449-K-H-FN-500A The E-T-A 449-K-H-FN-500A is a single-pole, thermal-magnetic circuit breaker rated for 500A and 28VDC. It features a push-to-reset actuator and chassis mounting.
Mfr Part #:

449-K-H-FN-500A

Mfr Name: ETA
ETA
The E-T-A 449-K-H-FN-500A is a single-pole, thermal-magnetic circuit breaker rated for 500A and 28VDC. It features a push-to-reset actuator and chassis mounting.
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$ Price Range: $0.99

449-K-H-FN-500A 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
Operating Temperature
Storage Temperature
Tape & Reel
Voltage Rating

449-K-H-FN-500A Description

Short technical summary and product information.

This E-T-A 449-K-H-FN-500A is a single-pole thermal-magnetic circuit breaker designed for high-current DC applications. It offers a robust 500A current rating and operates at up to 28VDC.

 

The breaker utilizes a thermal-magnetic tripping mechanism for reliable overcurrent protection. It features a convenient push-to-reset actuator for manual operation and is designed for chassis mounting, making it suitable for integration into various systems.

 

Typical applications for this type of circuit breaker include heavy-duty vehicles, battery systems, and process control equipment where dependable circuit protection is essential. The unit is built to withstand demanding environments, as indicated by its operating temperature range of -55 to +75 °C and an interrupting capacity of 10,000A.

 

Compliance information includes CSA C22.2 No 235 and UL1077 approvals. While RoHS, REACH, and MSL status are listed, these should be verified for critical applications.

449-K-H-FN-500A Quick Information

Product Type: Circuit Breaker
Canonical Name: E-T-A 449-K-H-FN-500A Thermal-Magnetic Circuit Breaker
Subcategory: Thermal Magnetic Circuit Breaker

449-K-H-FN-500A Compliance

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

449-K-H-FN-500A Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

449-K-H-FN-500A Features

  • Single-pole thermal-magnetic circuit breaker.
  • Rated for 500A and 28VDC operation.
  • Features a push-to-reset actuator.
  • Designed for chassis mounting.
  • Wide operating temperature range.

449-K-H-FN-500A Applications

  • Ideal for heavy-duty vehicle applications.
  • Suitable for battery system protection.
  • Used in process control equipment.
  • Provides reliable overcurrent protection.

449-K-H-FN-500A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the E-T-A 449-K-H-FN-500A circuit breaker?

The current rating is 500 A.

What is the voltage rating for this circuit breaker?

The voltage rating is 28 V.

What type of breaker is the 449-K-H-FN-500A?

It is a Thermal Magnetic circuit breaker.

How many poles does this circuit breaker have?

This circuit breaker has 1 pole.

What is the actuator type for the E-T-A 449-K-H-FN-500A?

The actuator type is Push to Reset.

What is the mounting type for this circuit breaker?

The mounting type is Chassis Mount.

What is the operating temperature range for this circuit breaker?

The operating temperature range is -55 to +75 °C.

449-K-H-FN-500A Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
View All Alternate Parts
449-S-H-FN-500A
449-S-H-FN-500A
ETA
The E-T-A 449-S-H-FN-500A is a single-pole, thermal-magnetic circuit breaker designed for 28V DC systems. It features a 500A current rating and a push-to-reset actuator.
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