Built for heavy-duty industrial applications, this 225A Siemens breaker offers reliable power distribution. It belongs to the Sentron FD frame group. This bolt-on unit installs into Siemens P2 and P3 panelboards, as well as motor control centers. Lugs are sold separately, requiring the TA1FD350A kit. Rated at 200 kAIC at 480V, its current-limiting capability reduces stress on downstream circuits. The device utilizes an adjustable magnetic trip.
Current Limiting, HACR Rated, Non-Interchangeable Trip, Trip-Free Mechanism
Special Features
Current Limiting
Product FAQs
6 answers
What panelboards and enclosures are compatible with the CFD63B225?
This bolt-on breaker is designed for installation in Siemens P2 and P3 panelboards, as well as compatible Siemens switchboards and motor control centers.
What does the 'C' in the CFD63B225 catalog number indicate?
The 'C' indicates that this is a current-limiting circuit breaker. It is engineered to interrupt high fault currents quickly, reducing let-through energy to protect downstream electrical equipment.
How is the trip unit configured on this breaker?
It features a thermal-magnetic trip unit with Long-Time and Instantaneous (LI) functions. The thermal overload protection is fixed, while the magnetic short-circuit protection is adjustable to coordinate with your specific system requirements.
What wire sizes and materials are supported for installation?
The lugs accept 6 AWG to 350 kcmil copper (Cu) conductors, or 4 AWG to 350 kcmil aluminum (Al) conductors.
Can the CFD63B225 be used in DC electrical systems?
Yes, in addition to its AC ratings, this breaker is rated for DC applications up to 500VDC with an interrupting capacity of 30kAIC.
What frame family does this breaker belong to?
The CFD63B225 is part of the Siemens Sentron FD frame group.
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