351120 The OptiFuse 351120 is a 120A, 48VDC Type I auto-reset circuit breaker designed for heavy-duty, high-amp applications. It features a waterproof design and surface mount capability.
Mfr Part #:

351120

Mfr Name: OptiFuse
OptiFuse
The OptiFuse 351120 is a 120A, 48VDC Type I auto-reset circuit breaker designed for heavy-duty, high-amp applications. It features a waterproof design and surface mount capability.
Stock on Request
$ Price Range: $0.99

351120 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Body Material
Current Rating
Current Rating (Amps)
Ingress Protection
Mounting Type
Number of Poles
Operating Temperature
Storage Temperature
Tape & Reel
Voltage Rating

351120 Description

Short technical summary and product information.

The OptiFuse 351120 is a robust circuit breaker engineered for demanding applications requiring high current protection. With a 120A current rating and a 48VDC voltage rating, this device is suitable for heavy-duty use.

 

This circuit breaker features an automatic reset function (Type I) and a waterproof construction, ensuring reliable operation in harsh environments. It is designed for surface mounting and utilizes a 3/8”-16 stud terminal configuration for secure connections.

 

The breaker's body is constructed from thermoset plastic with a UL94V-0 flammability rating, and its terminals are nickel-plated for durability. It meets SAE J1171 ignition protection standards and offers an IP67 ingress protection rating, making it suitable for automotive and marine applications.

 

Key specifications include a 3000A interrupting rating at 30VDC and an operating temperature range of -32°C to 82°C. The mounting torque is specified at a maximum of 24 N.m, with stud torque at 30.5 N.m.

351120 Quick Information

Product Type: Circuit Breaker
Series: 351
Canonical Name: OptiFuse 351120 Heavy Duty High Amp Waterproof Circuit Breaker
Subcategory: Automotive Circuit Breaker

351120 Compliance

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

351120 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

351120 Features

  • Heavy duty 120A, 48VDC circuit breaker.
  • Type I automatic reset function.
  • Waterproof design for harsh environments.
  • Surface mount with 3/8”-16 stud terminal.
  • UL94V-0 rated thermoset plastic body.

351120 Applications

  • Ideal for automotive electrical systems.
  • Suitable for marine power distribution.
  • Used in heavy-duty equipment protection.
  • Provides reliable circuit interruption.
  • Ensures safety in high-amp circuits.

351120 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the OptiFuse 351120 circuit breaker?

The OptiFuse 351120 circuit breaker has a current rating of 120A.

What is the voltage rating for the OptiFuse 351120 circuit breaker?

The voltage rating for the OptiFuse 351120 circuit breaker is 48VDC.

Does the OptiFuse 351120 circuit breaker have an automatic reset?

Yes, the OptiFuse 351120 circuit breaker features a Type I automatic reset.

What is the operating temperature range for this circuit breaker?

The operating temperature range for the OptiFuse 351120 circuit breaker is -32°C to 82°C.

What is the ingress protection rating of the OptiFuse 351120?

The OptiFuse 351120 circuit breaker has an IP67 ingress protection rating.

What is the mounting torque specification for the OptiFuse 351120?

The mounting torque for the OptiFuse 351120 circuit breaker is a maximum of 24 N.m.

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