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BA1-B0-12-620-121-D The Littelfuse Inc. BA1-B0-12-620-121-D is a single-pole circuit breaker designed for panel mounting. It offers a 20A current rating and a 277V voltage rating.
Mfr Part #:

BA1-B0-12-620-121-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BA1-B0-12-620-121-D is a single-pole circuit breaker designed for panel mounting. It offers a 20A current rating and a 277V voltage rating.
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BA1-B0-12-620-121-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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BA1-B0-12-620-121-D Description

Short technical summary and product information.

This Littelfuse Inc. BA1-B0-12-620-121-D is a single-pole circuit breaker with a magnetic hydraulic delay mechanism. It is designed for panel mounting and features a lever actuator.

 

The breaker has an electrical rating of 20 Amps and 277 Volts. It is approved by multiple agencies including CCC, CSA, UL, and VDE.

 

Environmental compliance includes RoHS3 compliance and a Moisture Sensitivity Level (MSL) of 1. The REACH status is unaffected.

 

This component is suitable for applications requiring reliable overcurrent protection in a panel-mounted configuration.

BA1-B0-12-620-121-D Quick Information

Product Type: Circuit Breaker
Series: BA1
Canonical Name: Littelfuse Inc. BA1-B0-12-620-121-D Magnetic (Hydraulic Delay) Circuit Breaker

BA1-B0-12-620-121-D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: No

BA1-B0-12-620-121-D Features

  • 20A current rating for protection.
  • 277V voltage rating for power circuits.
  • Magnetic hydraulic delay for specific tripping.
  • Panel mount design for easy integration.
  • Single pole configuration for simple circuits.

BA1-B0-12-620-121-D Applications

  • Used in industrial control panels.
  • Suitable for power distribution units.
  • Applicable in equipment protection.
  • Ideal for safety interlock systems.

BA1-B0-12-620-121-D FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the BA1-B0-12-620-121-D?

20A

What is the voltage rating?

277V

How many poles does this circuit breaker have?

1 pole

What type of actuator does it use?

Lever actuator

What is the breaker type?

Magnetic (Hydraulic Delay)

What is the mounting style?

Panel mount

BA1-B0-12-620-121-D Alternate Parts

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BA1-B0-14-620-412-D
BA1-B0-14-620-412-D
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The Littelfuse Inc. BA1-B0-14-620-412-D is a panel mount circuit breaker with a 20A current rating and 277V AC voltage rating. It utilizes a magnetic (hydraulic delay) mechanism.
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AA1-B0-54-620-192-D
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Single pole, 20A, 277V magnetic hydraulic delay circuit breaker from Littelfuse. Panel mount with lever actuator, suitable for overcurrent protection in various applications.
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The Littelfuse Inc. AA1-B2-12-620-192-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 20A current rating and a 277V voltage rating.
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