3VA5145-4EC32-1AA0 The Siemens 3VA5145-4EC32-1AA0 is a 3-pole molded-case circuit breaker designed for system protection. It offers a 45A operational current at 40°C and a breaking capacity of 25kA at 480V.
Mfr Part #:

3VA5145-4EC32-1AA0

Mfr Name: Siemens
Siemens
The Siemens 3VA5145-4EC32-1AA0 is a 3-pole molded-case circuit breaker designed for system protection. It offers a 45A operational current at 40°C and a breaking capacity of 25kA at 480V.
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$ Price Range: $0.99

3VA5145-4EC32-1AA0 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
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Connection Type
Current Rating
Current Rating (Amps)
Depth
Height
Illumination
Mounting Type
Number of Poles
Voltage
Voltage Rating
Width

3VA5145-4EC32-1AA0 Description

Short technical summary and product information.

This Siemens 3VA5 molded-case circuit breaker, part number 3VA5145-4EC32-1AA0, is engineered for reliable system protection. It operates at a rated voltage of 690V AC and features a 3-pole configuration.

 

The breaker has a nominal current rating of 45A at 40°C, with derated values at higher temperatures. Its breaking capacity is rated at 25kA at 480V, 65kA at 240V, and 14kA at 600Y/347V according to UL 489 standards. The overcurrent release is of type TM230 with LI protection function.

 

With a mechanical service life of 20,000 switching cycles and electrical endurance ratings of up to 8,000 cycles, this circuit breaker is built for durability. It supports HACR and HID type applications. The unit has a net weight of 0.951 kg and dimensions of 140mm height, 76.2mm width, and 76.5mm depth.

 

Mounting is facilitated via DIN rail, and it features front connections with a nut keeper kit on both ends. The conductor cross-section for the connection screw ranges from 12 x 1 mm to 17 x 6.5 mm.

3VA5145-4EC32-1AA0 Quick Information

Product Type: Molded-case circuit breaker
Canonical Name: Siemens 3VA5 Molded-case circuit breaker, 3-pole, 45A, 690V, 25kA
Subcategory: Molded Case Circuit Breaker

3VA5145-4EC32-1AA0 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

3VA5145-4EC32-1AA0 Estimated Pricing

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1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

3VA5145-4EC32-1AA0 Features

  • 3-pole molded-case circuit breaker
  • 45A operational current at 40°C
  • 690V AC rated voltage
  • 25kA breaking capacity at 480V
  • DIN rail mounting

3VA5145-4EC32-1AA0 Applications

  • System protection applications
  • Suitable for HACR type loads
  • Suitable for HID type loads
  • Line protection applications

3VA5145-4EC32-1AA0 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the rated operating voltage for this circuit breaker?

The rated operating voltage is 690 V AC.

What is the current rating of the Siemens 3VA5145-4EC32-1AA0 at 40°C?

The operational current rating at 40°C is 45 A.

What is the breaking capacity of this circuit breaker at 480V?

The breaking capacity is 25 kA at 480 V.

How many poles does this circuit breaker have?

This circuit breaker has 3 poles.

What is the mechanical service life of this circuit breaker?

The typical mechanical service life is 20,000 switching cycles.

What type of overcurrent release does this breaker use?

It uses the TM230 overcurrent release with LI protection function.

What are the dimensions of the Siemens 3VA5145-4EC32-1AA0 circuit breaker?

The dimensions are 140 mm height, 76.2 mm width, and 76.5 mm depth.

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This Siemens 3VA5145-4ED32-1AA0 is a 3-pole molded-case circuit breaker designed for system protection. It offers a 45A operational current at 40°C and a breaking capacity of 25kA at 480V.
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The Siemens 3VA5145-6ED32-1AA0 is a 3-pole molded-case circuit breaker designed for system protection. It offers a 45A operational current at 40°C and a breaking capacity of 65kA at 480V.
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