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Siemens 3VA4145-6ED34-0AA0 Molded Case Circuit Breaker

  • 45A
  • 3 Pole
  • Panel Mount
Siemens 3VA4145-6ED34-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA4145-6ED34-0AA0
Select Item Condition
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  • 45A
  • 3 Pole
  • Panel Mount

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Siemens 3VA4145-6ED34-0AA0 - 45A 3 Pole Molded Case Circuit Breaker

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$591.60 In Stock

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Description

Built for industrial environments, the Siemens 3VA4145-6ED34-0AA0 is a 3-pole, 45A molded case circuit breaker. It utilizes a TM210 thermal-magnetic trip unit to deliver precise long-time and instantaneous (LI) protection. This panel mount breaker installs into Siemens P1 through P5 panelboards and switchboards. It is an ideal modern substitute for the legacy ED63B045 breaker. Featuring a 65kAIC rating at 480V, this Class H device is current limiting and reverse feed capable.

Specifications

Key specifications
Brand Siemens
Series 3VA4
Amperage 45A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC
Phase 3
AIC Rating 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 100kA @ 250VDC
Fit and installation
Frame Type 3VA41
Terminal Type Lugs
For Use With Siemens P1, P2, P3, P4, P5 Panelboards, Switchboards
Wire Gauge 8 AWG - 3/0 AWG (Cu/Al)
Max Wire 3/0 AWG
Min Wire 8 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CE, CSA, NOM, UL
Temp Rating -25C to 70C
Construction Features Reverse Feed, HACR Rated, High Interrupting Capacity

Product FAQs

7 answers
Can the 3VA4145-6ED34-0AA0 replace older Siemens ED frame circuit breakers?

Yes, the 3VA4 series is the modern replacement for legacy Siemens ED frame breakers, including ED4, ED6, and HED4 models. It is designed to mount into the same Siemens P1 through P5 panelboards and switchboards.

Does this breaker require a specific filler plate when installed in a Siemens P1 panelboard?

When replacing an older breaker or installing this 3VA4 breaker in a Siemens P1 panelboard, you may need a compatible filler plate kit designed for 3VA4, BL, BQD, or ED frames to properly cover any panel gaps.

What type of protection does the LI trip function provide on this 3VA41 breaker?

The LI designation indicates it features a thermal-magnetic trip unit with Long-Time (L) and Instantaneous (I) protection. The fixed thermal element protects against overloads, while the fixed magnetic element protects against short circuits.

Can the 3VA4145-6ED34-0AA0 be reverse fed?

Yes, all Siemens 3VA41 thermal-magnetic trip circuit breakers are UL listed for reverse feed applications, providing flexibility for various installation requirements.

Is this 3VA4 breaker suitable for direct current (DC) systems?

Yes, this breaker is rated for up to 250VDC with a 100kA interrupting capacity, making it suitable for both AC and DC power distribution applications.

What does the current-limiting design of the 3VA4145-6ED34-0AA0 achieve?

The current-limiting design reduces the amount of fault energy let-through during a short circuit, which helps minimize potential thermal and mechanical damage to downstream equipment.

Is the 3VA4145-6ED34-0AA0 suitable for HVAC applications?

Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 5 reviews
Rating
Ratings
5 reviews
  • SW
    SHELDON W.
    Verified Buyer
    Reviewing
    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
    I recommend this product
    Rated 5 out of 5 stars
    9/22/25
    Breaker Order

    Good prices and fast shipping.