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.
£48.55
The IMO B10R4063-500 is a robust and reliable Residual Current Circuit Breaker (RCCB) designed to protect three-phase electrical installations against earth leakage and residual current faults. As part of the dependable IMO B10R circuit protection range, it is suitable for commercial and industrial distribution systems where reliable electrical isolation and leakage-current protection are required.
This RCCB continuously monitors the current flowing through the live and neutral conductors. When an imbalance exceeds the specified threshold, the device rapidly disconnects the circuit, helping reduce the risk of electrical fires, equipment damage and hazards caused by insulation failure.
With a 63 A rated current, 500 mA residual operating current and a 3 Pole + Neutral configuration, the IMO B10R4063-500 is suitable for three-phase circuits, machinery supplies and distribution boards. Its compact modular construction enables straightforward mounting on a standard DIN rail inside electrical panels and enclosures.
Residual current circuit breakers monitor the electrical current passing through a circuit and identify imbalances caused by leakage to earth. When the leakage reaches the RCCB operating threshold, the device disconnects the supply to help limit damage to wiring, machinery and connected electrical equipment.
The 500 mA sensitivity of the IMO B10R4063-500 makes it particularly suitable for equipment protection, upstream distribution and applications where protection against leakage-related fire risks is required. Appropriate supplementary overcurrent protection should be selected separately because an RCCB does not replace a circuit breaker or fuse.
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 | 500 mA | |
| Manufacturer | IMO Precision Controls | |
| Series | B10R | |
| Model | B10R4063-500 | |
| Product type | Residual Current Circuit Breaker (RCCB) | |
| Rated current | 63 A | |
| Rated residual operating current | 500 mA | |
| Rated voltage | 230/400 V AC | |
| Rated frequency | 50/60 Hz | |
| Pole configuration | 3 Pole + Neutral (4 Pole) | |
| Rated conditional short-circuit current | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail, EN 60715 | |
| Terminal capacity | up to 35 mm² solid or 25 mm² stranded conductor | |
| Fastening torque | 2.0 Nm | |
| Operating temperature | -25°C to +55°C | |
| Electrical lifetime | more than 4,000 cycles | |
| Dimensions (H × W × D) | approx. 81 × 70.5 × 49.7 mm | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
It is used to detect earth leakage and residual current faults in three-phase electrical systems, helping protect wiring, machinery and connected equipment.
The IMO B10R4063-500 has a rated current of 63 A.
The device has a rated residual operating current of 500 mA, making it suitable for equipment, distribution and leakage-related fire protection applications.
It has a 3 Pole + Neutral configuration, commonly described as a four-pole RCCB for three-phase electrical systems.
No. An RCCB detects residual current leakage but does not provide overload or short-circuit protection, so a suitable circuit breaker or fuse must be installed separately.
IMO residual current circuit breakers provide dependable earth leakage protection for electrical contractors, panel builders, machine manufacturers and industrial engineers working with modern three-phase distribution systems.
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.