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| Model Name | TOSAR1+RD4B | TOSAR1+RD4A | TOSAR1+RD4 | TOSAR1+BD6 |
| Product Type | Wi-Fi Type B RCD Auto Recloser | Wi-Fi Type A RCD Auto Recloser | Wi-Fi Type AC RCD Auto Recloser | Wi-Fi Type A RCBO Auto Recloser |
| Residual Current Type | AC + Pulsating DC + Smooth DC | AC + Pulsating DC | AC | AC + Pulsating DC |
| Rated Residual Current | 30/100/300mA | 30/100/300mA | 30/100/300mA | 10/30mA |
| Breaking Capacity | 10kA | 6kA | 6kA | 6kA |
| Function | Smart Auto Recloser, Leakage Protection | Smart Auto Recloser, Leakage Protection | Smart Auto Recloser, Leakage Protection | Smart Auto Recloser, Leakage Protection, Short Circuit Protection |
| Best For | EV Charging, Solar & Inverter Systems | Modern Residential & Commercial Circuits | Standard AC Electrical Circuits | All-in-One Leakage & Overcurrent Protection |
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TYPE A LEAKAGE PROTECTION: Detects sinusoidal AC and pulsating DC residual currents, making it more suitable than Type AC for circuits supplying modern electronic equipment and rectifier based loads.
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SINGLE AND THREE PHASE OPTIONS: Available in 2P and 4P configurations with rated currents from 16A to 63A and 30mA, 100mA or 300mA residual operating current options.
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SMART LIFE WIFI CONTROL: Enables remote ON and OFF operation through the Smart Life app using a direct 2.4GHz WiFi connection without an additional gateway.
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AUTOMATIC RECLOSING FUNCTION: Performs up to three automatic reclosing attempts at fixed 30 second intervals after the connected Type A RCCB trips.
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FOR MODERN ELECTRICAL LOADS: Suitable for residential, commercial and light industrial distribution circuits containing LED drivers, power supplies, appliances, pumps and electronic control equipment. Use an upstream MCB or fuse for overload and short circuit protection.
| Item | TOSAR1-RD4A |
| Product Type | Wi-Fi Auto Recloser RCD RCCB |
| Standard | IEC/EN 61008-1 |
| Leakage Type | Type a |
| Leakage current value | 30mA, 100mA, 300mA |
| Rated Voltage | 2p:230V~ 4p:400V~ |
| Rated Current | 40A, 63A |
| Reclosing Time Interval | 30s-30s-30s |
| Reclosing Cycle | 3 |
| Electrical Life | 10000 |
| Communication Protocol | 2.4GhZ Wi-Fi |
| APP | TUYA SMART LIFE |
| Smart Function | Remote Control |
| Manufacturer | Changyou Technology |
| Brand | Chayo |
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