3120-N521-P7T1-W19LG4-16A The E-T-A 3120-N521-P7T1-W19LG4-16A is a 2-pole thermal circuit breaker designed for panel mounting. It features a 16A current rating and a 415V voltage rating.
Mfr Part #:

3120-N521-P7T1-W19LG4-16A

Mfr Name: ETA
ETA
The E-T-A 3120-N521-P7T1-W19LG4-16A is a 2-pole thermal circuit breaker designed for panel mounting. It features a 16A current rating and a 415V voltage rating.
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3120-N521-P7T1-W19LG4-16A 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
SVHC Present
Voltage Rating

3120-N521-P7T1-W19LG4-16A Description

Short technical summary and product information.

The E-T-A 3120-N521-P7T1-W19LG4-16A 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 and is suitable for overload protection of motors, pumps, transformers, and cables. The breaker can be easily and quickly reset after tripping, and its positively trip-free mechanism ensures reliable disconnection even with a blocked actuator.

 

This model features a 16A current rating and a voltage rating of up to 415V AC. It is designed for panel mounting and has a rocker actuator. The illumination is green with a nominal voltage of 230V. The circuit breaker is approved by CSA, GB, IEC, and UL standards.

 

Typical applications for this series include medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, audio equipment, and machine tools. The device offers features such as quick resettability and a space-saving design, contributing to increased overall reliability and reduced mounting and wiring time.

3120-N521-P7T1-W19LG4-16A Quick Information

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

3120-N521-P7T1-W19LG4-16A Compliance

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

3120-N521-P7T1-W19LG4-16A Features

  • Two-pole thermal circuit breaker switch combination.
  • Rated for 16A current and up to 415V AC.
  • Panel mount design with rocker actuator.
  • Suitable for motor and transformer overload protection.
  • Approved by CSA, IEC, and UL standards.

3120-N521-P7T1-W19LG4-16A Applications

  • Ideal for motor and pump protection.
  • Used in apparatus and machine construction.
  • Suitable for medical equipment applications.
  • Applicable to household and garden appliances.
  • Used in audio equipment and machine tools.

3120-N521-P7T1-W19LG4-16A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the 3120-N521-P7T1-W19LG4-16A?

The circuit breaker is rated for 240V AC and 50V DC.

What is the current rating?

The breaker is rated for 16A with an operating range of 0.1 to 20A.

What type of circuit breaker is this?

It is a thermal circuit breaker.

How many poles does it have?

It is a 2-pole circuit breaker.

What is the mounting type?

Panel mount.

What approvals does it have?

CSA C22.2 No 235, GB 17701, IEC 60934, UL1077.

What is the typical life of the breaker?

30,000 cycles at 1xIN inductive for 1-pole, 50,000 cycles for 2-pole.

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