Engineered for industrial applications, the Siemens 3VA5225-6ED31-0AA0 is a 3-pole, 250A molded case circuit breaker from the SENTRON 3VA5 family. This panel mount MCCB installs into Siemens 3VA panelboards and switchboards. With a mounting kit, it serves as a replacement for legacy HFXD63B250 breakers. Rated 65kAIC at 480VAC, it utilizes a TM210 trip unit with fixed thermal and magnetic settings. The current-limiting design minimizes fault energy.
What legacy Siemens breaker does the 3VA5225-6ED31-0AA0 replace?
This 3VA5 breaker serves as a direct upgrade and replacement for the legacy HFD63B250 F-frame molded case circuit breaker. It offers the same 250A continuous current and 65kAIC at 480V but features a newer, more compact design.
Are mechanical lugs included with the 3VA5225-6ED31-0AA0 out of the box?
No, the 0AA0 suffix indicates this model comes with bare terminals and a nut keeper kit. You must purchase the appropriate lug kits separately or connect the breaker directly to busbars depending on your specific panel setup.
What type of trip unit is installed in this specific model?
It features a TM210 thermal-magnetic trip unit with fixed thermal (Long-Time) and fixed magnetic (Instantaneous) protection settings. This is commonly referred to as an FTFM configuration.
Which electrical distribution enclosures are compatible with this 3VA52 breaker?
This 250A frame breaker is engineered for installation in Siemens 3VA series panelboards, switchboards, and motor control centers. It is also suitable for base mounting in custom industrial control panels.
Is the 3VA5225-6ED31-0AA0 suitable for DC voltage applications?
Yes, this 3VA5 series breaker is approved for both AC and DC systems. It handles a maximum DC voltage of up to 750VDC with an interrupting capacity of 85kA, making it highly versatile for specialized industrial applications.
What does the 65kA interrupting rating at 480V indicate?
The 65kAIC rating means the breaker can safely clear a short-circuit fault of up to 65,000 amps at 480V AC without sustaining catastrophic damage. This protects downstream industrial equipment and wiring from high-level overcurrent events.
What core safety standards does the Siemens 3VA5 series meet?
The 3VA5 series is fully certified to UL 489 standards for North American commercial and industrial power distribution. It also meets IEC 60947-2, allowing OEM switchgear manufacturers to use a single breaker platform globally.
Can I mount this 250A breaker on a standard DIN rail?
No, the 3VA52 frame is too large and heavy for standard 35mm DIN rail mounting. It requires direct panel mounting with screws or direct integration into a compatible Siemens panelboard chassis.
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Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.