3120-N521-N7T1-W14FR3-4A The E-T-A 3120-N521-N7T1-W14FR3-4A is a two-pole thermal circuit breaker designed for overcurrent protection and switch functionality. It features a 4A current rating and a 415V AC voltage rating.
Mfr Part #:

3120-N521-N7T1-W14FR3-4A

Mfr Name: ETA
ETA
The E-T-A 3120-N521-N7T1-W14FR3-4A is a two-pole thermal circuit breaker designed for overcurrent protection and switch functionality. It features a 4A current rating and a 415V AC voltage rating.
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$ Price Range: $0.99

3120-N521-N7T1-W14FR3-4A 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
Storage Temperature
Tape & Reel
Voltage
Voltage Rating

3120-N521-N7T1-W14FR3-4A Description

Short technical summary and product information.

The E-T-A 3120-N521-N7T1-W14FR3-4A is a thermal circuit breaker that combines overcurrent protection with an ON/OFF switch function. It utilizes a bimetal trip element for reliable operation.

 

This two-pole breaker is rated for 4A and can handle up to 415V AC. It features a panel mount design with a rocker actuator for easy operation. The illumination is red, operating at a nominal voltage of 115V.

 

Key applications include overload protection for motors, pumps, transformers, and cables. Its design ensures maximum equipment availability through overload protection matched to loads and quick resettability. The breaker is suitable for use in medical equipment according to IEC/EN 60601.

 

With a current rating range from 0.1 to 20A and various voltage ratings including AC 240V and DC 50V, this series offers flexibility. The typical life for a two-pole configuration at AC 240V is 50,000 cycles at 1x IN, inductive.

3120-N521-N7T1-W14FR3-4A Quick Information

Product Type: Thermal Circuit Breaker
Canonical Name: E-T-A 3120-N521-N7T1-W14FR3-4A Two-Pole Thermal Circuit Breaker
Subcategory: Thermal Circuit Breaker

3120-N521-N7T1-W14FR3-4A Compliance

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

3120-N521-N7T1-W14FR3-4A 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-W14FR3-4A Features

  • Two-pole thermal circuit breaker with switch function.
  • Rated for 4A current and 415V AC voltage.
  • Panel mount design with rocker actuator.
  • Suitable for medical equipment applications.
  • Reliable overload protection and quick reset.

3120-N521-N7T1-W14FR3-4A Applications

  • Ideal for motor and pump overload protection.
  • Used for transformer and cable protection.
  • Suitable for medical and laboratory equipment.
  • Applicable in machine construction and tools.
  • Designed for household and garden appliances.

3120-N521-N7T1-W14FR3-4A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the E-T-A 3120-N521-N7T1-W14FR3-4A circuit breaker?

The circuit breaker has a voltage rating of 415V AC.

What is the current rating of this thermal circuit breaker?

The current rating is 4A.

How many poles does the 3120-N521-N7T1-W14FR3-4A have?

This circuit breaker has 2 poles.

What type of breaker is the 3120-N521-N7T1-W14FR3-4A?

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-W14FR3-4A 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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