3120-N521-P7T1-W04D-20A The E-T-A 3120-N521-P7T1-W04D-20A is a 2-pole thermal circuit breaker designed for overcurrent protection. It features a 20A current rating and a rocker actuator for panel mounting.
Mfr Part #:

3120-N521-P7T1-W04D-20A

Mfr Name: ETA
ETA
The E-T-A 3120-N521-P7T1-W04D-20A is a 2-pole thermal circuit breaker designed for overcurrent protection. It features a 20A current rating and a rocker actuator for panel mounting.
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$ Price Range: $0.99

3120-N521-P7T1-W04D-20A 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
Mounting Type
Number of Poles
Storage Temperature
Tape & Reel
Voltage Rating

3120-N521-P7T1-W04D-20A Description

Short technical summary and product information.

The E-T-A 3120-N521-P7T1-W04D-20A is a thermal circuit breaker and switch combination, offering both overcurrent protection and ON/OFF functionality. It is a 2-pole device with a 20A current rating and supports voltage ratings of 240 VAC and 50 VDC.

 

This circuit breaker is designed for overload protection of motors, pumps, transformers, and cables. It features a positively trip-free mechanism for reliable disconnection, even with a blocked actuator. The device can be easily and quickly reset after tripping.

 

With a panel mount design and a rocker actuator, the 3120-N521-P7T1-W04D-20A is suitable for various applications including apparatus and machine construction, professional tools, and household appliances. It is also suitable for use in medical equipment according to IEC/EN 60601.

 

Key specifications include a 20A current rating, 240 VAC / 50 VDC voltage rating, and a thermal breaker type. The approval agencies include CSA, KTL, UL, and VDE, indicating compliance with relevant safety standards.

3120-N521-P7T1-W04D-20A Quick Information

Product Type: Circuit Breaker
Series: 3120-N
Canonical Name: E-T-A 3120-N Series Thermal Circuit Breaker
Subcategory: Thermal Circuit Breaker

3120-N521-P7T1-W04D-20A Compliance

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

3120-N521-P7T1-W04D-20A 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-P7T1-W04D-20A Features

  • Two-pole thermal circuit breaker with switch function.
  • Rated for 20A current and 240 VAC / 50 VDC.
  • Panel mount design with a rocker actuator.
  • Suitable for medical equipment per IEC/EN 60601.
  • Approved by CSA, KTL, UL, and VDE.

3120-N521-P7T1-W04D-20A Applications

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

3120-N521-P7T1-W04D-20A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the E-T-A 3120-N521-P7T1-W04D-20A?

The current rating is 20A.

What are the voltage ratings for this thermal circuit breaker?

It is rated for 240 VAC and 50 VDC.

How many poles does the 3120-N521-P7T1-W04D-20A have?

This circuit breaker has 2 poles.

What type of actuator does this E-T-A circuit breaker use?

It features a rocker actuator.

What mounting type is specified for the 3120-N521-P7T1-W04D-20A?

The mounting type is Panel Mount.

Which approval agencies have certified this circuit breaker?

It is approved by CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077.

3120-N521-P7T1-W04D-20A Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
View All Alternate Parts
3120-N303-N7Q1-W01D-20A
3120-N303-N7Q1-W01D-20A
ETA
The E-T-A 3120-N303-N7Q1-W01D-20A is a two-pole thermal circuit breaker designed for overcurrent protection and switch functionality. It features a 20A current rating and supports panel mounting.
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