Pyrotechnical Safety Switches

Prevention in Milliseconds. The confidence to avoid short-circuits, fire ignition & battery draining.

Electrical safety solutions

Autoliv low and high voltage Pyrotechnical Safety Switches provide additional safety for vehicles and for a number of industrial applications with low and high voltage electrical systems. Contact us today to discuss how we can address your safety needs with our Pyrotechnical Safety Switches.

Key features

  • Operation time in tenths of milliseconds
  • More cost-effective and better performance than comparable products
  • Pyrotechnics driven, proven billion times over in airbags and seatbelts
  • Simple and robust design
  • Highly safe handling during transport, installation and dismantling
  • With know-how and experience of the market leader in occupant safety
  • All our products are CE & UKCA compliant.

 Protection in vehicle accidents

In case of a crash, damaged and unprotected cables could lead to a hazardous situation for passengers and/or rescuers. During an accident, the pyro fuse can be triggered by the airbag control device or BMS and before a short-circuit can occur as a result of vehicle deformation.

 Protection for Electrical Vehicles

Hybrid, plug-in hybrid, and electric vehicles are taking an increasing part of the mobility landscape. Autoliv’s pyrotechnical safety swatches can protect high and low voltage battery systems of electrified vehicles. Our pyro fuses can protect them from battery failures and overcharging due to short circuits, which can lead to thermal events and fires.

Protection for other applications

 Autoliv’s pyrofuses can be used to protect low and high voltage electrical systems beyond the automotive applications. They can be used to protect all systems producing, storing, and converting electricity with low and high voltage requirements, including photovoltaic and wind turbine installations, energy stationary storage, fuel cells, charging stations, etc.

pss applications

Pyrotechnical Safety Switches lineup

Autoliv’s industry-standard Pyrotechnical Safety Switches pyro fuses and disconnection systems comply with the high-quality requirements of the vehicle industry.

Autoliv manufactures PSS that offers a range of technical specifications, including closing time, short circuit resistance, functioning temperature, and maximum current.

Product highlights

  • Since 2004 in series
  • Can switch up to 400VDC with low current
  • CE / UKCA approved

Product details

  • Opening time @1,75 A / 0,5ms triggering pulse
  • Typical value: < 0,5ms
  • With Cpk: < 2ms
  • Functioning temperature range: - 40°C / +125°C
  • Rating current : 200A / 125°C

Product highlights

  • In series since 2009
  • Weight and package optimized
  • Mounting compatibility with PSS-1
  • CE / UKCA approved

 

Product details

  • Opening time @1,75 A / 0,5ms triggering pulse
  • Typical value: < 0,5ms
  • With Cpk : < 2ms
  • Functioning temperature range: - 40°C / +125°C
  • Rating current: 200A / 125°C

Product highlights

  • In series since 2018
  • High and Low current circuits cut at the same time
  • Can switch up to 400VDC with low current
  • CE / UKCA approved

Product details

  • Opening time @1,75 A / 0,5ms triggering pulse
  • Typical value: < 0,5ms
  • With Cpk: < 2ms
  • Functioning temperature range: - 40°C / +125°C
  • Rating current: 200A / 125°C

Product highlights

  • In series since 2021
  • CE / UKCA approved

Product details

  • Opening time @1,75 A / 0,5ms triggering pulse
  • Typical value: < 0,5ms
  • With Cpk: < 2ms
  • Functioning temperature range: - 40°C / +125°C
  • Rating current: 500A / 105°C
  • Maximum current 25kA / 5 ms

Product highlights

  • Weight : < 275 g

Product details

  • Opening time @1,75 A / 0,5ms triggering pulse
  • Typical value: < 0,5ms
  • With Cpk: < 2ms
  • Functioning temperature range: - 40°C / +125°C
  • Rating current: 500A / 105°C

Product highlights

  • Stable and reliable contact
  • Flameless
  • CE / UKCA approved
  • Can be used as a relay to activate any electrical system

Product details

  • Closing time @1,75 A / 0,5ms triggering pulse
  • Typical value: < 0,5ms
  • With Cpk: < 1ms
  • Functioning temperature range: - 40°C / +125°C
  • Rated voltage: 500 V
  • Short circuit resistance (RT) < 300 µOhm
  • Maximum current: 5kA / 5 ms + 600 A / 60 s

Contact us

Use this form if you would like to know more about our PSS or to get a quote