BQD3100

Siemens’ part number BQD3100 is a reliable molded case circuit breaker (MCCB) integral to electrical protection systems. With a fixed thermal magnetic trip unit, it is designed to provide both long-time and instantaneous trip functions (LI). This ensures the circuit breaker can effectively respond to both prolonged overloads and sudden short circuits. It supports a robust amperage rating of 100 amps, making it suitable for substantial electrical loads.

The breaker is mounted via a bolt-on style, providing secure installation in panelboards or enclosures. It can accommodate copper wire sizes down to 8 AWG and aluminum wire sizes up to #1 AWG, allowing versatility in wiring configurations. Rated for a system voltage of 480Y/277 VAC, it delivers stable performance in various commercial and industrial applications.

The interrupting rating at 480V for this unit is 14 kA (kAIC), indicating its capacity to safely disconnect electrical circuits during fault conditions. The BQD3100 has received key certifications, including UL Listing and CSA Certification, ensuring compliance with industry standards. Additionally, it is HACR rated, making it compatible with heating, air conditioning, and refrigeration equipment.

Environmental durability is worth noting, as this breaker can function effectively at humidity levels of up to 80% relative humidity, non-condensing, both during operation and while in storage. Overall, the BQD3100 offers robust protection against electrical failures, making it a dependable choice for enhancing safety within electrical systems.