MF-RM055/240-0

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses have become essential components in many applications. The MF-RM055/240-0 is a PTC resettable fuse, specifically designed for applications that require a reliable, safe shutdown process. It offers users a wide variety of features, such as protection against overloading, short circuits, and reverse polarity.

The MF-RM055/240-0 operates as a non-destructive circuit breaker. It works by opening and closing a normally closed power switch. When current passes through the switch, the device momentarily closes and then automatically opens, interrupts the power and preventing further current flow. When the ambient temperature is below the trip point (65°C minimum), the device will remain open.

The MF-RM055/240-0 is then reset by pushing the switch by hand or applying an external reset signal. Thereafter, the device remains operational until the temperature again rises above the trip point, at which time the cycle is reset again. The device is designed for use in DC circuits. It is suitable for 300V, 16A applications.

The primary advantage of the MF-RM055/240-0 is its low-level failure rate and its ability to protect against destructive effects of over-current and short-circuits. Additionally, the device has built-in reverse polarity protection, which prevents reverse-bias voltage from damaging the circuit.

The MF-RM055/240-0 can be used in a wide range of applications, such as power supplies, appliances, industrial equipment, computer networks, automotive, and consumer electronics. It is also used to protect against high-powered, short-circuits in industrial systems and is designed to comply with UL1950 standards.

In terms of working principle, the MF-RM055/240-0 is composed of two parts: the main component, a PTC resettable fuse, and auxiliary components used to control the device\'s trip level, current capacity, and other variables. When power is switched on, the main component of the device starts to heat up quickly. As the temperature increases, its thermal impedance decreases and its resistance to current increases. Once the device\'s trip point is reached, its resistance to current builds up and the current flow is interrupted.

Once a short circuit has occurred, the device can be reset by applying a reset voltage or force on the switch, which restarts the cycle. This allows the circuit to continue functioning normally, while also providing protection against further over-currents and short-circuits.

Overall, the MF-RM055/240-0 provides efficient circuit protection, can be used in a wide range of applications, and features low-level failure rates. It combines thermal, reverse-bias protection, and current-limiting capabilities to offer users a reliable, safe way to protect circuits from over-current and short-circuit scenarios.

The specific data is subject to PDF, and the above content is for reference