3120-N521-P7T1-W02D-2A The E-T-A 3120-N521-P7T1-W02D-2A is a 2-pole thermal switch circuit breaker. It provides overcurrent protection.
Mfr Part #:

3120-N521-P7T1-W02D-2A

Mfr Name: ETA
ETA
The E-T-A 3120-N521-P7T1-W02D-2A is a 2-pole thermal switch circuit breaker. It provides overcurrent protection.
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3120-N521-P7T1-W02D-2A Specifications Quick View

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

3120-N521-P7T1-W02D-2A Description

Short technical summary and product information.

The E-T-A 3120-N521-P7T1-W02D-2A is a 2-pole circuit breaker that uses a thermal switch mechanism for overcurrent protection. It is designed for use in electrical circuits where reliable interruption of current is required. The device features two poles for switching both line and neutral or two phases. As a thermal circuit breaker, it responds to heat generated by excess current, providing a time-delayed trip characteristic. This component is part of E-T-A's 3120 series, known for compact design and robust construction.

3120-N521-P7T1-W02D-2A Quick Information

Product Type: Circuit Breaker
Canonical Name: 3120-N521-P7T1-W02D-2A E-T-A Thermal Switch Circuit Breaker
Subcategory: Thermal Switch Circuit Breaker

3120-N521-P7T1-W02D-2A Compliance

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

3120-N521-P7T1-W02D-2A Features

  • 2-pole thermal circuit breaker with rocker actuator.
  • Rated for 240V AC and 50V DC operation.
  • Panel mount design with 2A current rating.
  • Approved by CSA, KTL, UL, and VDE agencies.

3120-N521-P7T1-W02D-2A Applications

  • Overload protection for motors and pumps
  • Overcurrent protection for transformers and cables
  • Suitable for medical equipment per IEC 60601
  • Used in household and garden appliances
  • Protection for office and audio equipment

3120-N521-P7T1-W02D-2A FAQs

4 frequently asked questions generated from this part’s specifications.
What type of circuit breaker is this?

This is a 2-pole thermal switch circuit breaker.

How many poles does this circuit breaker have?

2 poles.

What is the part number?

3120-N521-P7T1-W02D-2A.

Who manufactures this circuit breaker?

E-T-A.

3120-N521-P7T1-W02D-2A Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
View All Alternate Parts
3120-N351-P7T1-W02F-2A
3120-N351-P7T1-W02F-2A
ETA
The E-T-A 3120-N351-P7T1-W02F-2A is a 2-pole thermal circuit breaker with a 2A current rating. It is designed for panel mounting and operates at up to 240V AC or 50V DC.
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