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DB2-B0-21-450-1B1-C The Littelfuse Inc. DB2-B0-21-450-1B1-C is a 2-pole circuit breaker featuring magnetic hydraulic delay. It is designed for DIN rail mounting.
Mfr Part #:

DB2-B0-21-450-1B1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. DB2-B0-21-450-1B1-C is a 2-pole circuit breaker featuring magnetic hydraulic delay. It is designed for DIN rail mounting.
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$ Price Range: $0.99

DB2-B0-21-450-1B1-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
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DB2-B0-21-450-1B1-C Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number DB2-B0-21-450-1B1-C, offers a current rating of 5A and a voltage rating of 277V. It is a 2-pole breaker with a magnetic (hydraulic delay) type and a lever actuator.

 

The breaker is designed for DIN rail mounting, making it suitable for various industrial and commercial applications requiring reliable circuit protection. It features a 'None' illumination type.

 

Environmental compliance includes RoHS3 status, MSL 1, and REACH unaffected. Approval agencies listed are CSA and UL, indicating adherence to safety standards.

DB2-B0-21-450-1B1-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. DB2-B0-21-450-1B1-C Circuit Breaker
Subcategory: Circuit Breaker

DB2-B0-21-450-1B1-C Compliance

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

DB2-B0-21-450-1B1-C Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

DB2-B0-21-450-1B1-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.
  • 2-pole configuration for circuit isolation.

DB2-B0-21-450-1B1-C Applications

  • Used for overcurrent protection.
  • Suitable for industrial control panels.
  • Applicable in power distribution systems.
  • Designed for equipment safety circuits.

DB2-B0-21-450-1B1-C FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the DB2-B0-21-450-1B1-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 is the DB2-B0-21-450-1B1-C?

It is a Magnetic (Hydraulic Delay) type breaker.

How many poles does this circuit breaker have?

This circuit breaker has 2 poles.

What is the mounting type for the DB2-B0-21-450-1B1-C?

The mounting type is DIN Rail.

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