AT1-B2-11-650-521-MK The Littelfuse Inc. AT1-B2-11-650-521-MK is a single-pole, magnetic hydraulic delay circuit breaker. It features a 50A current rating and a 277V voltage rating.
Mfr Part #:

AT1-B2-11-650-521-MK

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AT1-B2-11-650-521-MK is a single-pole, magnetic hydraulic delay circuit breaker. It features a 50A current rating and a 277V voltage rating.
Stock on Request
$ Price Range: $0.99

AT1-B2-11-650-521-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

AT1-B2-11-650-521-MK Description

Short technical summary and product information.

This Littelfuse Inc. AT1-B2-11-650-521-MK is a single-pole circuit breaker designed for panel mounting. It utilizes a magnetic hydraulic delay mechanism for reliable operation.

 

Key electrical specifications include a current rating of 50A and a voltage rating of 277V. The actuator type is a lever, and it features no illumination.

 

This circuit breaker is suitable for applications requiring robust protection and clear indication of status. Its panel mount design facilitates integration into various electrical enclosures and control panels.

AT1-B2-11-650-521-MK Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. AT1-B2-11-650-521-MK Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Circuit Breaker

AT1-B2-11-650-521-MK Compliance

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

AT1-B2-11-650-521-MK Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

AT1-B2-11-650-521-MK Features

  • Single-pole magnetic hydraulic delay breaker.
  • Rated for 50A current.
  • Rated for 277V voltage.
  • Panel mount design.
  • Lever actuator type.

AT1-B2-11-650-521-MK Applications

  • Used in electrical distribution panels
  • Provides overcurrent protection
  • Suitable for industrial systems
  • Installed in commercial electrical setups

AT1-B2-11-650-521-MK FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the AT1-B2-11-650-521-MK circuit breaker?

The current rating is 50A.

What is the voltage rating for this circuit breaker?

The voltage rating is 277V.

What type of breaker is the AT1-B2-11-650-521-MK?

It is a Magnetic (Hydraulic Delay) breaker.

How many poles does this circuit breaker have?

It has 1 pole.

What is the mounting type for this circuit breaker?

The mounting type is Panel Mount.

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