DA1-B0-26-250-121-D The Littelfuse Inc. DA1-B0-26-250-121-D is a single-pole magnetic hydraulic delay circuit breaker. It features a 500mA current rating and a 277V voltage rating.
Mfr Part #:

DA1-B0-26-250-121-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. DA1-B0-26-250-121-D is a single-pole magnetic hydraulic delay circuit breaker. It features a 500mA current rating and a 277V voltage rating.
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DA1-B0-26-250-121-D 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

DA1-B0-26-250-121-D Description

Short technical summary and product information.

This Littelfuse Inc. DA1-B0-26-250-121-D is a magnetic hydraulic delay circuit breaker designed for reliable circuit protection. It operates with a current rating of 500mA and a voltage rating of 277V.

 

The breaker features a single pole configuration and a lever actuator for easy operation. It is designed for DIN rail mounting, making it suitable for various industrial and control panel applications.

 

Key specifications include a 500mA current rating and a 277V voltage rating, with approval from CSA, VDE, and UL agencies. The breaker type is magnetic with a hydraulic delay mechanism, and it has no illumination.

 

This component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1. It is suitable for applications requiring dependable overcurrent protection in a compact and easily mountable form factor.

DA1-B0-26-250-121-D Quick Information

Product Type: Circuit Breaker
Series: DA1
Canonical Name: Littelfuse Inc. DA1-B0-26-250-121-D Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay)

DA1-B0-26-250-121-D Compliance

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

DA1-B0-26-250-121-D Features

  • 500mA current rating for protection.
  • 277V voltage rating for power systems.
  • Magnetic hydraulic delay breaker type.
  • DIN rail mounting for easy installation.
  • CSA, VDE, UL approved for safety.

DA1-B0-26-250-121-D Applications

  • Used in control panel assemblies.
  • Suitable for industrial automation.
  • Ideal for power distribution units.
  • Applicable in machine tool controls.

DA1-B0-26-250-121-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Littelfuse DA1-B0-26-250-121-D?

The current rating is 500mA (0.5 A).

What is the voltage rating of this circuit breaker?

The voltage rating is 277V.

What type of breaker is the DA1-B0-26-250-121-D?

It is a magnetic (hydraulic delay) type circuit breaker.

How many poles does the DA1-B0-26-250-121-D have?

It has 1 pole.

What mounting method does this circuit breaker use?

It mounts on a DIN rail.

What type of actuator does the DA1-B0-26-250-121-D use?

It uses a lever actuator.

What agency approvals does the DA1-B0-26-250-121-D have?

It is approved by CSA, VDE, and UL.

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