
Pyro-Closer
The Pyro-Closer enables safe, instantaneous conductive route formation/creation by connecting non-conductive currents.
It could also be applied to prevent abnormal current, protect circuits by connecting ground wires, and can be utilized in combination with the Pyro-fuse as well.
Daicel Safety Strategic Business Units' "One Time Energy" is fully applied to our Pyro-Closer
that enables instantaneous current shutdown and safe, instantaneous conductive route formation/creation.
Application
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Intentional short-circuiting
The Pyro-Closer prevent troubles such as short-circuit and overcharge by creating a new circuit or connecting alternative circuits, therefore applicable in electrical power plants and equipments.
*This photo is for illustrative purposes.
active fields
Mobility Plant, Installation Electricity
Features / Specifications
The Pyro-Closer can instantaneously create a new circuit by physically connecting busbars.
This device also enables intentional short-circuit to release accumulated electricity.
Our Pyro-Closer have great opportunities to be applied to various devices.

Shorting performance | 4,000A/900V |
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Function (breaking) time | <2ms |
Geometry (D×W×L:mm) |
30×30(55.7)×42.7 |
Unit weight | 42g |
Product Data Sheet (PDF) |
PDF:376KB |
Operating principle of the Pyro-Closer
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1.An ignition current is generated from an electric signal in case of an emergency. The Pyro-Closer (One Time Energy) activates to generate gas.
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2.The piston is pushed out by the generated gas, connecting the busbar to create a short-circuit.