DA2-B0-21-450-121-C The Littelfuse Inc. DA2-B0-21-450-121-C is a 2-pole circuit breaker featuring a magnetic hydraulic delay mechanism. It offers a 5A current rating and a 277V voltage rating.
Mfr Part #:

DA2-B0-21-450-121-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. DA2-B0-21-450-121-C is a 2-pole circuit breaker featuring a magnetic hydraulic delay mechanism. It offers a 5A current rating and a 277V voltage rating.
Stock on Request
$ Price Range: $0.99

DA2-B0-21-450-121-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
Voltage Rating

DA2-B0-21-450-121-C Description

Short technical summary and product information.

This Littelfuse Inc. DA2-B0-21-450-121-C is a 2-pole circuit breaker designed for reliable circuit protection. It utilizes a magnetic hydraulic delay mechanism, providing a current rating of 5A and a voltage rating of 277V.

 

The breaker features a lever actuator and is suitable for DIN rail mounting, making it convenient for panel installations. It is approved by CSA and UL agencies.

 

Key electrical specifications include a 5A current rating and a 277V voltage rating. The breaker type is magnetic with a hydraulic delay, and it has 2 poles. The actuator type is a lever, and it does not feature illumination. The RoHS status is RoHS3 Compliant, and the Moisture Sensitivity Level (MSL) is 1 Unlimited.

DA2-B0-21-450-121-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. DA2-B0-21-450-121-C Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

DA2-B0-21-450-121-C Compliance

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

DA2-B0-21-450-121-C Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

DA2-B0-21-450-121-C Features

  • 5A current rating for circuit protection.
  • 277V voltage rating for electrical systems.
  • Magnetic hydraulic delay breaker type.
  • DIN rail mounting for easy installation.
  • CSA and UL approval agency certified.

DA2-B0-21-450-121-C Applications

  • Used in electrical distribution panels.
  • Suitable for industrial control systems.
  • Applicable in commercial building wiring.
  • Provides overcurrent protection.
  • Ensures safety in power circuits.

DA2-B0-21-450-121-C FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the DA2-B0-21-450-121-C circuit breaker?

The current rating is 5A.

What is the voltage rating for this circuit breaker?

The voltage rating is 277V.

What type of breaker mechanism does the DA2-B0-21-450-121-C use?

It uses a Magnetic (Hydraulic Delay) breaker type.

How many poles does this circuit breaker have?

This circuit breaker has 2 poles.

What is the mounting type for this circuit breaker?

The mounting type is DIN Rail.

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