Built for reliable line protection, the Siemens 3VA5125-4ED11-0AA0 provides 25A of single-pole circuit defense. It features a TM210 trip unit with fixed thermal and magnetic settings for dependable long-time and instantaneous tripping. It achieves a 25kAIC rating at 277VAC. This 3VA51 frame breaker mounts into Siemens P2 through P5 panelboards. It can also replace discontinued ED41B025 breakers using a retrofit kit. The reverse-feed capable, HACR-rated design offers maximum flexibility.
Which Siemens panelboards are approved for use with the 3VA5125-4ED11-0AA0?
This 1-pole breaker is designed for installation in Siemens P2, P3, P4, and P5 panelboards. It is also listed for use in compatible Siemens switchboards and standalone enclosures.
Can the trip curve be adjusted in the field for the 3VA5125-4ED11-0AA0?
No, this specific model features a fixed thermal and fixed magnetic trip unit. Both the 25A continuous current rating (Long-Time) and the short-circuit response (Instantaneous) are factory set and cannot be modified by the installer.
What does the 0AA0 suffix indicate in the 3VA5125-4ED11-0AA0 catalog number?
In Siemens 3VA nomenclature, the 0AA0 suffix denotes a standard base breaker. It indicates that the unit is shipped without any factory-installed internal accessories, such as auxiliary switches, alarm contacts, or shunt trips.
Is the 3VA5125-4ED11-0AA0 rated for direct current (DC) applications?
Yes, this breaker supports 125V DC systems with a 14kA interrupting capacity. This dual AC and DC rating allows panel builders to use the same breaker model for standard AC distribution as well as specific DC control or battery circuits.
How is the 3VA5125-4ED11-0AA0 secured within an electrical enclosure?
It utilizes a panel mount configuration. Electricians must bolt or secure the breaker directly to the chassis or mounting pan of compatible Siemens panelboards and switchboards, as it is not designed for standard DIN rail installation.
What specific faults does the LI trip function protect against?
The LI designation indicates Long-Time and Instantaneous protection. The Long-Time element provides thermal protection against sustained overloads, while the Instantaneous magnetic element clears high-level short circuits immediately to prevent equipment damage.
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Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.