AA1-B0-12-620-1T2-D The Littelfuse Inc. AA1-B0-12-620-1T2-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 277V voltage rating.
Mfr Part #:

AA1-B0-12-620-1T2-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-12-620-1T2-D 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-B0-12-620-1T2-D 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

AA1-B0-12-620-1T2-D Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number AA1-B0-12-620-1T2-D, 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. Approval agencies include CCC, CSA, UL, and VDE.

 

Key electrical specifications include its 20A current capacity and 277V operating voltage. The breaker type is magnetic with a hydraulic delay, suitable for applications requiring specific trip characteristics. Its single-pole configuration makes it ideal for single-phase circuits.

 

The mounting type is panel mount, ensuring secure installation in control panels and enclosures. The actuator is a standard lever for easy operation. Compliance is indicated by approvals from CCC, CSA, UL, and VDE.

AA1-B0-12-620-1T2-D Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: Littelfuse Inc. AA1-B0-12-620-1T2-D Circuit Breaker
Subcategory: Circuit Breaker

AA1-B0-12-620-1T2-D Compliance

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

AA1-B0-12-620-1T2-D Features

  • 20A current rating for reliable protection.
  • 277V voltage rating for industrial use.
  • 1-pole magnetic hydraulic delay breaker.
  • Panel mount lever actuator design.
  • CCC, CSA, UL, VDE agency approvals.

AA1-B0-12-620-1T2-D Applications

  • Used for overcurrent protection in industrial control panels.
  • Ideal for motor branch circuit protection.
  • Suitable for lighting and power distribution.
  • Protects sensitive equipment from short circuits.
  • Common in panel board and switchgear applications.

AA1-B0-12-620-1T2-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the AA1-B0-12-620-1T2-D circuit breaker?

277V.

What is the mounting type for this circuit breaker?

Panel mount.

What is the current rating of the AA1-B0-12-620-1T2-D?

20A.

How many poles does this circuit breaker have?

1 pole.

What type of breaker is the AA1-B0-12-620-1T2-D?

Magnetic hydraulic delay.

What actuator type does this circuit breaker use?

Lever actuator.

What safety approvals does the AA1-B0-12-620-1T2-D have?

It is approved by CCC, CSA, UL, and VDE.

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The Littelfuse Inc. AA1-B0-14-620-H22-D is a magnetic hydraulic delay circuit breaker. It features a 20A current rating and 277V voltage rating.
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