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AA1-B2-14-620-1D7-D The Littelfuse Inc. AA1-B2-14-620-1D7-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a lever actuator.
Mfr Part #:

AA1-B2-14-620-1D7-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AA1-B2-14-620-1D7-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a lever actuator.
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AA1-B2-14-620-1D7-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
Industrial Grade
Mounting Type
Number of Poles
Voltage Rating
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AA1-B2-14-620-1D7-D Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number AA1-B2-14-620-1D7-D, is a single-pole device rated for 20A and 277V. It utilizes a magnetic (hydraulic delay) tripping mechanism for reliable protection.

 

The breaker is designed for panel mount, snap-in installation and features a lever actuator for operation. It is approved by CCC, CSA, UL, and VDE, indicating compliance with various international safety standards.

 

This component is suitable for applications requiring overcurrent protection where a 20A rating and 277V operating voltage are necessary. Its magnetic delay characteristic is beneficial in preventing nuisance tripping due to temporary current surges while ensuring protection against sustained overloads.

AA1-B2-14-620-1D7-D Quick Information

Product Type: Circuit Breaker
Series: AA1-B2
Canonical Name: Littelfuse Inc. AA1-B2-14-620-1D7-D Circuit Breaker

AA1-B2-14-620-1D7-D Compliance

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

AA1-B2-14-620-1D7-D Features

  • 20A current rating for protection.
  • 277V maximum voltage rating.
  • Magnetic hydraulic delay mechanism.
  • Panel mount, snap-in installation.
  • Lever actuator for operation.

AA1-B2-14-620-1D7-D Applications

  • General overcurrent protection.
  • Industrial control panels.
  • Power distribution systems.
  • Equipment protection circuits.

AA1-B2-14-620-1D7-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of this circuit breaker?

277V AC.

What is the current rating?

20A.

How many poles does this breaker have?

1 pole.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay) circuit breaker.

What mounting type is supported?

Panel mount, snap-in.

What actuator type does it use?

Lever.

What agency approvals does it hold?

CCC, CSA, UL, VDE.

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