Compact electrical protection for domestic circuits that combines earth-leakage and overcurrent safety in a narrow form. Peace of mind for installers and homeowners who need reliable protection without losing precious consumer-unit space. Does the combination of Type A 30mA sensitivity and two-pole switching match modern wiring needs with limited space? DIHOOL RCBO Circuit Breaker
⚡ At a Glance
- • Protection Type: Type A 30mA earth-leakage with pulsating DC sensitivity, plus overload and short-circuit protection
- • Best for: Small domestic consumer units and compact distribution boards where space is limited
- • Not ideal for: High-current industrial panels or installations requiring selective coordination at higher ratings
Combines residual-current detection and overcurrent trip in a slim 18mm width. Front-panel T test button allows straightforward operational checks.
Complete circuit isolation - with two-pole switching
Two-pole switching interrupts both phase and neutral conductors, giving true isolation. User feedback confirms L and N are switched together for safe maintenance.
Safe servicing and clear isolation during repairs or testing. Reduces risk of neutral backfeed when working on the circuit.
Reliable earth-leakage detection - thanks to Type A 30mA sensitivity
Type A protection detects both alternating leakage and pulsating DC leakage, tripping at 30mA residual current. The specification covers a broader range of fault waveforms than basic AC-only RCDs.
Trips reliably on common domestic leakage faults, lowering electric-shock risk. Suits modern appliances that can produce pulsating DC leakage.
Space-saving installation - with 18mm slim width
Slim 18mm module is designed to occupy minimal DIN-rail space, allowing denser layouts in consumer units. The combined RCBO form eliminates the need for a separate MCB and RCD pair.
More circuits can be fitted into a single consumer unit without expanding the board. Useful where adding additional modules would otherwise require a larger enclosure.
✨ The 4 Key Reasons for DIHOOL RCBO Circuit Breaker
- Two-pole switching – Ensures full L and N isolation for safer maintenance and testing
- Front test button – Allows quick operational checks without removing unit from board
- Combined RCBO design – Replaces separate MCB and RCD to save DIN-rail space
- Slim 18mm width – Fits tight consumer units and keeps DIN rail layouts neat
📋 Technical Details at a Glance
- Category: RCBO / Residual Current Circuit Breaker with Overcurrent
- Brand: DIHOOL
- Rated Current: 16A
- Poles: 2-pole (phase and neutral switching)
- Residual Current Rating: 30mA
❓ Frequently Asked Questions
Q: Does it provide earth-leakage protection?
A: Yes, the unit includes Type A earth-leakage protection rated at 30mA, with sensitivity to pulsating DC and AC leakage.
Q: Will it isolate both live and neutral when tripped?
A: Yes, two-pole switching breaks both phase and neutral conductors for complete circuit isolation during trips and maintenance.
Q: Is there a way to test the trip mechanism on site?
A: Yes, a front-panel operating test button marked T allows routine checks of the residual-current function.
🏆 Our Verdict
The DIHOOL RCBO Circuit Breaker suits electricians and homeowners organising compact consumer units or upgrading protection in tight spaces. Combining Type A 30mA residual-current protection with two-pole switching and an 18mm slim form makes it a practical choice where space and safety both matter. Reasonably built with clear testing and isolation features, it represents good long-term value for domestic installations.
