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DA1-B0-24-225-121-D Littelfuse DA1-B0-24-225-121-D is a 1-pole magnetic hydraulic delay circuit breaker rated for 250mA at 277V. It features a lever actuator and DIN rail mounting.
Mfr Part #:

DA1-B0-24-225-121-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse DA1-B0-24-225-121-D is a 1-pole magnetic hydraulic delay circuit breaker rated for 250mA at 277V. It features a lever actuator and DIN rail mounting.
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DA1-B0-24-225-121-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
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DA1-B0-24-225-121-D Description

Short technical summary and product information.

This is a circuit breaker from Littelfuse, part of the DA1 series. It is a single-pole magnetic hydraulic delay type breaker with a current rating of 250mA and voltage rating of 277V. The actuator is a lever type and it is not illuminated.

 

The breaker is designed for DIN rail mounting, making it suitable for industrial control panels and distribution boards. It has approvals from CSA, VDE, and UL, ensuring compliance with international standards.

 

The magnetic hydraulic delay mechanism provides precise overcurrent protection with time delay characteristics, ideal for applications with inrush currents. The compact 1-pole design allows for space-efficient installation.

DA1-B0-24-225-121-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse DA1-B0-24-225-121-D Magnetic Hydraulic Delay Circuit Breaker, 250mA, 277V, 1 Pole, DIN Rail
Subcategory: Magnetic Hydraulic Delay Circuit Breaker

DA1-B0-24-225-121-D Compliance

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

DA1-B0-24-225-121-D Features

  • Magnetic hydraulic delay trip mechanism.
  • Rated for 250mA at 277V.
  • Single-pole DIN rail mount design.
  • Lever actuator for manual operation.
  • Approved by CSA, VDE, and UL.

DA1-B0-24-225-121-D Applications

  • Used in industrial control panel protection.
  • Suitable for distribution board branch circuits.
  • Ideal for applications with inrush currents.

DA1-B0-24-225-121-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating?

250mA.

What is the voltage rating?

277V.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does it have?

1 pole.

What is the actuator type?

Lever.

What mounting type does it use?

DIN Rail.

What approvals does it have?

CSA, VDE, UL.

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