Built for demanding industrial applications, this 225A molded case breaker features a highly adaptable TM240 trip unit. Operators can fine-tune both the continuous current and instantaneous magnetic response to match specific load requirements. The device installs into Siemens P3, P4, and P5 panelboards and provides a robust 65kAIC rating at 480V. When paired with the appropriate strap kit, it functions as a modern upgrade for discontinued HJD63B225 components.
HACR Rated, Reverse Feed, Current Limiting, High Interrupting Capacity
Product FAQs
7 answers
Which Siemens panelboards are compatible with this breaker?
The 3VA5322-6EF31-0AA0 is designed to mount in Siemens P3, P4, and P5 panelboards, as well as compatible switchboards. Note that a specific 3VA53 frame strap kit is required for panelboard installation.
Does the 3VA5322-6EF31-0AA0 include terminal lugs?
No, this model ships from the factory without lugs. You will need to source the correct lug kits separately based on your specific conductor size and material.
What is the frame size for this 225A circuit breaker?
While it has a 225A continuous current rating, it is built on the Siemens 3VA53 frame, which is physically a 400A frame size. This is important to know when sizing enclosures or selecting mounting strap kits.
What type of trip unit is installed in the 3VA5322-6EF31-0AA0?
It is equipped with a Siemens TM240 thermal-magnetic trip unit. This ATAM (Adjustable Thermal, Adjustable Magnetic) configuration allows you to fine-tune both the continuous current and the instantaneous short-circuit response.
What is the adjustable thermal range for the TM240 trip unit on this breaker?
The continuous current setting (Ir) can be adjusted from 157.5A up to the maximum 225A rating, allowing you to precisely match the breaker to your load requirements.
What is the magnetic trip adjustment range for the 3VA5322-6EF31-0AA0?
The instantaneous magnetic response (Ii) can be set between 5 and 10 times the rated current. For this 225A breaker, that provides a short-circuit trip range of 1125A to 2250A.
Can this breaker replace discontinued Siemens JD frame models?
Yes. When installed with the correct strap kit, the 3VA5322-6EF31-0AA0 functions as a modern upgrade for legacy breakers such as the discontinued HJD63B225.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.