The Siemens 3VA5150-6ED31-0AA0 is a 3-pole, 50A molded case circuit breaker designed for high-performance commercial and industrial power distribution. Equipped with a TM210 thermal-magnetic trip unit, it provides fixed long-time and instantaneous (LI) protection. This 3VA5 frame breaker delivers a 65kAIC interrupt rating at 480VAC and is HACR and HID rated. It integrates into Siemens P1, P2, and P3 panelboards and switchboards, and replaces the legacy HHED63B050 breaker.
What legacy Siemens breaker does the 3VA5150-6ED31-0AA0 replace?
This 3VA51 frame breaker is the direct replacement for the legacy Siemens HHED63B050 circuit breaker. It matches the 50A rating, 3-pole configuration, and 65kA at 480V interrupting capacity of the older ED frame model.
Which Siemens panelboards accept the 3VA5150-6ED31-0AA0 breaker?
This breaker is compatible with Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards. Installation requires the appropriate 3VA mounting strap or hardware kit specific to the panelboard type.
What does the LI designation mean on the TM210 trip unit?
The LI code indicates that the thermal-magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. On the 3VA5150-6ED31-0AA0, both the thermal and magnetic trip thresholds are fixed.
What is the maximum frame size of the 3VA5150-6ED31-0AA0?
This breaker is built on the Siemens 3VA51 frame, which supports a maximum continuous current of 125 amps. This specific unit is factory-calibrated for a 50-amp continuous load.
Are the trip settings adjustable on this circuit breaker?
No, the TM210 trip unit on this model features fixed thermal and fixed magnetic settings. Applications requiring adjustable trip curves will need a breaker with a different trip unit, such as the TM230 or TM240.
Is this circuit breaker rated for HVAC and lighting applications?
Yes, the 3VA5150-6ED31-0AA0 is both HACR and HID rated. This means it is certified for use with heating, air conditioning, and refrigeration equipment, as well as high-intensity discharge lighting loads.
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Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.