AT1-B2-11-620-5D1-MK The Littelfuse Inc. AT1-B2-11-620-5D1-MK is a 1-pole circuit breaker with a 20A current rating and 277V voltage rating. It features a magnetic hydraulic delay mechanism and panel mount.
Mfr Part #:

AT1-B2-11-620-5D1-MK

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. AT1-B2-11-620-5D1-MK is a 1-pole circuit breaker with a 20A current rating and 277V voltage rating. It features a magnetic hydraulic delay mechanism and panel mount.
Stock on Request
$ Price Range: $0.99

AT1-B2-11-620-5D1-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-B2-11-620-5D1-MK Description

Short technical summary and product information.

This Littelfuse Inc. AT1-B2-11-620-5D1-MK is a single-pole circuit breaker designed for panel mounting. It offers a current rating of 20A and a voltage rating of 277V.

 

The breaker type is magnetic with a hydraulic delay, providing specific protection characteristics. The actuator type is a lever, allowing for easy operation.

 

Key specifications include a 20A current rating and a 277V voltage rating. The mounting type is panel mount, suitable for integration into various enclosures and systems. The breaker is designed with a single pole.

 

Approval agencies include CCC, UL489A, and VDE, indicating compliance with relevant safety standards. The RoHS status is RoHS3 Compliant, and the Moisture Sensitivity Level (MSL) is 1 Unlimited.

AT1-B2-11-620-5D1-MK Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. AT1-B2-11-620-5D1-MK Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Circuit Breaker

AT1-B2-11-620-5D1-MK Compliance

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

AT1-B2-11-620-5D1-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-B2-11-620-5D1-MK Features

  • 20A current rating for power distribution.
  • 277V voltage rating for AC applications.
  • Panel mount for easy integration.
  • Magnetic hydraulic delay mechanism.
  • Single-pole circuit protection.

AT1-B2-11-620-5D1-MK Applications

  • Suitable for industrial control panels.
  • Used in power distribution systems.
  • Ideal for equipment protection.
  • Applicable in commercial buildings.

AT1-B2-11-620-5D1-MK FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the AT1-B2-11-620-5D1-MK circuit breaker?

The current rating is 20A.

What is the voltage rating for this circuit breaker?

The voltage rating is 277V.

What type of breaker is the AT1-B2-11-620-5D1-MK?

It is a Magnetic (Hydraulic Delay) breaker type.

How many poles does this circuit breaker have?

This is a 1-pole circuit breaker.

What is the mounting type for the AT1-B2-11-620-5D1-MK?

The mounting type is Panel Mount.

Is the AT1-B2-11-620-5D1-MK RoHS compliant?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The Moisture Sensitivity Level is 1 Unlimited.

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