Chassis Parts

OnSpot Pressure Cut Off Switch


Onspot Tire Chains has built a reputation for providing high-quality, durable, and reliable traction solutions. The company’s commitment to innovation, safety, and customer satisfaction has helped it to become a leading provider of automatic tire chain systems globally.

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OnSpot Pressure Cut Off Switch

The Onspot Pressure Cut Off Switch is another critical component in the Onspot automatic tire chain system. It is an electrical switch that monitors the air pressure in the system and ensures that the Onspot system only operates when there is sufficient air pressure available.

The primary function of the Pressure Cut Off Switch is to prevent the Onspot system from engaging when there is insufficient air pressure, which could potentially interfere with the vehicle’s air brake system or other pneumatic functions. The switch is typically installed in the air supply line, between the Pressure Protection Valve (PPV) and the Onspot system’s air cylinder.

When the air pressure in the supply line meets or exceeds the required threshold, usually around 70-80 psi (4.8-5.5 bar), the switch closes, allowing the electrical circuit to be completed and enabling the Onspot system to be activated. If the air pressure drops below the set threshold, the switch opens, breaking the circuit and preventing the Onspot system from engaging.

In this way, the Pressure Cut Off Switch adds another layer of safety and protection to the overall Onspot automatic tire chain system, ensuring that it only operates when the air pressure conditions are suitable, without compromising the vehicle’s other critical pneumatic functions.

Onspot Tire Chains is a company that specializes in manufacturing and supplying automatic tire chain systems, specifically designed for a range of commercial vehicles, including trucks, buses, and emergency vehicles. The company’s innovative traction solutions are aimed at improving safety and efficiency during harsh winter conditions.

Founded in the 1970s in Sweden by engineer and inventor Bengt Nilsson, Onspot has since become a globally recognized brand with a strong presence in North America, Europe, and other regions. The idea behind Onspot’s automatic tire chains originated when Nilsson observed the need for a more efficient and convenient way to provide traction on slippery surfaces, compared to the traditional, manually installed tire chains.

Onspot’s automatic tire chain system is designed to be mounted on the vehicle’s suspension, with the chain assembly located just behind the tire. When the driver encounters icy or snowy conditions, the system can be activated from inside the vehicle by a simple flip of a switch. The chain plates, which hold the chains, then swing out and engage with the tire, providing additional grip and stability.

Additional Information

Weight 1 lbs


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