| Item condition | New |
| Manufacture name | RCCB 3P+N 40A 30mA B |
| Brand | Hager |
| Categories |
Residual Current Devices (RCCB)
|
| Country of origin* | CN |
| * The actual country of origin may differ depending on the delivery batch. To confirm the specific country of origin, please contact your account manager. | |
| Harmonized System Code | 8536 3030 00 |
| ETIM | EC000003 |
| Voltage type | AC |
| Rated current | 40 A |
| Rated voltage | 400 V |
| Rated insulation voltage Ui | 400 V |
| Number of poles | 4 |
| Rated fault current | 0.03 A |
| Leakage current type | B |
| Selective protection | No |
| Short-circuit breaking capacity (Icw) | 10 kA |
| Surge current capacity | 5 kA |
| Short-time delayed tripping | No |
| Frequency | 50 Hz |
| Rated impulse withstand voltage Uimp | 4 kV |
| Packing level 1 | 3250611627852, 3250611627852 |
| Packing level 2 | 3250611627852 |
| Packing level 3 | 3250611627852 |
| Mounting method | DIN rail |
| Built-in depth | 70 mm |
| Pollution degree | 2 |
| Width in number of modular spacings | 4 |
| Explosion-proof | No |
| Degree of protection (IP) | IP20 |
| Connectable conductor cross section solid-core | 1-25 mm² |
| Connectable conductor cross section multi-wired | 1-16 mm² |
| With interlocking device | Yes |
| Ambient temperature during operating | -25-70 °C |
| Additional equipment possible | Yes |
Residual Current Circuit Breaker (RCCB) is designed as a protective safety device in electrical systems. It primarily detects leakage currents caused by ground faults and disconnects power to mitigate electrocution risks or fire hazards. **Core Specifications:** Rated for 40A load current with sensitivity calibrated at 30mA. Operates on a three-phase + neutral configuration to monitor all poles effectively, maintaining system integrity during fault conditions. **Functional Details:** Trips when differential current exceeds sensitivity threshold within milliseconds – ensures rapid interruption of circuit flow. Suited for domestic, commercial, and light industrial applications involving equipment prone to insulation failures or hazardous grounding issues. - Not compatible with DC circuits; works solely with AC systems. - Requires upstream overload/short-circuit protection; RCCB does not offer thermal/magnetic protection itself. - Suitable operating voltage range: 230V (phase-neutral), 400V (three-phase). - Should be tested periodically using built-in test function for reliable performance validation.