3120-N521-N7T1-W14FR4-4A The E-T-A 3120-N521-N7T1-W14FR4-4A is a two-pole thermal circuit breaker designed for overcurrent protection. It features a 4A current rating and a 415V AC voltage rating.
Mfr Part #:

3120-N521-N7T1-W14FR4-4A

Mfr Name: ETA
ETA
The E-T-A 3120-N521-N7T1-W14FR4-4A is a two-pole thermal circuit breaker designed for overcurrent protection. It features a 4A current rating and a 415V AC voltage rating.
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$ Price Range: $0.99

3120-N521-N7T1-W14FR4-4A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Illumination Voltage (Nominal)
Mounting Type
Number of Poles
Voltage Rating

3120-N521-N7T1-W14FR4-4A Description

Short technical summary and product information.

The E-T-A 3120-N521-N7T1-W14FR4-4A is a two-pole thermal circuit breaker that combines overcurrent protection with the function of an ON/OFF switch. It utilizes a thermal-bimetal trip element for reliable operation.

 

This circuit breaker is rated for 4A and can handle up to 415V AC. It is designed for panel mounting and features a rocker actuator. The illumination is red with a nominal voltage of 230V.

 

Typical applications for this type of thermal circuit breaker include overload protection for motors, pumps, transformers, and cables. It is suitable for use in medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, audio equipment, and machine tools.

 

The 3120-N series offers features such as a positively trip-free mechanism for reliable disconnection, quick resettability after tripping, and expandable functionality with add-on modules.

3120-N521-N7T1-W14FR4-4A Quick Information

Product Type: Thermal Circuit Breaker
Series: 3120-N
Canonical Name: E-T-A 3120-N521-N7T1-W14FR4-4A Two-Pole Thermal Circuit Breaker
Subcategory: Thermal Circuit Breaker

3120-N521-N7T1-W14FR4-4A Compliance

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

3120-N521-N7T1-W14FR4-4A Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

3120-N521-N7T1-W14FR4-4A Features

  • Two-pole thermal circuit breaker switch.
  • Rated for 4A current and 415V AC.
  • Panel mount with rocker actuator.
  • Suitable for medical equipment.
  • Combines overcurrent protection and switch function.

3120-N521-N7T1-W14FR4-4A Applications

  • Ideal for motor overload protection.
  • Used in pumps and transformer protection.
  • Suitable for cable protection.
  • Applied in medical equipment.
  • Used in machine construction.

3120-N521-N7T1-W14FR4-4A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the E-T-A 3120-N521-N7T1-W14FR4-4A?

The current rating is 4A.

What is the voltage rating for this thermal circuit breaker?

The voltage rating is 415V AC.

How many poles does the 3120-N521-N7T1-W14FR4-4A have?

It has 2 poles.

What type of breaker is the 3120-N521-N7T1-W14FR4-4A?

It is a thermal circuit breaker.

What is the mounting type for this E-T-A circuit breaker?

The mounting type is Panel Mount.

Is the E-T-A 3120-N521-N7T1-W14FR4-4A RoHS compliant?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The MSL is 1 Unlimited.

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