CA1-B0-16-450-121-C Littelfuse CA1-B0-16-450-121-C is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 5A at 480V. It features a lever actuator and panel mount design.
Mfr Part #:

CA1-B0-16-450-121-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse CA1-B0-16-450-121-C is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 5A at 480V. It features a lever actuator and panel mount design.
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CA1-B0-16-450-121-C 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
SVHC Present
Voltage Rating

CA1-B0-16-450-121-C Description

Short technical summary and product information.

The Littelfuse CA1-B0-16-450-121-C is a single-pole magnetic circuit breaker with hydraulic delay, designed for overcurrent protection in a variety of applications. It is rated for 5A continuous current and 480V AC/DC, making it suitable for branch circuit protection in industrial control panels, power distribution equipment, and HVAC systems.

 

The breaker uses a lever actuator for manual on/off control and resets automatically after a fault condition clears. Its panel mount design allows for easy installation into standard cutouts. The hydraulic delay mechanism provides time-delayed tripping, which helps prevent nuisance trips from transient inrush currents while still offering fast response to sustained overloads.

 

This model carries approvals from UL, CSA, and CCC, indicating compliance with North American and Chinese safety standards. The RoHS3 compliance status is noted but unverified.

CA1-B0-16-450-121-C Quick Information

Product Type: Circuit Breaker
Series: CA1
Canonical Name: Littelfuse CA1-B0-16-450-121-C Magnetic (Hydraulic Delay) Circuit Breaker, 5A, 480V, 1-Pole, Panel Mount
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

CA1-B0-16-450-121-C Compliance

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

CA1-B0-16-450-121-C Features

  • Rated for 5A continuous current.
  • Rated for 480V AC/DC operation.
  • Single-pole magnetic hydraulic delay design.
  • Panel mount with lever actuator.
  • UL, CSA, and CCC approved.

CA1-B0-16-450-121-C Applications

  • Overcurrent protection for industrial control panels.
  • Branch circuit protection in power distribution.
  • Motor circuit protection for single-phase loads.
  • Panel mount circuit breaker for equipment.

CA1-B0-16-450-121-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the CA1-B0-16-450-121-C?

The CA1-B0-16-450-121-C is rated for 5A continuous current.

What is the voltage rating of this circuit breaker?

It is rated for 480V AC/DC.

How many poles does this breaker have?

This is a single-pole (1-pole) circuit breaker.

What type of actuator does this breaker use?

It uses a lever actuator for manual on/off control.

What mounting type is this circuit breaker?

It is designed for panel mount installation.

What safety approvals does this breaker have?

It is approved by UL, CSA, and CCC.

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