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Siemens 3VA5112-4ED31-0AA0 3-Pole Circuit Breaker — 125A

Siemens 3VA5 UL Frame 125 3-pole circuit breaker.

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ManufacturerSiemens

Part number3VA5112-4ED31-0AA0

Part Number 3VA5112-4ED31-0AA0

Manufacturer Siemens

Frame Size 125

Poles 3

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3-pole circuit breaker UL Frame 125 25 kA breaking capacity @ 480V TM210 protection In=125A Permanently set short-circuit protection

Product description

The Siemens 3VA5112-4ED31-0AA0 is a 3-pole 3VA5 UL frame 125 circuit breaker designed for line protection. It offers a breaking capacity of S class, rated at 25 kA at 480 V. This breaker utilizes TM210 technology for overload protection (Ir=125 A) and has a permanently set short-circuit protection (Ii=10 x In).

Ideal for three-phase power systems, this circuit breaker is suitable for applications in industrial facilities, commercial buildings, and machinery where reliable protection of electrical circuits is critical. Its 480V rating makes it suitable for standard industrial voltages.

Stanlo Automation, a veteran-owned distributor, provides this Siemens 3VA5112-4ED31-0AA0 circuit breaker. We are committed to supplying quality surplus industrial automation components to meet your project requirements.

Technical specifications

Part Number	3VA5112-4ED31-0AA0
Manufacturer	Siemens
Frame Size	125
Poles	3
Breaking Capacity Class	S
Breaking Capacity	25 kA @ 480 V
Protection Type	TM210
In	125 A
Ir	125 A
Ii	10 x In

Common applications

Three-phase power systems

Industrial facilities

Commercial buildings

Machinery protection

Distribution panels

Compatible systems

3-phase industrial power systems Machine control circuits Building electrical distribution

Also known as

Siemens 3VA5112-4ED31 3VA5 125A 3-pole breaker Siemens MCCB

Replaces / compatible with

This is a specific 3-pole configuration within the Siemens 3VA5 circuit breaker line. Check Siemens documentation for compatibility with older models or specific system requirements.

Technical note

Expert tip

This 3-pole breaker is suitable for protecting three-phase circuits where a 125A rating and 25kA interrupting capacity at 480V are required.

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Frequently asked questions

What is the short-circuit protection setting for the Siemens 3VA5112-4ED31-0AA0?

The Siemens 3VA5112-4ED31-0AA0 features permanently set short-circuit protection with an Ii setting of 10 times the nominal current (In). For this 125A breaker, the Ii is set at 1250A.