E-Bulb is a thermally activated circuit interrupter and extinguisher.
This product is a thermo-glass bulb filled with NOVEC engineered fluid, and has a (metallic) coated surface being able to carry a current of up to 16A (at voltage from 0…250V and any frequency).
So, in case of a fire on a PCB, e.g. in a home appliance, in computer power supplies, switching power supplies or LED lights driver unit, the rising temperature causes the bulb to burst, thus interrupting the (input)power (preventing a fire from re-igniting as the energy is cut off).
At the same time, as the bulb bursts, the extinguishing agent is released, extinguishing the fire directly on the board at a very early stage. The effectiveness has been tested and approved by the independent MPA Institute Dresden This, together with the properties of NOVEC (non-conductive, clean agent, no-residues, non-corrosive) this solution is ideal for on-board fire protection in small enclosed volumes.