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AA1-B0-12-450-5B2-D The Littelfuse Inc. AA1-B0-12-450-5B2-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 5A current rating and a 277V voltage rating.
Mfr Part #:

AA1-B0-12-450-5B2-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-12-450-5B2-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 5A current rating and a 277V voltage rating.
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AA1-B0-12-450-5B2-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
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AA1-B0-12-450-5B2-D Description

Short technical summary and product information.

This Littelfuse Inc. AA1-B0-12-450-5B2-D is a single-pole circuit breaker designed for panel mounting. It operates with a magnetic hydraulic delay mechanism, providing reliable protection.

 

The breaker has a current rating of 5A and a voltage rating of 277V. It is approved by multiple agencies including CCC, CSA, UL, and VDE, ensuring compliance with various industry standards.

 

Key specifications include a lever actuator type and no illumination. The component is RoHS3 compliant, has an MSL of 1 Unlimited, and is REACH unaffected. Its robust design makes it suitable for various protection applications.

AA1-B0-12-450-5B2-D Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: Littelfuse Inc. AA1-B0-12-450-5B2-D Circuit Breaker
Subcategory: Circuit Breaker

AA1-B0-12-450-5B2-D Compliance

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

AA1-B0-12-450-5B2-D Features

  • Single-pole magnetic hydraulic delay breaker.
  • Rated for 5A current and 277V voltage.
  • Panel mount design for easy integration.
  • Approved by CCC, CSA, UL, and VDE.
  • RoHS3 compliant and MSL 1.

AA1-B0-12-450-5B2-D Applications

  • Suitable for general circuit protection.
  • Used in systems requiring 5A current.
  • Applicable in 277V electrical systems.
  • Ideal for panel-mounted applications.

AA1-B0-12-450-5B2-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the AA1-B0-12-450-5B2-D?

277V AC.

What is the mounting type of this circuit breaker?

Panel Mount.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does this breaker have?

1.

What safety approvals does this breaker have?

CCC, CSA, UL, VDE.

What type of actuator does it use?

Lever.

What is the current rating?

5A.

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