Siemens 3VA5712-6EC31-0AA0 Molded Case Circuit Breaker

Name: Siemens 3VA5712-6EC31-0AA0 - 1200A 3 Pole Molded Case Circuit Breaker
Brand: Siemens
SKU: 3VA5712-6EC31-0AA0
Price: 8542.99 USD
Availability: OutOfStock
Rating: 4.8 (9 reviews)

1200A
3 Pole
Panel Mount

Siemens 3VA5712-6EC31-0AA0

Molded Case Circuit Breaker

Brand Siemens

SKU 3VA5712-6EC31-0AA0

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Earn 8542 SuperPoints

1200A
3 Pole
Panel Mount

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$8,542.99

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Siemens 3VA5712-6EC31-0AA0 - 1200A 3 Pole Molded Case Circuit Breaker

New

$8,542.99

Check Stock

Quantity

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Description Specifications Product FAQs SuperClub Warranties Shipping Reviews 4.8 (9)

Description

Designed for high-capacity power distribution, the Siemens 3VA5712-6EC31-0AA0 is a 1200A, 3-pole MCCB. It incorporates a TM230 trip unit, offering fixed thermal and adjustable magnetic functions for LI protection. This breaker is engineered for compatibility with Siemens P5 panelboards and switchboards. It also functions as an exact replacement for legacy HND63120 units. With a 65kAIC rating at 480VAC, this Class H device is HACR rated and supports reverse feed operations.

Specifications

Key specifications
Brand	Siemens
Series	3VA5
Amperage	1200A
Poles	3
Mounting Style	Panel Mount
Voltage	240VAC, 480VAC, 600VAC
Phase	3
AIC Rating	100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC

Fit and installation
Frame Type	3VA57
Terminal Type	Lugs
For Use With	Siemens P5 Panelboards, Switchboards

Protection and operation
Trip Technology	Thermal Magnetic
Trip Function Code	LI
Trip Function	Long-Time, Instantaneous
Trip Adjustability	Fixed Thermal, Adjustable Magnetic

Standards and features
Available Options	Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Lockout Attachment
Accessories	Nut Keeper
Standards	IEC 60947-2, UL 489
Approval	CE, CSA, UL
Temp Rating	-25C to 70C
Construction Features	HACR Rated, Reverse Feed

Product FAQs

6 answers

What panelboards are compatible with the 3VA5712-6EC31-0AA0?

This 1200A breaker is engineered for installation in Siemens P5 panelboards and Siemens switchboards.

What legacy Siemens circuit breaker does the 3VA5712-6EC31-0AA0 replace?

This 3VA57 frame breaker serves as an exact replacement for legacy Siemens HND63120 molded case circuit breakers.

Is the 3VA5712-6EC31-0AA0 suitable for reverse feed applications?

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

How is the trip unit adjusted on this breaker?

It utilizes a TM230 thermal-magnetic trip unit that features a fixed thermal setting for overload protection and an adjustable magnetic dial for short-circuit protection.

What does the 6 in the 3VA5712-6EC31-0AA0 catalog number indicate?

The 6 designates this as a Class H interrupting capacity breaker, providing a 65kAIC rating at 480VAC.

What lug kit is compatible with this 1200A 3VA57 frame breaker?

For 1200A 3-pole applications, the 3VA9773-0JJ43 aluminum lug terminal kit is commonly used. It accepts four 1/0 AWG to 500 kcmil conductors per phase.

SuperClub

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Shipping

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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

4.8

Rated 4.8 out of 5 stars

Based on 9 reviews

9 reviews

Sort

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.
Was this helpful?
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
Was this helpful?
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
Was this helpful?
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
Was this helpful?
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
Was this helpful?