EKA1 Smart Relay Switch | Wi-Fi / Local 63A
EKA1 Series Smart Protection Switch integrates over-voltage, under-voltage and over-current protection for working currents up to 63A. It is available with Wi-Fi (Tuya) communication or local operation. Wi-Fi models support remote on/off control and real-time monitoring of voltage, current and power via the Tuya app; thresholds can be set from the front panel or smartphone app. Selected models provide metering, timing control and different displays (LCD / double digital tube / single digital tube). Common platform: 1P+N (N pole on the left), 90V~265V, 50/60Hz, rated operating current 1–63A, standby ≤1.5W, IP20, lead-seal terminal protection. Order models: EKA1-TW-E3, EKA1-TW-E2S, EKA1-R-E2S, EKA1-R-V2. Suitable for home and industrial distribution boards.
● Product type: Smart Relay Switch / Smart Protection Switch
● Series: EKA1
● Models: EKA1-TW-E3, EKA1-TW-E2S, EKA1-R-E2S, EKA1-R-V2
● Versions: Wi-Fi (Tuya) models and local-operation models
● Standard: IEC 60947-5-1
● Poles: 1P+N, N pole on the left
● Rated operating current: 1–63A
● Operating voltage range: 90V~265V
● Rated frequency: 50/60Hz
● Standby power consumption: ≤ 1.5W
● Protection: over-voltage, under-voltage; over-current on selected models
● Metering: available on selected models
● Display options: LCD / double digital tube / single digital tube
● Protection degree: IP20
● Terminal block protection: Lead seal
● Ambient temperature: -25℃ to +70℃, Max. 95% humidity
Product Profile
Product Profile
EKA1 Series Smart Protection Switch combines multiple circuit protection functions, including over-voltage, under-voltage, and over-current. It is designed for current working environments up to 63A and is available in two versions: one with Wi-Fi communication and one without. The Wi-Fi version allows for remote control of the switch status via smartphone and enables real-time monitoring of electrical parameters such as voltage, current, and power using the Tuya app. Users can also set the thresholds of the main electrical parameters through the front panel of the device or the smartphone app.
EKA1 Series Smart Switch is widely used in both home and industrial settings due to its easy installation and user-friendly operation and can be wired to any existing DB or distribution board.
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Key Features
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Model lineup
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Model Preparation Meaning
Model Preparation Meaning
Model names are used directly as order references:
- EKA1 — Series code (Smart Relay Switch)
- TW — Wi-Fi (Tuya) communication version
- R — Local-operation version (no Wi-Fi remote platform)
- E3 — LCD display variant (full display data set)
- E2S — Double digital tube display variant
- V2 — Single digital tube / simplified local variant
Order models on this page
- EKA1-TW-E3
- EKA1-TW-E2S
- EKA1-R-E2S
- EKA1-R-V2
Common platform: 1P+N (N pole on the left), rated operating current 1–63A, operating voltage 90V~265V, 50/60Hz, IEC 60947-5-1.
Technical Data
Technical Data
| Item | EKA1-TW-E3 | EKA1-TW-E2S | EKA1-R-E2S | EKA1-R-V2 |
|---|---|---|---|---|
| Standard | IEC 60947-5-1 | |||
| Overvoltage protection | ✓ | ✓ | ✓ | ✓ |
| Undervoltage protection | ✓ | ✓ | ✓ | ✓ |
| Overcurrent protection | ✓ | ✓ | ✓ | ✗ |
| Metering function | ✓ | ✓ | ✓ | ✗ |
| Screen off | No operation for 60 seconds | ✗ | ✗ | ✗ |
| Display type | LCD | Double digital tube | Double digital tube | Single digital tube |
| Display data — real-time voltage | ✓ | ✓ | ✓ | ✓ |
| Display data — real-time current | ✓ | ✓ | ✓ | ✗ |
| Display data — real-time power | ✓ | ✓ | ✓ | ✗ |
| Display data — switch state | ✓ | ✗ | ✗ | ✗ |
| Display data — network status | ✓ | ✓ | ✗ | ✗ |
| Power button | Yes | |||
| Power status indicator | Yes | |||
| Network button | Up button (short press for 3 seconds) | ✗ | ✗ | |
| Communication method | Wi-Fi (Tuya) | Local operation | ||
| Control type | Remote, Manual | Manual | ||
| Poles | 1P+N, N pole on the left | |||
| Standby power consumption | ≤ 1.5W | |||
| Operating voltage range | 90V~265V | |||
| Rated frequency | 50/60Hz | |||
| Rated operating current | 1–63A | |||
| Voltage and current measuring accuracy | Class 1.0 | Class 2.0 | ||
| Energy measurement accuracy | Class 2.0 | Class 2.0 | ||
| Protection degree | IP20 | |||
| Ambient temperature | -25℃ to +70℃, Max. 95% humidity | |||
| Terminal block protection | Lead seal | |||
| Over-voltage range | 230V~300V (default: 280V) | |||
| Over-voltage recovery range | 225V~295V (default: 275V) | |||
| Over-voltage tripping time | 5s~600s (default: 60s) | |||
| Over-voltage recovery delay time | 5s~600s (default: 60s) | |||
| Under-voltage range | 100V~210V (default: 115V) | |||
| Under-voltage recovery range | 100V~215V (default: 120V) | |||
| Under-voltage tripping time | 5s~600s (default: 60s) | |||
| Under-voltage recovery delay time | 5s~600s (default: 60s) | |||
| Over-current adjustable range | 1A–63A (default: 63A) | ✗ | ||
| Over-current tripping time | 5s~600s (default: 60s) | ✗ | ||
| Over-current recovery delay time | 5s~600s (default: 60s) | ✗ | ||
Dimensions
Dimensions
Dimension drawings (mm): EKA1-TW-E3; EKA1-R-E2S / EKA1-TW-E2S (same outline); EKA1-R-V2; plus side view reference. Typical module outline about 36mm width × 85mm height; side depth reference 50 / 44.54 / 65.5mm as marked on the drawing.
