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AY1-B0-12-450-121-MC Single-pole magnetic hydraulic delay circuit breaker rated at 5A and 277V. Panel mount with slide switch actuator.
Mfr Part #:

AY1-B0-12-450-121-MC

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Single-pole magnetic hydraulic delay circuit breaker rated at 5A and 277V. Panel mount with slide switch actuator.
Stock on Request

AY1-B0-12-450-121-MC 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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AY1-B0-12-450-121-MC Description

Short technical summary and product information.

The AY1-B0-12-450-121-MC is a single-pole magnetic circuit breaker with hydraulic delay from Littelfuse. It is rated for 5A continuous current and 277V operation. The hydraulic delay mechanism provides time-delayed overcurrent protection.

 

The circuit breaker features a slide switch actuator and is designed for panel mount installation. It has no illumination indicator. The panel mount design allows for easy integration into control panels and distribution equipment. The single-pole configuration is suitable for protecting a single phase or branch circuit.

AY1-B0-12-450-121-MC Quick Information

Product Type: Circuit Breaker
Canonical Name: AY1-B0-12-450-121-MC Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

AY1-B0-12-450-121-MC Compliance

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

AY1-B0-12-450-121-MC Features

  • Rated for 5A continuous current.
  • Rated for 277V operation.
  • Single-pole magnetic hydraulic delay design.
  • Panel mount with slide switch actuator.
  • No illumination indicator.

AY1-B0-12-450-121-MC Applications

  • Branch circuit protection in panels.
  • Overcurrent protection for lighting loads.
  • Protection of motor control circuits.
  • Industrial control equipment protection.

AY1-B0-12-450-121-MC FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the AY1-B0-12-450-121-MC?

5A

What is the voltage rating?

277V

What type of circuit breaker is this?

Magnetic (Hydraulic Delay)

How many poles does it have?

1 pole

What is the actuator type?

Slide switch

Does it have illumination?

No, it has no illumination.

What is the mounting type?

Panel mount

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