Pyro-Fuse Pyro-Fuse

Pyro-Fuse

Eco-friendly electric vehicles (EV, HEV, PHV) have rapidly penetrated the market as social awareness towards environmental protection increased over the years.
EVs equipped with high-voltage battery requires anti-electrification and secondary disasters in case of traffic accidents and malfunctions.

Daicel Safety Strategic Business Unit(SBU)s' Pyro-Fuse enables safe, instantaneous shutdown of high-voltage electric currents.

Pyro-Fuse could also be utilized not only for EVs but also any industrial applications in need of instant circuit isolation.

Pyro-Fuse inquiries

Pyro-Fuse

Product lineup

Daicel Safety Strategic Business Unit(SBU)s' have developed Pyro-Fuse that enables safe, instantaneous shutdown of high-voltage electrical currents.
Product customization is also available based on usage environments and voltage requirements.

PDD *Power Disconnect Device

Pyro-Fuse performance
Appearance PDD2
Breaking capacity 2,000A/48VDC/7µH
Operating temperature range −40℃〜+120℃
Busbar resistance
(pre-operation:+23℃)
<0.1mΩ
Busbar resistance
(post-operation:500VDC)
>10MΩ
Continuous current rating 200A
Function (breaking) time <2ms
Geometry
(D×W×L:mm)
19×70×45
Unit weight (g) 40g
Outgassing outgas
Pyro-Fuse performance
Appearance PDD3
Breaking capacity 3,000A/100VDC/10µH
Operating temperature range −40℃〜+120℃
Busbar resistance
(pre-operation:+23℃)
<0.1mΩ
Busbar resistance
(post-operation:500VDC)
>10MΩ
Continuous current rating 200A
Function (breaking) time <2ms
Geometry
(D×W×L:mm)
15×60×61
Unit weight (g) 60g
Outgassing outgas
Pyro-Fuse performance
Appearance PDD4
Breaking capacity 12,000A/500VDC/20µH
Operating temperature range −40℃〜+120℃
Busbar resistance
(pre-operation:+23℃)
<0.1mΩ
Busbar resistance
(post-operation:500VDC)
>10MΩ
Continuous current rating 350A
Function (breaking) time <2ms
Geometry
(D×W×L:mm)
45×100×76
Unit weight (g) 215g
Outgassing outgas
Pyro-Fuse performance
Appearance PDD5
Breaking capacity 20,000A/500VDC/25µH
3,000A/800VDC/25µH
Operating temperature range −40℃〜+120℃
Busbar resistance
(pre-operation:+23℃)
<0.1mΩ
Busbar resistance
(post-operation:500VDC)
>10MΩ
Continuous current rating 350A
Function (breaking) time <2ms
Geometry
(D×W×L:mm)
43×85×80
Unit weight (g) 250g
Outgassing no outgas
Pyro-Fuse performance
Appearance PDD6
Breaking capacity 25,000A/915VDC/15µH
11,000A/1,000VDC/25µH
Operating temperature range −40℃〜+120℃
Busbar resistance
(pre-operation:+23℃)
<0.1mΩ
Busbar resistance
(post-operation:500VDC)
>10MΩ
Continuous current rating 350A
Function (breaking) time <2ms
Geometry
(D×W×L:mm)
60×100×104
Unit weight (g) 500g
Outgassing no outgas
Pyro-Fuse performance
Model PDD2 PDD3 PDD4 PDD5 PDD6
Appearance PDD2 PDD3 PDD4 PDD5 PDD6
Breaking capacity 2,000A/48VDC/7µH 3,000A/100VDC/10µH 12,000A/500VDC/20µH 20,000A/500VDC/25µH
3,000A/800VDC/25µH
25,000A/915VDC/15µH
11,000A/1,000VDC/25µH
Operating temperature range −40℃〜+120℃ −40℃〜+120℃ −40℃〜+120℃ −40℃〜+120℃ −40℃〜+120℃
Busbar resistance
(pre-operation:+23℃)
<0.1mΩ <0.1mΩ <0.1mΩ <0.1mΩ <0.1mΩ
Busbar resistance
(post-operation:500VDC)
>10MΩ >10MΩ >10MΩ >10MΩ >10MΩ
Continuous current rating 200A 200A 350A 350A 350A
Function (breaking) time <2ms <2ms <2ms <2ms <2ms
Geometry
(D×W×L:mm)
19×70×45 15×60×61 45×100×76 43×85×80 60×100×104
Unit weight (g) 40g 60g 215g 250g 500g
Outgassing outgas outgas outgas no outgas no outgas

Operating principle of Pyro-Fuses

When the signal is detected from the vehicle, an ignition current is generated to operate the Pyro-Fuse, shutting down the circuit and preventing electrical flow.

    1. 1. The ignition current is generated based on the ECU signal.
    1. 2. The initiator ignition operates gas emission.
    1. 3. The pressurized piston detaches the busbar, shutting down the electric circuit.

Pyro-Fuse application

Automobile application

Instant electrical shutdown is realized based on the high reliability cultivated in the Inflator field.
Daicel Safety Strategic Business Unit(SBU)s' have developed Pyro-Fuse that enables safe, instantaneous shutdown of high-voltage electrical currents.
We provide broad application of Pyro-Fuse requirements that could be used for not only electric vehicles, but also gasoline vehicles as well.

Automobile application

Intentional shutdown application examples
  1. Circuit malfunctions

    Circuit malfunctions

    Protection from overcurrent due to short circuits and malfunctions.

  2. Accidents

    Accidents

    Protection from electric shocks and fire by isolating the battery in case of car crashes.

  3. Overcharging

    Overcharging

    Protection from fire due to overcharging.

Industrial application

Safe electrical shutdown on a millisecond level could also be utilized in systems used for industrial power storages, heavy-duty batteries, recyclable energy storages, and electricity transmissions.

Industrial application

Intentional shutdown application examples
  1. Short circuits

    Short circuits

    Shutting down emergency overcurrent.

  2. Overcharging

    Overcharging

    Controlling battery charging to prevent overcharge.

Pyro-Fuse inquiries