Utilizing a fixed thermal-magnetic trip unit, this 20A molded case circuit breaker ensures precise overcurrent and short-circuit protection. It is an essential component for commercial and industrial 3-phase power systems. The device is engineered to bolt into Siemens P1, P2, and P3 panelboards, providing a stable and secure connection. With a 10kAIC rating at 600Y/347VAC, this HACR-rated breaker features a trip-free mechanism that prevents the contacts from being held closed during a fault.
This bolt-on breaker is designed for use in Siemens P1, P2, and P3 series panelboards.
Do I need a mounting kit to install this breaker in P2 or P3 panelboards?
Yes, installing BQD frame breakers in Siemens P2 or P3 panelboards requires the BBKB32 branch breaker mounting kit, which provides space for up to six poles.
What is the difference between the Siemens BQD320 and BQD6320?
The primary difference is the maximum voltage rating. The standard BQD320 is rated up to 480Y/277VAC, whereas the BQD6320 is rated for higher voltage applications up to 600Y/347VAC.
Can I install internal accessories like a shunt trip on this breaker?
Yes, operational devices like shunt trips, auxiliary switches, and alarm switches can be added. These are housed in an add-on module that mounts exclusively to the left side of the breaker.
Is the BQD6320 suitable for reverse feed applications?
Yes, this thermal-magnetic molded case circuit breaker is suitable for reverse feed applications.
Can this breaker be used in DC voltage systems?
Yes, the BQD6320 is rated for 125/250VDC applications and provides a 14kA interrupting capacity at those direct current voltages.
What wire sizes do the lugs on the BQD6320 accept?
The standard lugs accommodate 14 to 6 AWG copper (Cu) conductors or 12 to 6 AWG aluminum (Al) conductors.
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