141120 The OptiFuse 141120 is a 120A, 42VDC Type I auto-reset circuit breaker designed for heavy-duty, waterproof applications. It features a panel mount design and IP67 ingress protection.
Mfr Part #:

141120

Mfr Name: OptiFuse
OptiFuse
The OptiFuse 141120 is a 120A, 42VDC Type I auto-reset circuit breaker designed for heavy-duty, waterproof applications. It features a panel mount design and IP67 ingress protection.
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141120 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Automotive Grade
Body Material
Current Rating
Current Rating (Amps)
Illumination
Ingress Protection
Mounting Type
Number of Poles
Voltage Rating

141120 Description

Short technical summary and product information.

The OptiFuse 141120 is a high amperage, heavy-duty, and waterproof circuit breaker. It is designed with a Type I auto-reset mechanism and a current rating of 120A at a maximum voltage of 42VDC.

 

This circuit breaker is built for demanding environments, featuring an IP67 ingress protection rating, making it suitable for applications where water and dust resistance are critical. The body is constructed from thermoset plastic (UL94V-0) with nickel-plated terminals, ensuring durability and corrosion resistance.

 

Mounting is facilitated via a panel mount design, and it adheres to industry standards including SAE J553, IEC 60934, and SAE J1171. The operating temperature range is -32°C to 82°C, providing reliable performance across various conditions. Its interrupting rating is 3000A at 30VDC (ABYC E-11).

 

Key specifications include a 1-pole configuration and automatic reset functionality. The OptiFuse 141120 is an ideal choice for applications requiring robust overcurrent protection in harsh environments.

141120 Quick Information

Product Type: Circuit Breaker
Canonical Name: OptiFuse 141120 High Amperage Heavy Duty Waterproof Circuit Breaker
Subcategory: High Amperage

141120 Compliance

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

141120 Features

  • 120A current rating for high power circuits.
  • 42VDC maximum voltage rating.
  • Type I auto-reset circuit breaker.
  • IP67 waterproof and dustproof rating.
  • Durable thermoset plastic construction.

141120 Applications

  • Marine electrical system overcurrent protection.
  • Automotive high-current DC circuit protection.
  • Industrial battery and power distribution systems.
  • RVs and off-road vehicle electrical systems.
  • Solar and energy storage disconnect applications.

141120 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the OptiFuse 141120 circuit breaker?

42VDC.

What is the mounting type of the 141120 circuit breaker?

Panel mount.

What is the operating temperature range of the 141120 circuit breaker?

-32°C to 82°C.

What is the current rating of the 141120 circuit breaker?

120A.

What is the interrupting rating of the 141120 circuit breaker?

3000A at 30VDC.

What type of reset does the 141120 circuit breaker have?

Type I automatic reset.

What safety approvals does the 141120 circuit breaker hold?

SAEJ1171, SAEJ1625, and UL.

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