Built for commercial and industrial facilities, the Siemens 3VA5320-5EC31-0AA0 is a 200A, 3-pole molded case circuit breaker. It is equipped with a thermal-magnetic trip unit featuring fixed thermal and adjustable magnetic settings for precise LI protection. This current-limiting breaker mounts into Siemens P3, P4, and P5 panelboards, as well as SB switchboards and motor control centers. Offering 35kAIC at 480V, it serves as a replacement for the legacy JXD63B200.
HACR Rated, Current Limiting, Reverse Feed, Non-Interchangeable Trip
Product FAQs
8 answers
What legacy Siemens circuit breaker does the 3VA5320-5EC31-0AA0 replace?
This 3VA53 frame breaker is the modern replacement for the legacy JXD63B200. Note that replacing a legacy JD frame breaker in an existing panelboard or switchboard may require a specific retrofit strap kit.
Which Siemens panelboards and switchboards are compatible with this breaker?
The 3VA5320-5EC31-0AA0 is designed for use in Siemens P3, P4, and P5 panelboards, as well as SB switchboards and motor control centers. Proper strap kits or mounting hardware are required for installation.
How does the TM230 trip unit operate on this breaker?
The TM230 is a thermal-magnetic trip unit featuring fixed thermal protection and adjustable magnetic protection (FTAM). The thermal overload is permanently set at 200A, while the instantaneous short-circuit protection can be adjusted between 5 and 10 times the continuous current (1000A to 2000A).
Can this breaker be used in DC applications?
Yes, this thermal-magnetic breaker is rated for DC applications up to 500VDC with an interrupting capacity of 85kA. When applying 3-pole breakers on 500V ungrounded DC systems, the power supply must be connected in a zig-zag configuration through the breaker to ensure voltage is uniformly distributed across the poles.
Is the 3VA5320-5EC31-0AA0 suitable for reverse feed applications?
Yes, all Siemens 3VA5 thermal-magnetic circuit breakers are UL listed for reverse feed applications, allowing power to be supplied from either the line or load side terminals.
What is the frame size of the 3VA5320-5EC31-0AA0?
This breaker belongs to the 3VA53 frame class, which has a maximum physical capacity of 400A. However, this specific model is equipped with a 200A trip unit.
What interrupting class does this breaker belong to?
This model is an M-Class (MJAS) breaker, providing a medium interrupting capacity of 35kA at 480VAC and 18kA at 600VAC.
Is this breaker HACR rated?
Yes, the 3VA5320-5EC31-0AA0 is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.