BA1-B0-12-450-12H-D Littelfuse BA1-B0-12-450-12H-D is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 5A at 277V. It features a lever actuator and panel mount design.
Mfr Part #:

BA1-B0-12-450-12H-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse BA1-B0-12-450-12H-D is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 5A at 277V. It features a lever actuator and panel mount design.
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BA1-B0-12-450-12H-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

BA1-B0-12-450-12H-D Description

Short technical summary and product information.

The Littelfuse BA1-B0-12-450-12H-D is a single-pole magnetic circuit breaker utilizing a hydraulic delay mechanism for overcurrent protection. It is rated for a continuous current of 5A at a maximum voltage of 277V AC/DC. The magnetic hydraulic delay design provides predictable time-current characteristics, making it suitable for applications requiring precise overload protection.

 

This circuit breaker features a lever actuator for manual on/off control and is designed for panel mount installation. It is non-illuminated and carries approvals from CCC, CSA, UL, and VDE, indicating compliance with major international safety standards. The part is RoHS3 compliant and unaffected by REACH, with an MSL of 1 (unlimited).

BA1-B0-12-450-12H-D Quick Information

Product Type: Circuit Breaker
Canonical Name: BA1-B0-12-450-12H-D Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Magnetic (Hydraulic Delay) Circuit Breaker

BA1-B0-12-450-12H-D Compliance

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

BA1-B0-12-450-12H-D Features

  • Rated for 5A continuous current at 277V.
  • Single-pole magnetic hydraulic delay mechanism.
  • Panel mount design with lever actuator.
  • Approved by CCC, CSA, UL, and VDE.
  • RoHS3 compliant and REACH unaffected.

BA1-B0-12-450-12H-D Applications

  • Overcurrent protection for lighting circuits.
  • Branch circuit protection in panel boards.
  • Motor control circuit protection applications.
  • Suitable for industrial control panels.
  • Protection for HVAC equipment circuits.

BA1-B0-12-450-12H-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the BA1-B0-12-450-12H-D circuit breaker?

The BA1-B0-12-450-12H-D has a current rating of 5A.

What is the voltage rating of this Littelfuse circuit breaker?

The voltage rating is 277V.

What type of circuit breaker is the BA1-B0-12-450-12H-D?

It is a magnetic (hydraulic delay) circuit breaker.

How many poles does the BA1-B0-12-450-12H-D have?

It is a single-pole (1-pole) circuit breaker.

What is the actuator type on this circuit breaker?

The actuator type is a lever.

What mounting type does the BA1-B0-12-450-12H-D use?

It uses a panel mount.

What agency approvals does the BA1-B0-12-450-12H-D hold?

It is approved by CCC, CSA, UL, and VDE.

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