3VA5120-4ED12-1AA0 The Siemens 3VA5120-4ED12-1AA0 is a 1-pole molded-case circuit breaker designed for system protection. It offers a 20A operational current and a 25kA breaking capacity at 277V.
Mfr Part #:

3VA5120-4ED12-1AA0

Mfr Name: Siemens
Siemens
The Siemens 3VA5120-4ED12-1AA0 is a 1-pole molded-case circuit breaker designed for system protection. It offers a 20A operational current and a 25kA breaking capacity at 277V.
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$ Price Range: $0.99

3VA5120-4ED12-1AA0 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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3VA5120-4ED12-1AA0 Description

Short technical summary and product information.

This Siemens 3VA5 series molded-case circuit breaker, part number 3VA5120-4ED12-1AA0, is a 1-pole device designed for system protection applications. It features a rated operational current of 20A at 40°C, with derating at higher temperatures. The circuit breaker provides a breaking capacity of 25kA at 277V and 14kA at 347V, suitable for various protection needs.

 

The device operates at a rated voltage of 415V AC and utilizes TM210 overcurrent release with LI protection function. It is designed for DIN rail mounting and features front connections with a nut keeper kit. The mechanical service life is rated for a typical 20,000 switching cycles, with electrical endurance varying based on voltage and load conditions.

 

Key electrical specifications include a maximum power loss of 4.07W. The breaker is designed according to UL 489 standards and is suitable for HACR, HID, and SWD type applications. It does not include communication or other measurement functions.

3VA5120-4ED12-1AA0 Quick Information

Product Type: Molded-case circuit breaker
Canonical Name: Siemens 3VA5 Molded-case circuit breaker, 1-pole, 20A, 25kA @ 277V
Subcategory: Molded Case Circuit Breaker

3VA5120-4ED12-1AA0 Compliance

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

3VA5120-4ED12-1AA0 Estimated Pricing

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1+ $0.99 $0.99

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

3VA5120-4ED12-1AA0 Features

  • 1-pole molded-case circuit breaker
  • 20A operational current rating
  • 25kA breaking capacity at 277V
  • DIN rail mounting type
  • UL489, HACR, HID, SWD approved

3VA5120-4ED12-1AA0 Applications

  • System protection applications
  • Heating, Air Conditioning, Refrigeration circuits
  • High-Intensity-Discharge lighting circuits
  • Switching Duty applications

3VA5120-4ED12-1AA0 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the rated operational current of the 3VA5120-4ED12-1AA0 circuit breaker?

The rated operational current is 20A at 40°C.

What is the breaking capacity of the Siemens 3VA5120-4ED12-1AA0 at 277V?

The breaking capacity at 277V is 25 kA.

What is the voltage rating for this circuit breaker?

The rated operating voltage is 415 V at AC.

How many poles does the 3VA5120-4ED12-1AA0 have?

This circuit breaker has 1 pole.

What type of mounting is used for this Siemens circuit breaker?

It is designed for DIN Rail mounting.

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The Siemens 3VA5120-6ED12-1AA0 is a 1-pole molded-case circuit breaker. It features a 20A operational current and a 50kA breaking capacity at 277V.
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