RCBOs combine residual current protection and overcurrent protection in a single device. This makes them ideal for use in distribution boards where space is limited. The rated breaking capacity of the 1-pole+N DRCBO 3 series is 10 kA. Type AC circuit-breakers only detect alternating fault currents. In the UK, they are only approved for use with fixed equipment, where it is known that the load current contains no DC components. With tripping characteristic C, these circuit-breakers ensure reliable protection for your circuits with loads that generate higher inrush peaks. Standard circuit-breakers are designed for circuits with 230 V or 400 V at 50 Hz.

auxiliary-voltage-independent tripping, sensitive to AC residual currents (type AC), compact design for all rated currents, high short-circuit resistance, green/red switching position indicator, residual current tripping indicator, Strain-relief clamps with protection against wires being lodged behind them and wide terminal cross-section range for rail and line wiring on both connection sides, Use of conventional wiring rails possible, Neutral conductor right, tri-stable snap-in slider for easy mounting and removal, high electromagnetic compatibility (immunity to interference for industrial applications)

quick fastening to mounting rail, any installation position, supply as desired

Power supplies to residential and purpose-built buildings as well as industrial facilities with TN-S, TT and TN-C-S networks. In IT networks, the RCBOs of this series can be set to switch off in the event of a second fault, Not permitted for use in TN-C networks and for protecting systems in which electronic equipment may cause pulsating or smooth DC residual currents or residual currents with frequencies not equal to 50 Hz. Comprehensive protection is not provided with an RCCB type AC. For these applications we recommend our residual current operated circuit-breakers with integral overcurrent protection Type A or our AC-DC sensitive RCBO Type B.

• Operating instructions
• Data sheet
• Technical information derating graph
• Technical information dissipation power
• Prospectus DRCBO 3
• Prospectus Circuit-breaker overview
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• Text for invitation to tender GAEB XML
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• Dimensional drawing Group view
• STEP file
• Wiring diagram