1170-21-D91-8A The E-T-A 1170-21-D91-8A is a compact, single-pole thermal circuit breaker designed for automotive applications. It features a push-to-reset mechanism and blade terminals for plug-in mounting.
Mfr Part #:

1170-21-D91-8A

Mfr Name: ETA
ETA
The E-T-A 1170-21-D91-8A is a compact, single-pole thermal circuit breaker designed for automotive applications. It features a push-to-reset mechanism and blade terminals for plug-in mounting.
Stock on Request
$ Price Range: $0.99

1170-21-D91-8A Specifications Quick View

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

1170-21-D91-8A Description

Short technical summary and product information.

This E-T-A 1170-21-D91-8A is a single-pole thermal circuit breaker with a push-to-reset, tease-free, and trip-free snap-action mechanism. It combines circuit breaker protection with a manual release.

 

Designed for extra-low voltage wiring systems in vehicles and marine craft, this breaker has blade terminals for plug-in mounting, conforming to DIN 72581 part 3 standards. It offers a current rating of 8A and a voltage rating of up to 48 VDC, with a maximum operating voltage of 58 VDC.

 

The breaker operates within an ambient temperature range of -40°C to 85°C. It meets Type III requirements per SAE J 553 and provides an interrupting capacity of 2000A at 24 VDC. The degree of protection for the operating area is IP40, and for the terminal area, it is IP00.

 

Environmental testing includes vibration resistance up to 10g, shock resistance of 50g, corrosion resistance for 96 hours in salt mist, and humidity testing for 240 hours at 95% RH. The breaker has a mass of approximately 10g.

1170-21-D91-8A Quick Information

Product Type: Circuit Breaker
Canonical Name: E-T-A 1170-21-D91-8A Thermal Automotive Circuit Breaker
Subcategory: Thermal Circuit Breaker

1170-21-D91-8A Compliance

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

1170-21-D91-8A Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

1170-21-D91-8A Features

  • Compact single pole thermal circuit breaker.
  • Push-to-reset, tease-free, trip-free mechanism.
  • Blade terminals for plug-in automotive fuse blocks.
  • Rated for 8A current and up to 48VDC.
  • IP40 protection for operating area.

1170-21-D91-8A Applications

  • Used in automotive wiring systems.
  • Suitable for marine craft applications.
  • Protects extra-low voltage circuits.
  • Designed for vehicle electrical systems.

1170-21-D91-8A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the E-T-A 1170-21-D91-8A circuit breaker?

The current rating is 8A.

What is the maximum voltage rating for this circuit breaker?

The voltage rating is 48 VDC, with a maximum operating voltage of 58 VDC.

What type of actuator does the 1170-21-D91-8A feature?

It features a push-to-reset actuator.

What is the operating temperature range for this thermal circuit breaker?

The ambient temperature range is -40°C to 85°C.

What is the degree of protection for the operating area of this breaker?

The degree of protection for the operating area is IP40.

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