • 2 — AC power supply with metering
  • C — Trip type: B, C, D
  • 63 — Rated currents (In): 16, 25, 32, 40, 50, 63A
  • H — Rated short-circuit capacity (Icn): Blank = 6kA, H = 10kA
  • 1PN — No. of poles: 1PN = 1P+N, 3P = 3P, 3PN = 3P+N
  • A — Residual current type: A, AC
  • 30 — Rated sensitivity currents (IΔn): 30, 100, 300mA
Technical Data

Technical Data

Standard IEC/EN 61009-1
Residual current type A, AC
No. of poles 1P+N, 3P, 3P+N (with switched neutral)
Standby power consumption < 5W
Status indicator LED
Rated voltage (Ue) 230/240V (1P+N), 400/415V (3P, 3P+N)
Rated frequency 50/60Hz
Rated currents (In) 16, 25, 32, 40, 50, 63A
Rated sensitivity currents (IΔn) 10, 30, 100, 300mA
Residual current off-time under (IΔn) ≤ 0.1s
Rated residual making and breaking capacity (IΔm) 500A (In ≤ 50A), 10In (In > 50A)
Rated short-circuit capacity (Icn) 6kA, 10kA
Energy limiting class 3
Rated impulse withstand voltage (Uimp) (1.2/50μs) 4kV
Dielectric test voltage 2kV (50/60Hz, 1 min.)
Trip curve B: (3-5) x In, C: (5-10) x In, D: (10-20) x In
Trip time ≤ 0.1s
Electrical life 4000 Cycles
Mechanical life 10000 Cycles
Communication method WiFi (Tuya), 2.4GHz; RS485, Baud rate: 2400/4800/9600 (default) — type code 2 = WiFi (Tuya) + RS485
Operational safety Mechanical padlock, ensure safety during onsite maintenance
Monitoring physical data Real-time voltage, Real-time current, Real-time power, Temperature, Switch state, Device operating status
Function description Overload protection, Short circuit protection, Leakage protection, Over-temperature protection, Multiple timing, Remote control, Electricity metering
Characteristic set up Over/under voltage action time, Over/under voltage value, Overcurrent value, Voltage imbalance value, Over power value, Phase loss value, Overtemperature value
Protection degree IP20
Ambient temperature -25℃ to +55℃ (Current capacity is significantly reduced at 70℃)
Storage temperature -25℃ to +70℃
Terminal connection type Cable/Pin-type busbar/Fork-type busbar
Max. conductor cross-sections for cable 25mm2
Altitude ≤2000m
Installation Mounting on 35mm DIN rail
Incoming method From top
Dimensions

Dimensions

EKR0 WiFi dimensions and wiring diagrams for 1P+N, 3P, 3P+N

Dimension drawings cover front views for 1P+N / 3P / 3P+N and side view, including overall width values 72mm / 90mm / 108mm, height 110mm, depth 50mm, and side outline height marks 36mm / 45mm.

Wiring diagrams show terminal wiring for 1P+N (L / N), 3P (A / B / C) and 3P+N (A / B / C / N).