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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 AC RESIDUAL CURRENT PROTECTION: Detects sinusoidal AC earth leakage currents and is intended for conventional AC circuits with basic resistive or inductive loads where Type AC protection is permitted.
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2P AND 4P OPTIONS: Available as 2 pole for single phase 1P+N systems and 4 pole for three phase 3P+N systems, with rated current and residual current options for different distribution requirements.
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WIFI REMOTE OPERATION: The TOSAR1 accessory connects to 2.4GHz WiFi and enables remote ON and OFF operation through the Smart Life app without an additional gateway.
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THREE AUTOMATIC RECLOSING ATTEMPTS: After an earth leakage trip, the accessory makes up to three reclosing attempts at 30 second intervals and stops automatic operation if the RCD continues to trip.
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RCCB SYSTEM COORDINATION: This set provides residual current protection but not overload or short circuit protection. Install a correctly rated upstream MCB or fuse and confirm that Type AC is permitted for the intended application.
| Item | TOSAR1-RD4 |
| Product Type | Wi-Fi Auto Recloser RCD RCCB |
| Standard | IEC/EN 61008-1 |
| Leakage Type | Type ac |
| 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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