AA1-B0-34-620-7B1-C The Littelfuse AA1-B0-34-620-7B1-C is a 1-pole magnetic circuit breaker rated for 20A at 277V. It features a hydraulic delay mechanism and a lever actuator for panel mount installation.
Mfr Part #:

AA1-B0-34-620-7B1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse AA1-B0-34-620-7B1-C is a 1-pole magnetic circuit breaker rated for 20A at 277V. It features a hydraulic delay mechanism and a lever actuator for panel mount installation.
Stock on Request

AA1-B0-34-620-7B1-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

AA1-B0-34-620-7B1-C Description

Short technical summary and product information.

The Littelfuse AA1-B0-34-620-7B1-C is a single-pole magnetic circuit breaker designed for overcurrent protection in electrical systems. It is rated for a continuous current of 20A and a maximum operating voltage of 277V AC. The breaker employs a magnetic hydraulic delay mechanism, providing time-delayed tripping for inrush currents while ensuring rapid response to sustained overloads and short circuits.

 

The circuit breaker features a lever actuator for manual reset and is designed for panel mount installation. It is non-illuminated, with no indicator light. The construction is suitable for industrial control panels, power distribution equipment, and building system protection applications.

 

Compliance information includes RoHS3 compliance and REACH unaffected status, though these are unverified and should be confirmed with official documentation. No datasheet is currently available for this part.

AA1-B0-34-620-7B1-C Quick Information

Product Type: Circuit Breaker
Canonical Name: AA1-B0-34-620-7B1-C
Subcategory: Magnetic Circuit Breaker

AA1-B0-34-620-7B1-C Compliance

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

AA1-B0-34-620-7B1-C Features

  • Rated for 20A continuous current.
  • Working voltage up to 277V AC.
  • Single pole magnetic hydraulic delay breaker.
  • Panel mount design with lever actuator.
  • No illumination; non-lighted actuator.

AA1-B0-34-620-7B1-C Applications

  • Used in power distribution panels.
  • Suitable for industrial control circuits.
  • Protects against overcurrent in building systems.
  • Ideal for equipment requiring hydraulic delay.

AA1-B0-34-620-7B1-C FAQs

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

20A.

What is the operating voltage rating?

277V AC.

What is the breaker type?

Magnetic (Hydraulic Delay).

How many poles does this breaker have?

1 pole.

What is the mounting type?

Panel mount.

Does this breaker have an illuminated actuator?

No, it has a non-illuminated lever actuator.

AA1-B0-34-620-7B1-C Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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AA1-B0-14-620-5D2-C
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The Littelfuse Inc. AA1-B0-14-620-5D2-C is a 1-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism.
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AA1-B0-24-620-5D3-C
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The Littelfuse Inc. AA1-B0-24-620-5D3-C is a magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 277V voltage rating.
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AA1-B0-14-620-3D2-C
AA1-B0-14-620-3D2-C
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The Littelfuse Inc. AA1-B0-14-620-3D2-C is a single-pole, magnetic (hydraulic delay) circuit breaker rated for 20A and 277V. It features a lever actuator and panel mount.
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AA1-B0-24-620-2A1-C
AA1-B0-24-620-2A1-C
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The Littelfuse Inc. AA1-B0-24-620-2A1-C is a 1-pole circuit breaker designed for panel mounting. It offers a 20A current rating and a 277V voltage rating.
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