Engineered for industrial power distribution, the 3VA5215-5EF31-0AA0 is a 3-pole, 150A molded case circuit breaker from Siemens. It offers precise overcurrent protection for commercial facilities. Compatible with Siemens 3VA panelboards, it replaces the older FXD63B150 model. Note that a mounting kit is required when installing this unit into legacy P1 panelboards. Equipped with a TM240 trip unit, it features adjustable thermal and magnetic settings and a 35 kAIC rating at 480V.
What legacy Siemens breaker does the 3VA5215-5EF31-0AA0 replace?
This model serves as the modern replacement for the legacy Siemens FXD63B150 molded case circuit breaker.
Can I install this breaker in older Siemens P1 panelboards?
Yes, but installing the 3VA5215-5EF31-0AA0 into legacy Siemens P1 panelboards requires a specific retrofit mounting kit. It is natively compatible with current 3VA panelboards, switchboards, and enclosures.
What is the frame size for this circuit breaker?
It is built on the Siemens 3VA52 frame, which has a 250A maximum frame size capacity.
What type of trip unit is equipped on the 3VA5215-5EF31-0AA0?
It features a TM240 thermal-magnetic trip unit with adjustable long-time and adjustable instantaneous protection settings.
What is the adjustable thermal range for this 150A breaker?
The TM240 trip unit allows the continuous current (Ir) to be adjusted from 120A to 150A.
What is the adjustable magnetic trip range?
The instantaneous short-circuit protection (Ii) can be adjusted from 5 to 10 times the nominal current rating, equating to a range of 750A to 1500A.
What breaking capacity class does this model fall under?
The 3VA5215-5EF31-0AA0 is a Class M (Medium) breaking capacity breaker.
What is the operating temperature range for this Siemens 3VA breaker?
It is rated for operation in ambient temperatures ranging from -25 degrees C to 70 degrees C (-13 degrees F to 158 degrees F).
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Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.