Engineered for commercial and industrial applications, this 80A molded case circuit breaker provides reliable long-time and instantaneous (LI) protection. The unit features a fixed thermal and adjustable magnetic trip mechanism for precise coordination. Designed to mount into Siemens P2 and P3 panelboards, it serves as a modern replacement for legacy HFD63B080 frames. Rated for 65kA interrupting capacity at 480VAC, this current-limiting device is HACR rated and supports reverse feed.
Which legacy Siemens circuit breaker does the 3VA5280-6EC31-0AA0 replace?
This 3VA5 series breaker serves as a modern replacement for the legacy Siemens HFD63B080 circuit breaker.
Is the 3VA5280-6EC31-0AA0 suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is certified for use with heating, air conditioning, and refrigeration equipment.
What specific trip unit is installed in the 3VA5280-6EC31-0AA0?
It is equipped with a TM230 thermal-magnetic trip unit. The thermal overload protection is fixed at 80A, while the magnetic short-circuit protection is adjustable from 5 to 10 times the continuous current rating.
Can the 3VA5280-6EC31-0AA0 be reverse fed?
Yes, this molded case circuit breaker supports reverse feed applications, allowing power to be supplied from either the top or bottom terminals.
What is the maximum frame size for the 3VA52 designation?
The 3VA52 frame is a 250A maximum frame size, though this specific breaker is factory-configured with an 80A continuous current rating.
What UL standard does the 3VA5280-6EC31-0AA0 meet?
It is certified to the UL 489 standard for molded case circuit breakers used in low-voltage power distribution.
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Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.