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CA1-B2-12-450-A21-C Littelfuse CA1-B2-12-450-A21-C is a single-pole magnetic (hydraulic delay) circuit breaker rated at 5A and 480V. It features a lever actuator and panel mount design.
Mfr Part #:

CA1-B2-12-450-A21-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse CA1-B2-12-450-A21-C is a single-pole magnetic (hydraulic delay) circuit breaker rated at 5A and 480V. It features a lever actuator and panel mount design.
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CA1-B2-12-450-A21-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
Voltage Rating
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CA1-B2-12-450-A21-C Description

Short technical summary and product information.

The Littelfuse CA1-B2-12-450-A21-C is a single-pole magnetic (hydraulic delay) circuit breaker designed for overcurrent protection in industrial and commercial applications. It is rated for 5A continuous current at 480V, providing reliable interruption of fault currents.

 

The hydraulic delay mechanism offers time-delayed tripping to handle temporary inrush currents without nuisance tripping, while ensuring fast response to sustained overloads. The lever actuator provides manual ON/OFF control and is non-illuminated.

 

The breaker is designed for panel mount installation and carries approvals from CCC, CSA, and UL. It is suitable for use in control panels, power distribution systems, and equipment requiring robust circuit protection.

CA1-B2-12-450-A21-C Quick Information

Product Type: Circuit Breaker
Series: CA1
Canonical Name: CA1-B2-12-450-A21-C 1-Pole Magnetic Hydraulic Delay Circuit Breaker, 5A 480V
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

CA1-B2-12-450-A21-C Compliance

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

CA1-B2-12-450-A21-C Features

  • Rated for 5A continuous current.
  • Operates at 480V AC/DC.
  • Single-pole magnetic hydraulic delay design.
  • Lever actuator for manual control.
  • Panel mount with CCC, CSA, UL approvals.

CA1-B2-12-450-A21-C Applications

  • Overcurrent protection for industrial control panels.
  • Motor circuit protection in automation equipment.
  • Panel mount circuit breaker for power distribution.
  • Protects wiring and loads from short circuits.
  • Hydraulic-magnetic delay for precise trip characteristics.

CA1-B2-12-450-A21-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating?

5A.

What is the voltage rating?

480V.

How many poles does this circuit breaker have?

1 pole.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

What is the actuator type?

Lever.

Is the breaker illuminated?

No, it is non-illuminated.

What approvals does this breaker have?

CCC, CSA, UL.

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