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AA1-B0-14-650-521-D The Littelfuse Inc. AA1-B0-14-650-521-D is a single-pole, magnetic (hydraulic delay) circuit breaker. It features a 50A current rating and a 277V voltage rating.
Mfr Part #:

AA1-B0-14-650-521-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-14-650-521-D is a single-pole, magnetic (hydraulic delay) circuit breaker. It features a 50A current rating and a 277V voltage rating.
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AA1-B0-14-650-521-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-B0-14-650-521-D Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number AA1-B0-14-650-521-D, is designed for panel mounting. It operates as a single-pole breaker with a magnetic (hydraulic delay) mechanism.

 

The electrical specifications include a current rating of 50A and a voltage rating of 277V. The actuator type is a lever, and it offers no illumination.

 

Compliance includes RoHS3, MSL 1, and REACH Unaffected, though these are noted as low confidence due to unverified status. Approval agencies include CCC, CSA, UL, and VDE.

AA1-B0-14-650-521-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. AA1-B0-14-650-521-D Circuit Breaker

AA1-B0-14-650-521-D Compliance

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

AA1-B0-14-650-521-D Features

  • 50A current rating for robust protection.
  • 277V voltage rating for diverse applications.
  • Panel mount design for easy integration.
  • Magnetic (hydraulic delay) breaker type.
  • Single-pole configuration for simple circuits.

AA1-B0-14-650-521-D Applications

  • Suitable for industrial control panels.
  • Used in power distribution systems.
  • Applicable in commercial building circuits.
  • Ideal for equipment protection.

AA1-B0-14-650-521-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the AA1-B0-14-650-521-D?

50A.

What is the voltage rating of the AA1-B0-14-650-521-D?

277V.

How many poles does the AA1-B0-14-650-521-D have?

1 pole.

What type of circuit breaker is the AA1-B0-14-650-521-D?

Magnetic (Hydraulic Delay).

What is the actuator type of the AA1-B0-14-650-521-D?

Lever.

What is the mounting type of the AA1-B0-14-650-521-D?

Panel Mount.

Does the AA1-B0-14-650-521-D have illumination?

No, it does not have illumination.

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