Littelfuse introduces the first varistor series that operates at ambient temperatures up to 125 ° C for high power applications with isolation voltages up to 2500V. By using silicon coating technology, the HMOV varistor series can operate at high temperatures, which is an improvement over previous products. As a competitive product of this product, epoxy coated varistor designs are typically only able to withstand temperatures up to 85 °C. Figure: Littelfuse introduces the first high-temperature 125°C high-performance radial lead HMOV varistor series that is resistant to 10KA current and has an isolation voltage of up to 2500V KNBL1-32 Residual Current Circuit Breaker With Over Load Protection
KNBL1-32 TWO FUNCTION : MCB AND RCCB FUNCTIONS
leakage breaker is suitable for the leakage protection of the line of AC 50/60Hz, rated voltage single phase 240V, rated current up to 63A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will automatically cut off the power within 0.1s to protect human safety and prevent the accident due to the current leakage.
KNBL1-32 Residual Current Circuit Breaker,Residual Current Circuit Breaker with Over Load Protection 1p,Residual Current Circuit Breaker with Over Load Protection 2p Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.zjthermalrelay.com
The HMOV varistor series can operate at high temperatures without the need for additional heat sinks or potting processes, reducing the cost of production of the final product. The HMOV varistor series has the ability to operate at high temperatures, surge current absorption up to 10kA (8/20μs), reliable performance after 1000 cycles of thermal stress testing, and high isolation voltage (2500V). The highest performance radial lead varistor series. The series offers disc diameters of 10 mm, 14 mm and 20 mm.
HMOV varistor series are ideal for high temperature, high power DC or AC applications, including: industrial automation control, solar inverters, safety systems, fire alarms and smoke detectors, smart meters, outdoor LED lighting, base transceiver stations ( BTS) power supply, harsh environment / outdoor power supply.
"The HMOV varistor series is capable of operating at ambient temperatures up to 125 ° C and has excellent inrush current handling capability," said Johnny Chang, product manager for Littelfuse HMOV series varistors. “Therefore, it provides the most reliable, cost-effective and cost-effective circuit protection solution for high-power DC and AC applications in ultra-high temperature indoor and outdoor environments.â€
The HMOV varistor series has the following main advantages:
With an operating temperature of up to 125°C, this high-power end product with this product can operate safely at higher ambient temperatures without the need for additional heat sinks or potting processes, helping to save costs.
High isolation voltage (2500V) eliminates the need for additional insulation and minimizes PCB size by reducing the required space between the varistor and other components on the board.
Thermal shock testing (1000 cycles from -55 ° C to +125 ° C) increases reliability and extends the life of the final product.
Meet the UL1449 and IEC60950-1 standards to support the final product to meet relevant specifications around the world.
leakage breaker can protect against overload and short-circuit. It can be used to protect the line from being overloaded and short-circuited as wellas infrequent changeover of the line in normal situation. It complies with standard of IEC/EN61009-1 and GB16917.1.