Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
£405.54
The IMO B10R4063-30-B is a high-performance Residual Current Circuit Breaker (RCCB) designed to provide advanced protection against earth leakage faults in commercial, industrial and specialist electrical installations. As part of the trusted IMO B10R RCCB series, this device offers dependable protection against alternating, pulsating DC and smooth DC residual currents, making it suitable for modern electrical systems incorporating variable speed drives, EV charging equipment and other power electronic devices.
Manufactured in accordance with IEC/EN 61008-1 and IEC 62423, the B10R4063-30-B combines robust construction with reliable switching performance. Its compact DIN rail mounted design enables straightforward installation within distribution boards and control panels while delivering long-term protection for both personnel and electrical equipment.
Featuring a 63 A rated current, 30 mA residual operating current, Type B protection and a 3 Pole + Neutral (4 Pole) configuration, the IMO B10R4063-30-B is ideal for three-phase installations requiring comprehensive residual current detection.
Residual Current Circuit Breakers continuously monitor the balance between live conductors and neutral. If an earth leakage fault occurs, the RCCB disconnects the electrical supply rapidly, helping protect users from electric shock while reducing the risk of electrical fires caused by insulation failures.
The IMO B10R Type B series is specifically designed for installations where smooth DC residual currents may be present, making it suitable for applications involving power electronics, variable frequency drives, renewable energy systems and electric vehicle charging infrastructure.
Tick the specs you need, then view products that match.
| Voltage | 415 V | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Device Type | RCD | |
| Residual Current | 30 mA | |
| RCD Type | Type B | |
| Manufacturer | IMO Precision Controls | |
| Series | B10R | |
| Model | B10R4063-30-B | |
| Product type | Residual Current Circuit Breaker (RCCB) | |
| Rated current | 63 A | |
| Residual operating current | 30 mA | |
| Residual current type | Type B | |
| Operating voltage | 230/400 V AC | |
| Frequency | 50 / 60 Hz | |
| Pole configuration | 3 Pole + Neutral (4 Pole) | |
| Conditional short-circuit rating | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | TS35 DIN rail | |
| Terminal capacity | 1 to 25 mm² stranded, 35 mm² solid | |
| Dimensions (H × W × D) | approx. 81 × 73.5 × 78.5 mm | |
| Weight | approx. 0.41 kg | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
It provides residual current protection by disconnecting electrical circuits when earth leakage faults are detected, helping protect people and equipment.
The device has a 63 A rated current.
Type B RCCBs detect alternating, pulsating DC and smooth DC residual currents, making them suitable for installations containing power electronic equipment and EV charging systems.
The B10R4063-30-B is designed for 230/400 V AC electrical systems operating at 50/60 Hz.
The RCCB is designed for installation onto a standard TS35 DIN rail inside electrical distribution boards and control panels.
IMO B10R residual current circuit breakers are trusted by electricians, panel builders and industrial engineers for dependable earth leakage protection, reliable operation and compliance with recognised international standards.
We use cookies
We use essential cookies to run this site, your basket and checkout. With your permission we'd also like to use analytics and advertising cookies to understand how the site is used and to measure our adverts.