B type residual current circuit breakers
Home Products RCCB MCB RCBOType B RCCB B type residual current circuit breakers
B type residual current circuit breakers
B type residual current circuit breaker (earth leakage protection)
The B type residual current circuit breakers provide:
Protection in the event of a continuous fault current on three-phase networks generated by:
- Controllers and variable speed drives
- Battery chargers and inverters
- Backed-up power supplies
They include and also guarantee protection against fault currents:
- Sinusoidal AC residual currents (AC type)
- Pulsed DC residual currents (A type)
Applications requiring 'B' types include:
EV & PV installations
Frequency converters
UPS installations
High-frequency power converters
Building site power supply cabinets
| According to IEC 60947 | ||
| Insulation voltage (Ui) | 400 V | |
| Pollution degree | 3 | |
| Rated impulse withstand voltage (Uimp) | 4 kV | |
| Making and breaking capacity (Im/IDm) | 25/40 A | 500 A |
| 63/80 A | 800 A | |
| 100 A | 1000 A | |
| Surge current withstand (8/20 μs) without tripping | No selective | 250 Â |
| Selective | 3 k | |
| Conditional rated short circuit current (Inc/IDc) | 25/40 A with FU 80 A gG fuse 63 A with FU 100 A gG fuse | 10,000 A 10,000 A |
| 80/100 A with FU 100 A gG fuse | 10,000 A | |
| Degree of protection | Device only | IP20 |
| IP40 with screw shield | ||
| Device in modular enclosure | IP40 | |
| Insulation classe II | ||
| Endurance (O-C) | Electrical | > 2 000 cycles |
| Mechanical | > 5 000 cycles | |
| Operating temperature | -25°C to 40°C | |
| Storage temperature | -40°C to 85°C | |
Model Selection:
| Rated Current | Pole | Model | |||
| (A) | 30mA | 100mA | 300mA | 500mA | |
| 25 | 2 | GDR22530B | GDR225100B | GDR225300B | GDR225500B |
| 40 | 2 | GDR24030B | GDR240100B | GDR240300B | GDR240500B |
| 63 | 2 | GDR26330B | GDR263100B | GDR263300B | GDR263500B |
| 25 | 4 | GDR42530B | GDR425100B | GDR425300B | GDR425500B |
| 40 | 4 | GDR44030B | GDR440100B | GDR440300B | GDR440500B |
| 63 | 4 | GDR46330B | GDR463100B | GDR463300B | GDR463500B |
Protection for EV charging | EV B type earth leakage protection | B type RCD/RCCB/ELCB for EV | EV charging RCCB
