Built for commercial power distribution, the 3VA4150-5ED34-0AA0 is a 3-pole, 50A MCCB from the Siemens Sentron 3VA4 family. It delivers consistent performance in facilities requiring robust electrical protection. This bolt-on breaker mounts into Siemens P1, P2, and P3 panelboards. It is designed to replace older ED63B050 breakers from the legacy ED6 frame series. Equipped with a fixed thermal-magnetic (LI) trip unit, it is M-Class rated for 35 kAIC at 480V and HACR rated for HVAC use.
Which legacy Siemens circuit breaker does the 3VA4150-5ED34-0AA0 replace?
This 3VA4 series breaker is the direct replacement for the legacy ED6 frame ED63B050 circuit breaker.
What types of panelboards are compatible with this 50A breaker?
This bolt-on breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as compatible Siemens switchboards.
What wire sizes and materials are accepted by the terminals on this breaker?
The terminals accept wire gauges from 8 AWG up to 3/0 AWG and are rated for both copper (Cu) and aluminum (Al) conductors.
What does the M-Class designation indicate for this 3VA4 breaker?
The M-Class rating denotes the breaker's interrupting capacity tier, specifically providing 35 kAIC at 480V and 85 kAIC at 240V.
Is the 3VA4150-5ED34-0AA0 suitable for use in heating and air conditioning applications?
Yes, this breaker is HACR rated, making it fully approved for use with HVAC equipment.
Can this 3-pole breaker be used in DC power systems?
Yes, it is rated for DC applications with an interrupting capacity of 85 kAIC at 250VDC.
Are the trip settings on this 50A breaker adjustable?
No, it features a fixed thermal-magnetic (LI) trip unit, meaning both the long-time (thermal) and instantaneous (magnetic) trip points are factory-set and non-adjustable.
What does the LI trip function code mean on this breaker?
It stands for Long-Time and Instantaneous protection. The thermal element provides long-time overload protection, while the magnetic element provides instantaneous short-circuit protection.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 5 reviews.
Siemens 3VA4160-4ED34-0AA0 - 60A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/27/26
SuperBreakers has you covered
SuperBreakers has you covered when you’re in a pinch and need breakers at the last minute. Their customer service is excellent, and the team consistently goes above and beyond to help. I highly recommend them!
RS
Rob S.
Verified Buyer
Reviewing
Siemens 3VA4150-6ED34-0AA0 - 50A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
4/8/26
50 amp breaker
Very helpful and arrived quickly.
JB
Josh B.
Verified Buyer
Reviewing
Siemens 3VA4130-4ED24-0AA0 - 30A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
3/5/26
Breakers
Exactly as described. Quick shipping.
JL
Jeff L.
Verified Buyer
Reviewing
Siemens 3VA4120-6ED14-0AA0 - 20A 1 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
2/11/26
Better than new
Great condition and fast shipping
KC
Ken C.
Verified Buyer
Reviewing
Siemens 3VA4150-4ED34-0AA0 - 50A 3 Pole Molded Case Circuit Breaker