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AA1-B0-24-620-521-C The Littelfuse Inc. AA1-B0-24-620-521-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 277V voltage rating.
Mfr Part #:

AA1-B0-24-620-521-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AA1-B0-24-620-521-C 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-B0-24-620-521-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
SVHC Present
Voltage Rating
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AA1-B0-24-620-521-C Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number AA1-B0-24-620-521-C, is designed for panel mounting. It operates with a 20A current rating and a voltage rating of 277V.

 

The breaker type is magnetic with a hydraulic delay, and it has a single pole configuration. The actuator type is a lever, and it does not feature illumination.

 

Compliance information indicates RoHS3 compliance, MSL 1, and REACH unaffected status. Approval agencies include CCC, CSA, and UL.

AA1-B0-24-620-521-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. AA1-B0-24-620-521-C Circuit Breaker
Subcategory: Circuit Breakers

AA1-B0-24-620-521-C Compliance

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

AA1-B0-24-620-521-C Features

  • Panel mount circuit breaker design.
  • 20A current rating for protection.
  • 277V voltage rating capability.
  • Magnetic breaker with hydraulic delay.
  • Single pole configuration.

AA1-B0-24-620-521-C Applications

  • Used for overcurrent protection in lighting panels.
  • Ideal for commercial and industrial circuit protection.
  • Suitable for motor branch circuit protection.
  • Can be used in HVAC equipment control panels.

AA1-B0-24-620-521-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of AA1-B0-24-620-521-C?

277V.

What is the current rating?

20A.

How many poles does it have?

1 pole.

What is the breaker type?

Magnetic (Hydraulic Delay).

What is the actuator type?

Lever.

Does it have illumination?

No.

What mounting type is available?

Panel Mount.

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