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AA1-B0-26-620-3B1-C The Littelfuse Inc. AA1-B0-26-620-3B1-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 277V voltage rating.
Mfr Part #:

AA1-B0-26-620-3B1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-26-620-3B1-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 277V voltage rating.
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AA1-B0-26-620-3B1-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-B0-26-620-3B1-C Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number AA1-B0-26-620-3B1-C, is designed for circuit protection applications. It operates as a single-pole breaker with a magnetic (hydraulic delay) mechanism.

 

The breaker has a current rating of 20A and a voltage rating of 277V. It is designed for panel mounting and features a lever actuator for operation. The illumination is listed as none.

 

Compliance information indicates RoHS3 compliance, MSL 1 Unlimited, and REACH unaffected status, though these are noted as low confidence without verification.

 

Approval agencies include CCC, CSA, and UL, suggesting broad applicability in various regions and industries.

AA1-B0-26-620-3B1-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. AA1-B0-26-620-3B1-C Circuit Breaker
Subcategory: Circuit Breaker

AA1-B0-26-620-3B1-C Compliance

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

AA1-B0-26-620-3B1-C Features

  • 20A current rating for circuit protection.
  • 277V voltage rating for electrical systems.
  • Magnetic hydraulic delay breaker type.
  • Single pole, lever actuator design.
  • Panel mount for easy installation.

AA1-B0-26-620-3B1-C Applications

  • Used in commercial lighting circuits.
  • Protects HVAC equipment branch circuits.
  • Ideal for motor control centers.
  • Suitable for 277V line-to-neutral systems.
  • Provides overcurrent protection in control panels.

AA1-B0-26-620-3B1-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the AA1-B0-26-620-3B1-C?

277V.

What is the current rating of the AA1-B0-26-620-3B1-C?

20A.

What type of circuit breaker is the AA1-B0-26-620-3B1-C?

Magnetic (Hydraulic Delay) circuit breaker.

How many poles does the AA1-B0-26-620-3B1-C have?

1 pole.

What actuator type does the AA1-B0-26-620-3B1-C use?

Lever actuator.

What is the mounting type of the AA1-B0-26-620-3B1-C?

Panel mount.

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