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BT1-B2-52-430-121-D The Littelfuse Inc. BT1-B2-52-430-121-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 3A current rating.
Mfr Part #:

BT1-B2-52-430-121-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BT1-B2-52-430-121-D is a single-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 3A current rating.
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BT1-B2-52-430-121-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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BT1-B2-52-430-121-D Description

Short technical summary and product information.

This Littelfuse Inc. circuit breaker, part number BT1-B2-52-430-121-D, is a single-pole device with a magnetic hydraulic delay type. It is rated for a current of 3A and a voltage of 277V.

 

The breaker is designed for panel mounting and features a lever actuator. It has no illumination.

 

Compliance information indicates RoHS3 compliance, MSL 1, and REACH unaffected status, though these are currently unverified.

 

Approval agencies include CCC, CSA, UL, and VDE.

BT1-B2-52-430-121-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. BT1-B2-52-430-121-D Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Circuit Breaker

BT1-B2-52-430-121-D Compliance

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

BT1-B2-52-430-121-D Features

  • 3A current rating for protection.
  • 277V voltage rating.
  • Magnetic hydraulic delay type.
  • Single-pole design.
  • Panel mount type.

BT1-B2-52-430-121-D Applications

  • Overcurrent protection for lighting circuits.
  • Used in industrial control panels.
  • Suitable for power distribution systems.
  • Protects branch circuits in buildings.
  • Ideal for motor control applications.

BT1-B2-52-430-121-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the BT1-B2-52-430-121-D?

277V.

What is the current rating?

3A.

How many poles does this breaker have?

1 pole.

What type of breaker is this?

Magnetic hydraulic delay.

What actuator type is used?

Lever.

Does the breaker have illumination?

No.

What is the mounting type for this circuit breaker?

Panel mount.

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