449-K-H-FN-181802-500A The E-T-A 449-K-H-FN-181802-500A is a single-pole, thermal-magnetic circuit breaker designed for chassis mounting. It offers a high current rating of 500A at 28VDC.
Mfr Part #:

449-K-H-FN-181802-500A

Mfr Name: ETA
ETA
The E-T-A 449-K-H-FN-181802-500A is a single-pole, thermal-magnetic circuit breaker designed for chassis mounting. It offers a high current rating of 500A at 28VDC.
Stock on Request
$ Price Range: $0.99

449-K-H-FN-181802-500A 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
Insulation Resistance
Mounting Type
Number of Poles
Operating Temperature
Voltage Rating

449-K-H-FN-181802-500A Description

Short technical summary and product information.

This E-T-A 449 series circuit breaker is a single-pole, thermal-magnetic type with a press-to-reset mechanism. It is designed for surface mounting and features screw terminals.

 

Key electrical specifications include a current rating of 500A and a voltage rating of 28VDC. The breaker type is thermal-magnetic, ensuring reliable protection.

 

Typical applications for this series include heavy-duty vehicles, battery systems, and process control. The compact design and robust construction make it suitable for demanding environments.

 

The unit is chassis mounted and features a push-to-reset actuator. It operates within an ambient temperature range of -55 to +75 °C.

449-K-H-FN-181802-500A Quick Information

Product Type: Circuit Breaker
Series: 449
Canonical Name: E-T-A 449 Series Single Pole Thermal-Magnetic Circuit Breaker, 500A, 28VDC
Subcategory: Thermal Magnetic Circuit Breaker

449-K-H-FN-181802-500A Compliance

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

449-K-H-FN-181802-500A 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-181802-500A Features

  • Single-pole thermal-magnetic circuit breaker.
  • Rated for 500A current and 28VDC voltage.
  • Chassis mount with push-to-reset actuator.
  • Operates from -55 to +75 °C ambient temperature.
  • High interrupting capacity of 10,000A.

449-K-H-FN-181802-500A Applications

  • Ideal for heavy-duty vehicles.
  • Suitable for battery systems.
  • Used in process control applications.
  • Designed for demanding environments.

449-K-H-FN-181802-500A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the E-T-A 449-K-H-FN-181802-500A circuit breaker?

The current rating is 500A.

What is the voltage rating for this circuit breaker?

The voltage rating is 28VDC.

What type of actuator does the 449-K-H-FN-181802-500A have?

It has a push-to-reset actuator.

How many poles does this circuit breaker have?

It has 1 pole.

What is the operating temperature range for this circuit breaker?

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

What is the interrupting capacity of this thermal-magnetic circuit breaker?

The interrupting capacity is 10,000A.

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