AA1-B0-12-430-222-MK AA1-B0-12-430-222-MK is a 1-pole magnetic hydraulic delay circuit breaker rated at 3A and 277V. It features a lever actuator and panel mount design.
Mfr Part #:

AA1-B0-12-430-222-MK

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
AA1-B0-12-430-222-MK is a 1-pole magnetic hydraulic delay circuit breaker rated at 3A and 277V. It features a lever actuator and panel mount design.
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AA1-B0-12-430-222-MK 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

AA1-B0-12-430-222-MK Description

Short technical summary and product information.

The AA1-B0-12-430-222-MK is a 1-pole magnetic hydraulic delay circuit breaker from Littelfuse Inc. It is rated for 3A continuous current at 277V AC/DC. The breaker uses a magnetic hydraulic delay mechanism for precise overcurrent protection with time delay characteristics.

 

This circuit breaker is panel mounted and operated by a lever actuator. It is non-illuminated and designed for reliable circuit protection in industrial and commercial applications. The breaker is certified by CCC, UL489A, and VDE, ensuring compliance with international safety standards.

 

The magnetic hydraulic delay design provides immunity to ambient temperature variations and offers predictable trip performance. The single-pole configuration makes it suitable for protecting individual branch circuits or equipment.

AA1-B0-12-430-222-MK Quick Information

Product Type: Circuit Breaker
Series: AA1
Canonical Name: AA1-B0-12-430-222-MK Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic Hydraulic Delay Circuit Breaker

AA1-B0-12-430-222-MK Compliance

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

AA1-B0-12-430-222-MK Features

  • Rated 3A at 277V AC/DC.
  • Single pole magnetic hydraulic delay.
  • Panel mount with lever actuator.
  • Certified CCC, UL489A, VDE.
  • Non-illuminated design.

AA1-B0-12-430-222-MK Applications

  • Overcurrent protection for branch circuits.
  • Industrial control panel protection.
  • Commercial equipment power distribution.
  • Protection for lighting and HVAC systems.

AA1-B0-12-430-222-MK FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the AA1-B0-12-430-222-MK?

The current rating is 3A.

What is the voltage rating of this circuit breaker?

The voltage rating is 277V.

What type of breaker is the AA1-B0-12-430-222-MK?

It is a magnetic hydraulic delay circuit breaker.

How many poles does this breaker have?

It has 1 pole.

What is the mounting type for this breaker?

Panel mount.

What approvals does this circuit breaker have?

CCC, UL489A, and VDE.

AA1-B0-12-430-222-MK Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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AA1-B0-12-430-122-MK
AA1-B0-12-430-122-MK
Littelfuse Inc.
The Littelfuse AA1-B0-12-430-122-MK is a 1-pole magnetic hydraulic delay circuit breaker rated for 3A at 277V. It features a lever actuator and is designed for panel mount installation.
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