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Siemens 3VA5170-4ED21-0AA0 Molded Case Circuit Breaker

  • 70A
  • 2 Pole
  • Panel Mount
Siemens 3VA5170-4ED21-0AA0
Molded Case Circuit Breaker
Brand Siemens
SKU 3VA5170-4ED21-0AA0
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  • 70A
  • 2 Pole
  • Panel Mount

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Siemens 3VA5170-4ED21-0AA0 - 70A 2 Pole Molded Case Circuit Breaker

Siemens 3VA5170-4ED21-0AA0 - 70A 2 Pole Molded Case Circuit Breaker

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$580.00 In Stock

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Description

Delivering exceptional Class S performance, the Siemens 3VA5170-4ED21-0AA0 provides robust circuit protection for commercial and industrial facilities. This 70A, 2-pole molded case circuit breaker utilizes a TM210 thermal-magnetic trip unit. Built for seamless integration, it installs into Siemens P1, P2, and P3 panelboards and acts as a drop-in replacement for discontinued ED42B070 breakers. Rated for 25 kAIC at 480VAC, it features a trip-free mechanism and current-limiting capabilities.

Specifications

Key specifications
Brand Siemens
Part Number 3VA5170-4ED21-0AA0
Series 3VA5
Amperage 70A
Poles 2
Mounting Style Panel Mount
Voltage 240VAC, 480VAC, 600Y/347VAC, 250VDC
Phase 1
AIC Rating 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 50kA @ 250VDC
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 Fixed Thermal, Fixed 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
Approval CE, CSA, UL, VDE
Temp Rating -25C to 70C
Construction Features HACR Rated, Current Limiting, Reverse Feed, Trip-Free Mechanism

Product FAQs

8 answers
Which Siemens panelboards are compatible with the 3VA5170-4ED21-0AA0 circuit breaker?

This breaker is designed for installation in Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards.

What type of trip unit is equipped on the 3VA5170-4ED21-0AA0?

It features a TM210 thermal magnetic trip unit with fixed long-time and fixed instantaneous (LI) protection settings.

What frame size is the 3VA5170-4ED21-0AA0?

This breaker belongs to the Siemens 3VA51 frame family, which has a maximum frame size of 125A.

Can the trip settings be adjusted in the field?

No, this breaker features fixed thermal and fixed magnetic trip settings. The overload and short-circuit protection levels cannot be modified.

Is the 3VA5170-4ED21-0AA0 suitable for reverse feed applications?

Yes, all Siemens 3VA5 thermal magnetic trip circuit breakers are UL listed for reverse feed applications.

How should this 2-pole breaker be applied in a 250V DC system?

For 250V DC systems, a two-pole breaker like this one is typically used with one pole wired on each leg of the supply circuit.

What is the operating temperature range for this breaker?

The 3VA5170-4ED21-0AA0 has an ambient temperature rating of -25 degrees Celsius to 70 degrees Celsius, or -13 degrees Fahrenheit to 158 degrees Fahrenheit.

Is the 3VA5170-4ED21-0AA0 UL listed?

Yes, this molded case circuit breaker is UL 489 listed for reliable overload and short-circuit protection in commercial and industrial 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