If a Hybird breaker is tripping repeatedly, follow this step-by-step process to identify the cause.
Step 1: Determine the scope
Is it one breaker or multiple breakers tripping?
Single breaker · likely a circuit-specific issue (overload, short circuit, or earth leakage on that circuit). Continue to Step 2.
Multiple breakers · may indicate a supply issue, upstream fault, or controller problem. Check the main supply and upstream protection devices first. If the main supply is stable, treat each breaker individually from Step 2.
Step 2: Identify the trip type
Hybird RCBO breakers can trip for different reasons:
Overcurrent trip · the load on the circuit exceeds the breaker's rated current. This is a thermal or magnetic trip.
Earth leakage trip (RCD function) · leakage current to earth exceeds the threshold (typically 30 mA for Type A). This indicates an insulation fault or faulty appliance on the circuit.
Check the breaker's data in Hybird OS. The leakage reading (in mA) is reported for each breaker. If leakage is elevated (approaching or exceeding 30 mA), the trip is likely caused by earth leakage. If leakage is low but current draw is at or near the breaker's rated capacity, the trip is likely an overcurrent.
Step 3: Check the load
Review the circuit's consumption in Hybird OS. The platform reports active power (W), current (A), and voltage (V) per breaker, updated every few seconds.
If the current reading is consistently near the breaker's rated capacity (e.g., 14-16A on a 16A breaker), the circuit is overloaded. The solution is to reduce the load or upgrade the breaker rating if the wiring supports it.
If the current reading is well below the rated capacity, the trip is unlikely to be caused by overload. Move to Step 4.
Step 4: Check for earth leakage
In Hybird OS, check the leakage reading for the affected breaker. Normal leakage is typically below 5 mA. Readings above 15-20 mA warrant investigation. Readings at or above 30 mA will cause an RCBO trip.
If leakage is high · disconnect loads on the circuit one at a time and monitor the leakage reading in Hybird OS. When the leakage drops, the last disconnected device is likely the source of the fault.
If leakage is normal · the issue may be intermittent. Check for moisture ingress, damaged cable insulation, or faulty equipment that only causes leakage under certain conditions (e.g., when heating elements warm up).
Step 5: Check the RS485 connection
If the breaker is not reporting data to Hybird OS, or if data is intermittent, the RS485 communication may be disrupted. This does not cause the breaker to trip, but it prevents remote monitoring and control.
Check the RS485 wiring connections to the affected breaker.
Verify the breaker appears in the controller's device scan in Hybird OS.
Check for loose connections or damaged cables on the RS485 bus.
Step 6: Escalate if unresolved
If the breaker continues to trip after the above checks, or if the cause cannot be identified, contact Hybird support:
Email: [email protected]
Phone: +45 3020 4900
Provide the site name, controller name, breaker name and Modbus ID, and a description of the tripping pattern (frequency, time of day, any correlation with specific loads).
Need help?
Technical support: [email protected]
Billing and invoicing: [email protected]
Sales and partnerships: [email protected]
Phone: +45 3020 4900