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Siemens 3VA5145-4ED11-0AA0 Molded Case Circuit Breaker

  • 45A
  • 1 Pole
  • Panel Mount
Siemens 3VA5145-4ED11-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA5145-4ED11-0AA0
Select Item Condition
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  • 45A
  • 1 Pole
  • Panel Mount

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Siemens 3VA5145-4ED11-0AA0 - 45A 1 Pole Molded Case Circuit Breaker

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$284.20 In Stock

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Description

Engineered for commercial and industrial use, the Siemens 3VA5145-4ED11-0AA0 is a 1-pole, 45A molded case circuit breaker built on the 125A 3VA51 frame. This panel mount MCCB installs into Siemens 3VA panelboards and switchboards. It also serves as a direct replacement for legacy ED41B045 breakers. Equipped with a TM210 thermal-magnetic trip unit, it provides fixed LI protection. It delivers a 25 kAIC rating at 277V and is reverse feed rated.

Specifications

Key specifications
Brand Siemens
Series 3VA5
Amperage 45A
Poles 1
Mounting Style Panel Mount
Voltage 120VAC, 277VAC, 347VAC
Phase 1
AIC Rating 65kA @ 120VAC, 25kA @ 277VAC, 14kA @ 347VAC
Fit and installation
Frame Type 3VA51
Terminal Type Lugs
For Use With Siemens 3VA Panelboards, Switchboards
Wire Gauge 14-2 AWG
Max Wire 2 AWG
Min Wire 14 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 Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator, Lug Kits, DIN Rail Adapter
Accessories None (Without Connection)
Standards IEC 60947-2, UL 489, CSA C22.2 No. 5
Approval ABS, CE, CSA, cULus, DNV, EAC, GL, Lloyd's, RCM, UL, VDE
Temp Rating -25C to 70C
Construction Features HACR Rated, HID Rated, Reverse Feed

Product FAQs

6 answers
Which panelboards are compatible with the 3VA5145-4ED11-0AA0 circuit breaker?

This bolt-on breaker is designed specifically for installation in Siemens 3VA series panelboards and switchboards.

What frame size is the 3VA5145-4ED11-0AA0?

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 45-amp rating.

What wire sizes do the lugs on this 45A breaker accept?

The terminal lugs on this breaker are sized to accept copper or aluminum conductors ranging from 14 AWG to 2 AWG.

Can I adjust the trip curve settings on this breaker?

No. It features a TM210 fixed thermal and fixed magnetic trip unit, meaning the long-time overload and instantaneous short-circuit protection levels are factory-set and non-adjustable.

What do the L and I stand for in the trip function code?

The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) protection for standard overloads and Instantaneous (I) protection for short circuits.

What are the UPC and EAN codes for this Siemens breaker?

The UPC for the 3VA5145-4ED11-0AA0 is 804766299995 and the EAN is 4042948838587.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 9 reviews
Rating
Ratings
9 reviews
  • MR
    Mark R.
    Verified Buyer
    Reviewing
    Siemens 3VA5290-5EC31-0AA0 - 90A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/6/26
    Breaker from SuperBreakers

    SuperBreakers had what I needed and got it to me very Fast.

  • EA
    Edward A.
    Verified Buyer
    Reviewing
    Siemens 3VA5112-5EC31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/11/26
    Quick Shipping

    Instock and quick free shipping over a $100

  • JF
    Justin F.
    Verified Buyer
    Reviewing
    Siemens 3VA5450-5EC31-0AA0 - 500A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/2/26
    SIEMENS BREAKER WAS SENT NEXT DAY...

    ORDER CAME WHEN IT WAS PROMISSED AND WAS CORRECT... HAPPY CUSTOMER.

    THANK YOU,

    JUSTIN

  • GM
    Gary M.
    Verified Buyer
    Reviewing
    Siemens 3VA5112-4EC31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    6/19/26
    Hard to find Siemens breaker

    Great product at a fair price

  • RJ
    Rene J.
    Verified Buyer
    Reviewing
    Siemens 3VA5212-6EF31-0AA0 - 125A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 4 out of 5 stars
    4/13/26
    Siemens 3VA5212-6EF31-0AA0 

    Item arrived quickly and in perfect condition