Built for demanding commercial, industrial, and marine environments, the Siemens 3VA5225-5EF31-0AA0 is a 250-amp molded case circuit breaker. It integrates seamlessly into Siemens P1, P2, and P3 panelboards, as well as SB switchboards and motor control centers, acting as an exact replacement for the FXD63B250. Featuring a 35kAIC rating at 480VAC and a TM240 trip unit, this breaker provides fully adjustable thermal and magnetic trip settings for tailored overcurrent and short-circuit protection.
HACR Rated, Current Limiting, Reverse Feed, Non-Interchangeable Trip
Product FAQs
8 answers
Which Siemens panelboards and switchboards accept the 3VA5225-5EF31-0AA0 circuit breaker?
This breaker is compatible with Siemens P1, P2, and P3 panelboards, SB switchboards, and Siemens Motor Control Centers.
What type of trip unit is installed in the 3VA5225-5EF31-0AA0?
It features a TM240 thermal-magnetic trip unit with LI functions, providing both adjustable thermal overload and adjustable magnetic short-circuit protection.
What is the adjustable thermal range for this 250A breaker?
The thermal overload protection (Ir) on the TM240 trip unit can be adjusted from 200A to 250A.
What is the adjustable magnetic trip range for the 3VA5225-5EF31-0AA0?
The instantaneous magnetic short-circuit protection (Ii) is adjustable from 5 to 10 times the nominal current, allowing a setting range of 1250A to 2500A.
What does the 0AA0 suffix indicate in the 3VA5225-5EF31-0AA0 catalog number?
The 0AA0 suffix designates a standard breaker configuration without factory-installed internal accessories such as auxiliary switches, alarm switches, or shunt trips.
What does the 5 in the 3VA5 series designation represent?
The 5 indicates that the breaker uses a thermal-magnetic trip unit. In contrast, the Siemens 3VA6 series utilizes electronic trip units.
Can the 3VA5225-5EF31-0AA0 be reverse fed?
Yes, this molded case circuit breaker is suitable for reverse feed applications.
What frame size is the 3VA5225-5EF31-0AA0?
It is built on the Siemens 3VA52 frame, which supports a maximum continuous current of 250 amps.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.