Siemens 3VA5145-5EC31-1AA0

Circuit Breaker 3VA51 3P 45A 35KA FTAM NAV

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Siemens 3VA5145-5EC31-1AA0 Circuit Breaker 3VA51 3P 45A 35KA FTAM NAV — Circuit Breakers & Fuses
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Product Description

Lifecycle Status:

The 3VA51 circuit breaker operates within a rated voltage of 690V and provides effective line protection through its three poles, rated at 45A. It incorporates a thermal-magnetic trip unit, specifically model TM230, which offers fixed overload protection set at 45A and adjustable short-circuit protection ranging from 5 to 10 times the nominal current (Ii). The device stands out with its medium breaking capacity (Class M) of 35kA at 480V and 18kAIC at 600Y/347.

Designed without lugs, this circuit breaker is suitable for naval applications and can operate in environments with temperatures up to 50°C. It measures 3 inches in width, 5.5 inches in height, and 3.7 inches in depth. Additionally, it features a rocker lever as the control element and is compatible with DIN rail (top hat rail) mounting.

Country of origin is CZ, and the device is constructed as a built-in device using fixed built-in techniques. Notably, it does not include integrated earth fault protection or an under-voltage release, but it is a complete device with a protection unit.

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Offer details

Best offer from:
Trusted supplier — Germany, member since 2024
Availability:
0 pcs.
On Request
Updated at: 11-09-2026
Condition:
New Factory Sealed
New Factory Sealed - A brand-new, unused, unopened, undamaged item in its original manufacturer-sealed packaging.
The Seller is responsible for shipping the product and invoicing

Specifications

Brand
Siemens
Number of poles
3
Rated voltage
690 V
Motor drive optional
Motor drive integrated
Degree of protection (IP)
IP40
Rated permanent current Iu
45 A

Available Offers

(2)
3VA5145-5EC31-1AA0 Siemens, Circuit Breakers & Fuses

Siemens

Available:
0 pcs.
On Request
Updated at: 11-09-2026
Offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees
Warranty:
12 months

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Documents

Data Sheet

Datasheet for Siemens 3VA5145-5EC31-1AA0, including specifications and features.

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CAD Models

3D CAD model and technical drawings, ready for your design software.

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