Fuse module BZ-3 three-socket, I=6.3A, 1 module

Fuse module for electrical installation protection

This three-socket fuse module BZ-3 from F&F is a reliable solution for protecting electrical circuits against overload and short circuit. Designed for mounting on a TH-35 mm DIN rail, it provides a quick response in case of exceeding the permissible current, minimizing the risk of damage and fire. Operation indication with a red LED simplifies the identification of a blown fuse, and its compact size (1 module – 18 mm wide) allows for efficient use of space in the distribution box.

Functionality and application

The BZ-3 module is compatible with standard 5x20 mm fuse links, providing flexibility in selecting the appropriate protection value. The rated current of 6A makes it ideal for protecting lighting circuits, socket outlets or devices with lower power consumption. The tilting fuse holder facilitates its replacement, and the screw terminals ensure a secure connection of wires with a cross-section of up to 2.5 mm². It is worth remembering that even after the fuse link has blown, a small current of the signaling diode (maximum 3 mA) may flow through the circuit, therefore it does not provide complete circuit isolation.

User comfort and durability

The BZ-3 module is made of high-quality duroplast, which guarantees its durability and resistance to external factors. A wide operating temperature range (-25°C to +50°C) allows its use in various environmental conditions. Simple mounting on a DIN rail and intuitive operation make it a user-friendly product for both professional installers and end users. Additionally, the availability of quick (S) and time-delay (T) fuse links in the range of 0.1A to 6.3A allows for precise adjustment of the protection to the specific needs of a given circuit.