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APO: Active Safety for High Voltage Systems
Electrification is advancing across all industries – from electric vehicles and charging infrastructure to energy storage, aerospace, and fuel cells. As a result, the demand for reliable protection mechanisms in high-voltage systems is increasing. With the new Pyrofuse-APO Series, Schurter launches a fuse technology that sets a new benchmark for safety.
Unlike conventional fuses, the APO Fuse operates actively. In the event of a short circuit or accident, the control unit sends a trigger signal to an integrated micro gas generator. Within milliseconds, the generator produces high pressure that drives a piston to mechanically sever the solid copper busbar. The resulting arc is safely suppressed in a dedicated extinguishing chamber. The outcome is a complete galvanic isolation in less than two milliseconds – with measured values as fast as 0.9 ms.
The APO Series is rated for operating voltages up to 1000 volts and continuous currents up to 400 amperes. With an ultra-low internal resistance in the range of only a few dozen micro-ohms, power losses and temperature rise remain minimal. Its high breaking capacity ensures safe interruption even under extreme short-circuit conditions, while the fully encapsulated design prevents the release of gases or particles.
This unique combination of speed, robustness, and efficiency guarantees maximum system safety. At the same time, the compact design allows for seamless integration into existing architectures and relieves downstream components such as contactors.
With the Pyrofuse-APO Series, Schurter strengthens its position as a technology partner for emobility and the energy transition. Whether in electric vehicles, aerospace applications, or stationary storage systems, the APO Fuse ensures that high-voltage systems remain reliably protected – even under the most demanding conditions.
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RTY Dual Output Sensors - Designed to provide non-contact sensing in harsh transportation and industrial applications
The Honeywell RTY Dual Output Hall-effect Rotary Position Sensors are designed to provide non-contact sensing in harsh transportation and industrial applications with safety redundancy.
The rise of smarter controls in transportation and industrial equipment has been enabled by accurate, reliable, and rugged sensing technology. Hall-effect style sensors provide a portable, non-contact solution that can handle tough operating conditions in these environments.
The RTY Dual Output Series joins the extensive Honeywell portfolio of rugged and reliable Hall-effect Rotary Position Sensors. The addition of the RTY Dual Output Series brings the durability and reliability of our Rotary Position Sensors into customer applications requiring safety redundancy.
About RTY Dual Output Sensors:
The RTY Series Hall-effect Rotary Position Sensors provide non-contact sensing in harsh transportation and industrial applications at a competitive cost.
These shaft activated products are available in two versions: an integral shaft with or without a lever. The lever may allow customers to reduce the number of mechanical linkages required for their applications, which may reduce the cost of the overall customer solution.
These products use a magnetically biased, Hall-effect integrated circuit (IC) to sense rotary movement of the actuator over a set operating range. Rotation of the actuator changes the magnet’s position relative to the IC. The resulting flux density change is converted to a linear output.
Key Features:
Applications:
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© E. Preston (Electrical) Ltd 2025.
UK distributor of electrical and electronic components.
