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The IMO B10R2040-30-A-110 is a high-performance Type A Residual Current Device (RCD/RCCB) designed to provide reliable protection against earth leakage faults in 110 V AC electrical installations. Manufactured by IMO Precision Controls, it forms part of the trusted B10R RCCB series, delivering dependable protection for construction sites, temporary power systems, industrial equipment and commercial electrical installations.
The device continuously monitors the balance between live and neutral conductors. If a residual current fault exceeds the rated operating threshold, the RCD disconnects the electrical supply, helping reduce the risk of electric shock and protecting equipment from earth leakage faults. Its Type A characteristic enables detection of both alternating residual currents and pulsating DC residual currents generated by modern electronic equipment.
With a 40 A rated current, 30 mA residual operating current, 1 Pole + Neutral configuration and 110 V AC operating voltage, the B10R2040-30-A-110 provides dependable protection while allowing straightforward installation on standard DIN rail systems.
Residual current devices monitor the difference between outgoing and returning current. If current leaks to earth because of damaged insulation or equipment faults, the device disconnects the supply within milliseconds to improve electrical safety and reduce equipment damage.
The Type A characteristic enables the IMO B10R2040-30-A-110 to detect both sinusoidal AC and pulsating DC residual currents, making it suitable for modern electronic equipment, industrial machinery and site power distribution. As with all RCCBs, suitable overcurrent protection should be provided separately.
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| Phase | Single Phase | |
|---|---|---|
| Voltage | 110 V | |
| Poles | 1-pole + N | |
| Device Type | RCD | |
| Residual Current | 30 mA | |
| Manufacturer | IMO Precision Controls | |
| Series | B10R | |
| Model | B10R2040-30-A-110 | |
| Alternative SKU | B10R204030A110 | |
| Product type | Residual Current Device (RCD/RCCB) | |
| Rated current | 40 A | |
| Rated residual operating current | 30 mA | |
| Residual current characteristic | Type A | |
| Pole configuration | 1 Pole + Neutral (2 Pole) | |
| Rated voltage | 110 V AC | |
| Frequency | 50 / 60 Hz | |
| Conditional short-circuit rating | 10 kA | |
| Mounting type | DIN rail | |
| Protection rating | IP20 | |
| Standard | IEC 61008-1 | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
It provides residual current protection by disconnecting 110 V electrical circuits when earth leakage faults are detected.
Type A RCDs detect both alternating residual currents and pulsating DC residual currents generated by many modern electronic devices.
The IMO B10R2040-30-A-110 has a rated operational current of 40 A.
The device has a 30 mA residual operating current for enhanced personnel protection.
No. This device provides residual current protection only and should be used with a suitably rated miniature circuit breaker or fuse for overload and short-circuit protection.
IMO B10R residual current devices are trusted by electricians, panel builders and industrial engineers to provide dependable earth leakage protection in demanding commercial and industrial applications.
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