3120-F321-H7T1-W19DG4-8A The E-T-A 3120-F321-H7T1-W19DG4-8A is a 2-pole thermal circuit breaker with an 8A current rating and 250VAC/50VDC voltage rating. It features a rocker actuator and panel mount design.
Mfr Part #:

3120-F321-H7T1-W19DG4-8A

Mfr Name: ETA
ETA
The E-T-A 3120-F321-H7T1-W19DG4-8A is a 2-pole thermal circuit breaker with an 8A current rating and 250VAC/50VDC voltage rating. It features a rocker actuator and panel mount design.
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$ Price Range: $0.99

3120-F321-H7T1-W19DG4-8A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Ambient Temperature
Approval Agency
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Illumination Voltage (Nominal)
Insulation Resistance
Mounting Type
Number of Poles
Storage Temperature
Tape & Reel
Voltage
Voltage Rating

3120-F321-H7T1-W19DG4-8A Description

Short technical summary and product information.

The E-T-A 3120-F321-H7T1-W19DG4-8A is a thermal circuit breaker designed for overload protection. It functions as an ON/OFF switch with integral overcurrent protection, utilizing a bimetal trip element.

 

This 2-pole breaker has a current rating of 8A and can handle voltages up to 250VAC or 50VDC. It features a rocker actuator for easy operation and a panel mount design for secure installation. The breaker is approved by CSA, GB, IEC, and UL standards.

 

Key technical data includes a rated voltage of 240 VAC and 50 VDC, with a current rating range from 0.1 to 20 A. It offers a typical life of 30,000 operations at 1x IN inductive load. The operating ambient temperature range is -30 to 60 °C. It also provides a degree of protection of IP40 in the operating area and IP00 at the terminal area.

 

Typical applications for this circuit breaker include medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, audio equipment, and machine tools. Options such as illumination, water splash protection, and auxiliary contacts can be added.

3120-F321-H7T1-W19DG4-8A Quick Information

Product Type: Thermal Circuit Breaker
Canonical Name: E-T-A Thermal Circuit Breaker, 8A, 250VAC/50VDC, 2-Pole
Subcategory: Thermal

3120-F321-H7T1-W19DG4-8A Compliance

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

3120-F321-H7T1-W19DG4-8A Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

3120-F321-H7T1-W19DG4-8A Features

  • Thermal circuit breaker with 8A rating.
  • 250VAC/50VDC voltage rating.
  • Two-pole configuration.
  • Rocker actuator and panel mount.
  • Approved by CSA, IEC, and UL.

3120-F321-H7T1-W19DG4-8A Applications

  • Ideal for motor overload protection.
  • Suitable for transformer protection.
  • Used for cable protection.
  • Applicable in medical equipment.
  • Designed for machine construction.

3120-F321-H7T1-W19DG4-8A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the E-T-A 3120-F321-H7T1-W19DG4-8A circuit breaker?

The current rating is 8A.

What are the voltage ratings for this thermal circuit breaker?

It has a voltage rating of 250 VAC and 50 VDC.

How many poles does the 3120-F321-H7T1-W19DG4-8A circuit breaker have?

This circuit breaker has 2 poles.

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

It uses a rocker actuator.

What is the mounting type for the 3120-F321-H7T1-W19DG4-8A?

The mounting type is Panel Mount.

What is the operating temperature range for this circuit breaker?

The ambient temperature range is -30 to 60 °C.

What are the approval agencies for the E-T-A 3120-F321-H7T1-W19DG4-8A?

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

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