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AA1-B0-34-620-1G1-C AA1-B0-34-620-1G1-C is a 20A, 277V single-pole magnetic (hydraulic delay) circuit breaker from Littelfuse Inc. It features panel mount installation and lever actuation.
Mfr Part #:

AA1-B0-34-620-1G1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
AA1-B0-34-620-1G1-C is a 20A, 277V single-pole magnetic (hydraulic delay) circuit breaker from Littelfuse Inc. It features panel mount installation and lever actuation.
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AA1-B0-34-620-1G1-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-B0-34-620-1G1-C Description

Short technical summary and product information.

The AA1-B0-34-620-1G1-C is a magnetic (hydraulic delay) circuit breaker manufactured by Littelfuse Inc. It is rated for 20A continuous current at 277V AC. This single-pole device utilizes a hydraulic-magnetic trip mechanism, providing precise overload protection with temperature stability. The breaker features a lever actuator and is designed for panel mount installation. It holds approvals from CCC, CSA, and UL, ensuring compliance with international safety standards. This circuit breaker is suitable for applications requiring reliable current interruption in electrical distribution, industrial control panels, and power supply systems. The compact single-pole design allows for space-efficient mounting in control cabinets. The hydraulic delay characteristic provides time-delay trip response to inrush currents while maintaining fast short-circuit protection.

AA1-B0-34-620-1G1-C Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: AA1-B0-34-620-1G1-C Magnetic (Hydraulic Delay) Circuit Breaker, 20A, 277V, 1 Pole, Panel Mount

AA1-B0-34-620-1G1-C Compliance

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

AA1-B0-34-620-1G1-C Features

  • 20A continuous current rating.
  • 277V AC voltage rating.
  • Single pole magnetic hydraulic delay.
  • Lever actuator for manual operation.
  • Panel mount installation design.

AA1-B0-34-620-1G1-C Applications

  • Used in power distribution equipment.
  • Ideal for industrial control panels.
  • Protects circuits up to 20A at 277V.
  • Single-pole design saves panel space.

AA1-B0-34-620-1G1-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the AA1-B0-34-620-1G1-C?

20A

What is the voltage rating of this circuit breaker?

277V

What type of circuit breaker is the AA1-B0-34-620-1G1-C?

Magnetic (Hydraulic Delay)

How many poles does it have?

1

What is the actuator type?

Lever

What approvals does the AA1-B0-34-620-1G1-C hold?

CCC, CSA, UL

What mounting type is supported?

Panel Mount

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