CHM3

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Fuseholders are devices that securely hold a fuse or circuit breaker in place and protect electric circuitry from current overload. CHM3 fuseholders are designed to provide reliable operational performance and overload protection for a wide range of applications. The CHM3 is capable of withstanding large inrush currents, and it offers reliable protection with either a standard circuit breaker or a fuse.

CHM3 fuseholders are typically used in low or medium voltage circuits, such as those found in industrial machinery, HVAC systems, and domestic appliances. The CHM3 is available in many standard styles and sizes, including dual link and panel mount designs. Dual link fuseholders are capable of withstanding up to five times higher current than standard fuseholders. Panel mount fuseholders are suitable for mounting directly onto switchboards or distribution panels.

The CHM3 fuseholders have several features that make them well suited to their intended applications. The body of the holder is made from an impact-resistant material to protect against accidental physical damage. The terminals are designed to accept pre-assembled cable terminations and wire lugs for easy installation. Additionally, the fuseholders are equipped with a reliable internal locking mechanism to prevent fuse removal prior to de-energizing the circuit.

The working principle behind the CHM3 fuseholders is relatively straightforward. When the circuit is energized, the axial contact points of the fuseholder close, allowing current to flow. When the current exceeds the fuse’s rating, the fuse melts, thereby breaking the circuit and protecting the equipment from overload. This process is known as thermal-magnetic protection.

To ensure reliable protection, the CHM3 fuseholders’ terminals are designed to accept only compatible fuse types. This ensures that the appropriate current rating is selected for each application, accordingly providing the necessary levels of protection. An important safety feature of the CHM3 fuseholders is the optional, manually-activated lockout feature. This requires the user to physically open the fuseholder before the fuse can be removed, thereby ensuring that the circuit is de-energized prior to the fuse being changed or removed.

CHM3 fuseholders are designed to provide reliable, long-lasting protection for a variety of low and medium voltage applications. They are easy to install and versatile enough to accommodate a wide range of fuse types and sizes. With their strong construction and convenient lockout feature, the CHM3 fuseholders are an ideal choice for reliable current protection.

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