A highly adaptable solution for commercial power systems, the Siemens 3VA5110-5EF31-0AA0 is a 3-pole, 100A molded case circuit breaker. It is designed for use with Siemens P2, P3, P4, and P5 panelboards, as well as switchboards and industrial enclosures. This model serves as a seamless replacement for the legacy HED43B100 breaker when used with the proper mounting kit. It stands out with its TM240 adjustable thermal and magnetic trip unit, providing 35kA of interrupting capacity at 480VAC.
Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Padlock Attachment, Motor Operator, Rotary Handle, DIN Rail Adapter
Accessories
Lugs Not Included
Standards
IEC 60947-2, UL 489
Approval
CE, CSA, UL, VDE
Temp Rating
-25C to 70C
Construction Features
HACR Rated, Reverse Feed
Product FAQs
7 answers
Can the 3VA5110-5EF31-0AA0 replace older Siemens circuit breakers?
Yes, this model serves as a replacement for the legacy HED43B100 breaker when used with the proper mounting kit.
Does the 3VA5110-5EF31-0AA0 include line and load lugs?
No. The 0AA0 catalog suffix indicates this breaker ships without lugs. You must order compatible 3VA51 lug kits separately based on your conductor material and wire size.
What type of trip unit does this breaker use?
It features a TM240 thermal-magnetic trip unit. Unlike fixed-trip models, this unit provides both adjustable thermal overload and adjustable magnetic short-circuit protection.
Which Siemens panelboards accept this 3VA51 circuit breaker?
This breaker is compatible with Siemens P2, P3, P4, and P5 panelboards, as well as Siemens switchboards and industrial enclosures.
How is this circuit breaker mounted in a panel?
It is a panel-mount breaker that requires a specific mounting strap kit or hardware assembly designed for your exact Siemens panelboard or switchboard chassis.
Is this molded case circuit breaker rated for DC voltage applications?
Yes, it carries a 500VDC rating with an 85kA interrupting capacity, allowing it to be used in direct current systems.
What is the frame size for this specific breaker?
It is built on the Siemens 3VA51 frame, which supports up to 125A. This specific catalog number is configured for a 100A continuous current rating.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.