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AA1-B0-34-620-2D1-C CIRCUIT BREAKER. 1-pole, magnetic hydraulic delay type, 20A, 277V, panel mount.
Mfr Part #:

AA1-B0-34-620-2D1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
CIRCUIT BREAKER. 1-pole, magnetic hydraulic delay type, 20A, 277V, panel mount.
Stock on Request

AA1-B0-34-620-2D1-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
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AA1-B0-34-620-2D1-C Description

Short technical summary and product information.

The Littelfuse AA1-B0-34-620-2D1-C is a single-pole magnetic hydraulic delay circuit breaker. It is rated for 20A continuous current at 277V AC. The breaker features a lever actuator and is designed for panel mount installation.

 

The magnetic hydraulic delay trip mechanism provides reliable overcurrent protection with precise time-current characteristics. This 1-pole configuration is suitable for individual branch circuit protection.

 

The circuit breaker is certified by CCC, CSA, and UL, ensuring compliance with major international safety standards.

AA1-B0-34-620-2D1-C Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: Littelfuse AA1-B0-34-620-2D1-C 20A 277V 1-Pole Magnetic Hydraulic Delay Circuit Breaker

AA1-B0-34-620-2D1-C Compliance

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

AA1-B0-34-620-2D1-C Features

  • Rated for 20A continuous current at 277V.
  • Single-pole magnetic hydraulic delay design.
  • Panel mount with lever actuator.
  • Certified by CCC, CSA, and UL.
  • 1-pole configuration for branch circuits.

AA1-B0-34-620-2D1-C Applications

  • Overcurrent protection for lighting circuits
  • Branch circuit protection in power panels
  • Motor protection with hydraulic delay
  • Industrial control panel circuit protection

AA1-B0-34-620-2D1-C FAQs

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

20A

What is the voltage rating?

277V

What type of ciruit breaker is this?

Magnetic hydraulic delay

How many poles does it have?

1

What is the actuator type?

Lever

What is the mounting type?

Panel mount

What approvals does it hold?

CCC, CSA, UL

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AA1-B0-24-620-3G1-C
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The Littelfuse Inc. AA1-B0-24-620-3G1-C is a 1-pole magnetic circuit breaker designed for panel mounting. It features a 20A current rating and a 277V voltage rating.
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The Littelfuse Inc. AA1-B0-24-620-2B2-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a panel mount design with a lever actuator.
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