3120-N321-P7T1-W01D-16A The E-T-A 3120-N321-P7T1-W01D-16A is a two-pole thermal circuit breaker designed for overcurrent protection. It features a 16A current rating and a 250VAC/50VDC voltage rating.
Mfr Part #:

3120-N321-P7T1-W01D-16A

Mfr Name: ETA
ETA
The E-T-A 3120-N321-P7T1-W01D-16A is a two-pole thermal circuit breaker designed for overcurrent protection. It features a 16A current rating and a 250VAC/50VDC voltage rating.
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3120-N321-P7T1-W01D-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
Mounting Type
Number of Poles
Voltage Rating

3120-N321-P7T1-W01D-16A Description

Short technical summary and product information.

The E-T-A 3120-N321-P7T1-W01D-16A is a thermal circuit breaker that combines overcurrent protection with the function of an ON/OFF switch. It utilizes a bimetal trip element for reliable operation and is suitable for overload protection of motors, pumps, transformers, and cables. This two-pole breaker has a current rating of 16A and a voltage rating of 250VAC or 50VDC.

 

Designed for panel mounting with a rocker actuator, this circuit breaker offers a positively trip-free mechanism ensuring reliable disconnection even with a blocked actuator. It can be easily and quickly reset after tripping. The internal resistance at 16A is less than 0.02 Ohms. Typical life expectancy is rated at 30,000 cycles for single-pole operation under specific conditions and 50,000 cycles for two-pole operation.

 

This thermal circuit breaker is suitable for various applications including medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, audio equipment, and machine tools. It holds approvals from CSA, GB, IEC, and UL.

3120-N321-P7T1-W01D-16A Quick Information

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

3120-N321-P7T1-W01D-16A Compliance

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

3120-N321-P7T1-W01D-16A Features

  • Two-pole thermal circuit breaker with switch function.
  • Rated for 16A current and 250VAC/50VDC voltage.
  • Panel mountable with a rocker actuator.
  • Positively trip-free mechanism for reliable disconnection.
  • Suitable for motor, pump, and transformer protection.

3120-N321-P7T1-W01D-16A Applications

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

3120-N321-P7T1-W01D-16A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of this circuit breaker?

250VAC and 50VDC.

What is the current rating?

16A.

What type of circuit breaker is this?

Thermal circuit breaker.

How many poles does this breaker have?

2 poles.

What mounting type does this breaker use?

Panel mount.

What certifications does this breaker have?

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

What is the typical life of this breaker?

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

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