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B10R40100-30-A IMO RCD 10KA, 30mA 3 Pole + N, 100 Amp, 415VAC
£81.02
Why Choose the IMO B10R40100-30-A Type A Residual Current Circuit Breaker?
The IMO B10R40100-30-A is a dependable Type A Residual Current Circuit Breaker (RCCB) designed to protect commercial and industrial electrical installations against earth fault and leakage currents. Manufactured by IMO Precision Controls, this four-pole RCCB automatically disconnects the electrical supply when residual current exceeds its operating threshold, helping reduce the risk of electric shock, fire and equipment damage.
Unlike a Type AC device, the B10R40100-30-A can detect both sinusoidal alternating residual currents and pulsating DC residual currents. This makes it suitable for modern electrical systems containing electronic equipment, rectifiers, variable-speed controls and switch-mode power supplies. Its robust construction and DIN rail format support straightforward installation within distribution boards and control panels.
With a 100 A rated current, 30 mA residual operating current, four-pole configuration and 400 V AC rated voltage, the IMO B10R40100-30-A provides additional personal protection in three-phase plus neutral installations. The device is manufactured in accordance with IEC 61008-1 and has a rated conditional short-circuit current of 10 kA.
Key Advantages
- Reliable four-pole residual current protection for three-phase plus neutral systems.
- 100 A rated current for high-capacity commercial and industrial circuits.
- 30 mA residual current sensitivity for additional protection against electric shock.
- Type A detection for alternating and pulsating DC residual currents.
- 10 kA rated conditional short-circuit current.
- Compact DIN rail mounting for straightforward panel installation.
Key Features
- IMO B10R RCCB series.
- 100 A rated current.
- 30 mA rated residual operating current (IΔn).
- Type A residual current characteristic.
- Four-pole configuration for three-phase plus neutral circuits.
- 400 V AC rated voltage.
- 50/60 Hz rated frequency.
- 10 kA conditional short-circuit rating.
- DIN rail mounting to EN 60715.
- Manufactured in accordance with IEC 61008-1.
Type A Earth Leakage Protection for Modern Electrical Systems
Type A RCCBs detect conventional sinusoidal AC residual currents as well as pulsating DC residual currents that may be produced by electronic devices. This broader detection capability makes the IMO B10R40100-30-A suitable for installations containing power electronics, electronically controlled appliances and equipment with rectifying circuits.
The 30 mA operating sensitivity provides additional protection against electric shock, while the four-pole arrangement simultaneously monitors all live conductors in a three-phase plus neutral circuit. The RCCB must be used with suitable overcurrent protection because it does not provide overload or short-circuit protection on its own.
Typical Applications
- Three-phase commercial distribution boards.
- Industrial control panels and machinery supplies.
- Circuits containing electronic control equipment.
- Variable-speed drive and rectifier-fed installations.
- Building services and electrical infrastructure.
- Power distribution systems requiring 30 mA Type A protection.
Technical Specifications
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| Voltage | 415 V | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Device Type | RCD | |
| Residual Current | 30 mA | |
| Manufacturer | IMO Precision Controls | |
| Series | B10R | |
| Model | B10R40100-30-A | |
| Product type | Residual Current Circuit Breaker (RCCB) | |
| Rated current | 100 A | |
| Rated residual operating current | 30 mA | |
| Residual current characteristic | Type A | |
| Rated voltage | 400 V AC | |
| Rated frequency | 50/60 Hz | |
| Pole configuration | 3 pole + neutral (4 pole) | |
| Maximum switching time at IΔn | 100 ms | |
| Residual tripping current range | 0.5 IΔn to 1 IΔn | |
| Rated conditional short-circuit current | 10 kA | |
| Electrical lifetime | More than 4,000 cycles | |
| Terminal capacity | 35 mm² solid / 25 mm² stranded | |
| Fastening torque | 2.0 Nm | |
| Protection rating | IP20 | |
| Mounting type | DIN rail EN 60715 | |
| Operating temperature | -25°C to +55°C | |
| Dimensions (H × W × D) | approx. 91 × 70.5 × 49.7 mm | |
| Compliance standard | IEC 61008-1 | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
Frequently Asked Questions
What is the IMO B10R40100-30-A used for?
It protects three-phase plus neutral electrical circuits against earth leakage currents by disconnecting the supply when the detected residual current reaches the device’s operating threshold.
What does Type A mean on this RCCB?
Type A means the RCCB can detect sinusoidal alternating residual currents and pulsating DC residual currents produced by many modern electronic devices.
What is the rated current of the B10R40100-30-A?
The IMO B10R40100-30-A has a rated current of 100 A.
What residual current sensitivity does this model provide?
This RCCB has a rated residual operating current of 30 mA, making it suitable for applications requiring additional personal protection.
Does this RCCB provide overload protection?
No. The B10R40100-30-A provides residual current protection and must be installed with an appropriately rated fuse or circuit breaker for overload and short-circuit protection.
Trusted Electrical Protection from IMO
IMO B10R residual current circuit breakers provide electrical engineers, contractors and panel builders with reliable earth leakage protection, robust DIN rail installation and compliance with recognised international electrical safety standards.
