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Siemens 3VA5170-4EF31-0AA0 Molded Case Circuit Breaker

  • 70A
  • 3 Pole
  • Panel Mount
Siemens 3VA5170-4EF31-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA5170-4EF31-0AA0
Select Item Condition
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  • 70A
  • 3 Pole
  • Panel Mount

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Siemens 3VA5170-4EF31-0AA0 - 70A 3 Pole Molded Case Circuit Breaker

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$667.00 In Stock

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Description

Offering advanced overload and short-circuit protection, this 70A molded case circuit breaker is ideal for modern facilities. The 3VA5 frame design ensures reliable performance across demanding commercial and industrial environments. It installs into Siemens P1, P2, and P3 panelboards and switchboards. This model also acts as a seamless substitute for older ED43B070 breakers. Rated at 25 kAIC at 480V, it features a TM240 trip unit with adjustable thermal and magnetic settings.

Specifications

Key specifications
Brand Siemens
Part Number 3VA5170-4EF31-0AA0
Series 3VA5
Amperage 70A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480VAC, 600Y/347VAC, 500VDC
Phase 3
AIC Rating 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 50kA @ 500VDC
Electrical ratings
Amperage Range 49-70A
Fit and installation
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards, Switchboards
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Adjustable Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment, Lug Kits, DIN Rail Adapter
Accessories None (Without Connection)
Standards IEC 60947-2, UL 489, CSA C22.2 No. 5
Approval CE, CSA, EAC, UL, VDE
Temp Rating -25C to 70C
Construction Features HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism

Product FAQs

6 answers
Which panelboards are compatible with the Siemens 3VA5170-4EF31-0AA0 circuit breaker?

This breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards. It requires the appropriate mounting hardware kit for installation.

Can the 3VA5170-4EF31-0AA0 replace older Siemens ED-frame breakers?

Yes, this 3VA51 frame breaker serves as a modern replacement for legacy 70A, 3-pole ED-frame breakers, such as the ED43B070 and ED63B070, when installed with the correct retrofit mounting kit.

What is the frame size of the 3VA5170-4EF31-0AA0?

This breaker is built on the Siemens 3VA51 frame, which has a maximum capacity of 125A.

What type of trip unit is equipped on this 3VA5 breaker?

It features a TM240 thermal-magnetic trip unit with an LI (Long-Time and Instantaneous) trip function. This provides both adjustable thermal (overload) and adjustable magnetic (short-circuit) protection settings to fine-tune the breaker to your specific application.

Can this breaker be reverse fed?

Yes, Siemens 3VA5 thermal-magnetic molded case circuit breakers are UL listed for reverse feed applications.

Is this breaker suitable for use in DC electrical systems?

Yes, it is rated for up to 500VDC with an interrupting capacity of 50kA, making it suitable for direct current applications.

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Reviews

4.8
Rated 4.8 out of 5 stars
Based on 8 reviews
Rating
Ratings
8 reviews
  • 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

  • DT
    DENNIS T.
    Verified Buyer
    Reviewing
    Siemens 3VA5220-6ED31-0AA0 - 200A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/15/26
    Breaker Purchase

    Great price and fast shipment