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Residual Current Breaker with Over-Current protection (RCBO) is a critical safety device combining the functions of a Residual Current Device (RCD) and a Mini Circuit Breaker (MCB). It protects both personnel and equipment by detecting leakage currents, overloads, and short circuits.
The RCBO monitors current flow balance between live and neutral wires. In the event of an imbalance caused by leakage (e.g., faulty appliance or ground fault), the device trips instantly to prevent electric shock and potential fire hazards.
| Model Series | Pole Configuration | Rated Current | Rated Voltage |
|---|---|---|---|
| ESR100-63 | 2P / 4P | Up to 63A | 230/400V AC |
| ESRO7-40 | 1P+N | 6A - 40A | 500V AC |
| ESRO5-40 | 1P+N | Max 40A | 230V AC |
| ESRO3-40 | 1P+N | 6-40A | 230/400V AC |
| ESRO2-63 | 2P / 4P / 3P+N | Up to 63A | 230/400V AC |
| ESRO1-50 | 1P+N | Tripping B, C, D | 240V AC |
| Test Type | Test Current | Initial State | Time Limit | Expected Result |
|---|---|---|---|---|
| A (B.C.D) | 1.13In | Cold | t ≤ 1h | No Tripping |
| B (B.C.D) | 1.45In | After Test A | t ≤ 1h | Tripping |
| C (B.C.D) | 2.55In | Cold | 1s < t < 60s | Tripping |
| D (Curve B) | 3In | Cold | t ≤ 0.1s | No Tripping |
| E (Curve B) | 5In | Cold | t ≤ 0.1s | Tripping |












SDEV Charger