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AA1-B0-26-620-5N1-C This Littelfuse AA1-B0-26-620-5N1-C is a 20A, 1-pole magnetic hydraulic delay circuit breaker rated for 277V with panel mount lever actuation.
Mfr Part #:

AA1-B0-26-620-5N1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
This Littelfuse AA1-B0-26-620-5N1-C is a 20A, 1-pole magnetic hydraulic delay circuit breaker rated for 277V with panel mount lever actuation.
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AA1-B0-26-620-5N1-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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AA1-B0-26-620-5N1-C Description

Short technical summary and product information.

The Littelfuse AA1-B0-26-620-5N1-C is a single-pole magnetic circuit breaker featuring hydraulic delay for overcurrent protection. It is rated for 20A continuous current at 277V AC, making it suitable for branch circuit protection in industrial and commercial power distribution systems.

 

The breaker uses a magnetic (hydraulic delay) trip mechanism, which provides time-delayed response to overcurrent conditions, reducing nuisance tripping from transient surges. The panel mount design with a lever actuator allows for easy manual reset and on/off control. This unit is non-illuminated and carries approvals from CCC, CSA, and UL.

AA1-B0-26-620-5N1-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. AA1-B0-26-620-5N1-C Circuit Breaker

AA1-B0-26-620-5N1-C Compliance

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

AA1-B0-26-620-5N1-C Features

  • Single-pole magnetic hydraulic delay circuit breaker.
  • Rated for 20A continuous current at 277V.
  • Panel mount design with lever actuator.
  • Approved by CCC, CSA, and UL.
  • Non-illuminated actuator for simple operation.

AA1-B0-26-620-5N1-C Applications

  • Used in industrial control panel protection.
  • Suitable for commercial lighting circuit protection.
  • Ideal for motor branch circuit overcurrent protection.
  • Applied in power distribution equipment.

AA1-B0-26-620-5N1-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the AA1-B0-26-620-5N1-C circuit breaker?

The current rating is 20A.

What is the voltage rating of this circuit breaker?

The operating voltage is 277V.

What type of breaker mechanism does the AA1-B0-26-620-5N1-C use?

It uses a magnetic (hydraulic delay) mechanism.

How many poles does this circuit breaker have?

It has 1 pole.

What is the mounting type for this circuit breaker?

It is panel mount.

What approvals does the AA1-B0-26-620-5N1-C hold?

It is approved by CCC, CSA, and UL.

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