The reset relay automatically re-engages the circuit breaker after a short interruption due to voltage drops or power failures. This ensures the system recovers quickly. Unlike earlier models (RR-31 and RR-22), the RR-40 and RR-50 models have been optimized for easier use. With these updates, users benefit from a faster, more reliable reset process, improving overall efficiency. We appreciate your continued support and encourage you to consider these enhanced models for your needs.
MIYAKI ELECTRIC MFG.CO.
Miyaki RR 40 RR 50

Manufacturer: MIYAKI ELECTRIC MFG.CO.,LTD.
Features
Specifications
| Model Specifications | |
| Form | RR-40 / RR-50 |
| Rated Voltage | AC100V (for RR-40), AC200V (for RR-50) |
| Rated Voltage Variation | 85% to 121% of rated voltage |
| Rated Frequency | 50Hz – 60Hz |
| Time Limit | 1.5 seconds – 3 seconds (for RR-40), 5.0 seconds (for RR-50) |
| Connection Capacity | AC250V 2.5A (for RR-40), 3.0A (for RR-50) |
| Rated Power Consumption (Operating Time) | 2VA (for RR-40), 3VA (for RR-50) |
| Life Expectancy of Electric Power | 100,000 times or more |
| Machine Life Expectancy | 50,000 times or more |
| Operating Ambient Temperature | -10°C to +55°C (excluding freezing conditions) |
| Withstand Voltage | AC1500V for 1 minute (excluding charging and non-charging components) |
| Weight | Approx. 290g (Body: 190g, Base: 100g) |











