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B10R2040-30-A IMO RCD 10KA, 30mA 1 Pole + N, 40 Amp, 230VAC
£48.08
Why Choose the IMO B10R2040-30-A Type A Residual Current Device?
The IMO B10R2040-30-A is a dependable Type A residual current circuit breaker (RCD/RCCB) designed to protect single-phase electrical installations against earth leakage faults. Manufactured by IMO Precision Controls, it forms part of the established B10R series and is suitable for commercial distribution systems, industrial control panels, machinery and automation equipment.
The B10R2040-30-A continuously compares the current flowing through the live conductor with the current returning through the neutral conductor. When an imbalance reaches its rated residual operating threshold, the device rapidly disconnects the electrical supply, helping reduce the risks associated with electric shock, damaged insulation and earth leakage faults.
With a rated current of 40 A, a sensitive 30 mA residual operating current and a 1 Pole + Neutral configuration, this RCCB is designed for 230 V AC installations. Its Type A characteristic enables it to detect both sinusoidal AC and pulsating DC residual currents produced by many modern electrical and electronic loads.
Key Advantages
- Reliable Type A residual current protection for modern electrical installations.
- 40 A rated current suitable for higher-load single-phase circuits.
- 30 mA residual operating current for enhanced protection against earth leakage.
- Detects both sinusoidal AC and pulsating DC residual currents.
- 10 kA rated conditional short-circuit current.
- Compact DIN rail format for straightforward panel installation.
Key Features
- IMO B10R residual current circuit breaker series.
- 40 A rated operational current.
- 30 mA rated residual operating current.
- Type A residual current characteristic.
- 1 Pole + Neutral (2-pole) configuration.
- 230 V AC rated operating voltage.
- Integrated test facility for routine functional checks.
- DIN rail mounting to EN 60715.
Type A Earth Leakage Protection for Modern Loads
Type A residual current devices are designed to respond to both alternating sinusoidal residual currents and pulsating DC residual currents. This makes the IMO B10R2040-30-A suitable for circuits supplying equipment containing electronic components, rectifiers, variable-speed controls and switch-mode power supplies.
The 30 mA sensitivity provides enhanced residual current protection for applicable circuits. As an RCCB, the B10R2040-30-A does not independently protect against overloads or short circuits and must therefore be installed alongside a suitably rated miniature circuit breaker or fuse.
Typical Applications
- Commercial electrical distribution boards.
- Industrial control panels and switchboards.
- Machinery and automation equipment.
- Circuits supplying electronic or rectifier-based loads.
- OEM electrical systems.
- Single-phase circuits requiring 30 mA Type A protection.
Technical Specifications
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| Voltage | 230 V | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | RCD | |
| Residual Current | 30 mA | |
| Manufacturer | IMO Precision Controls | |
| Series | B10R | |
| Model | B10R2040-30-A | |
| Alternative SKU | B10R204030A | |
| Product type | Residual current circuit breaker (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 | 230 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated conditional short-circuit current | 10 kA | |
| Maximum switching time | 100 ms at rated residual current | |
| Terminal capacity | 35 mm² solid / 25 mm² stranded conductor | |
| Mounting type | DIN rail EN 60715 | |
| Protection rating | IP20 | |
| Operating temperature | -25°C to +55°C | |
| Standard | IEC 61008-1 | |
| Dimensions (H × W × D) | approx. 81 × 35.1 × 70.5 mm | |
| Barcode | 5056207400148 | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the IMO B10R2040-30-A used for?
The B10R2040-30-A protects single-phase electrical installations by disconnecting the supply when an earth leakage or residual current fault is detected.
What does Type A mean?
A Type A RCD detects both sinusoidal alternating residual currents and pulsating DC residual currents generated by many modern electrical and electronic devices.
What is the rated current of the B10R2040-30-A?
The device has a rated operational current of 40 A.
What residual current sensitivity does it provide?
The IMO B10R2040-30-A has a rated residual operating current of 30 mA.
Does this RCCB provide overload protection?
No. It provides residual current protection only and must be used with an appropriately rated circuit breaker or fuse for overload and short-circuit protection.
Trusted Electrical Protection from IMO
IMO B10R residual current circuit breakers are used by electrical contractors, panel builders and industrial engineers to provide dependable earth leakage protection in commercial and industrial electrical systems.
