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BA1-B9-20-250-1K1-C The Littelfuse Inc. BA1-B9-20-250-1K1-C is a single-pole, panel mount circuit breaker. It features a magnetic hydraulic delay with a 500mA current rating and 277V voltage rating.
Mfr Part #:

BA1-B9-20-250-1K1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BA1-B9-20-250-1K1-C is a single-pole, panel mount circuit breaker. It features a magnetic hydraulic delay with a 500mA current rating and 277V voltage rating.
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BA1-B9-20-250-1K1-C 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-B9-20-250-1K1-C Description

Short technical summary and product information.

This Littelfuse Inc. BA1-B9-20-250-1K1-C is a single-pole circuit breaker designed for panel mounting. It utilizes a magnetic hydraulic delay mechanism to provide reliable overcurrent protection.

 

The breaker has a current rating of 500mA and a voltage rating of 277V, making it suitable for various applications. It is approved by CCC, CSA, and UL.

 

Key specifications include a lever actuator and no illumination. The RoHS status is RoHS3 Compliant, MSL is 1 Unlimited, and REACH status is Unaffected. These compliance details should be verified with official documentation.

 

This component is part of the broader circuit protection category, specifically within circuit breakers.

BA1-B9-20-250-1K1-C Quick Information

Product Type: Circuit Breaker
Series: BA1
Canonical Name: Littelfuse Inc. BA1-B9-20-250-1K1-C Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Circuit Breaker

BA1-B9-20-250-1K1-C Compliance

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

BA1-B9-20-250-1K1-C Features

  • Rated for 500mA continuous current.
  • Designed for 277V AC voltage.
  • Single pole circuit breaker configuration.
  • Magnetic hydraulic delay trip mechanism.
  • Panel mount with lever actuator.

BA1-B9-20-250-1K1-C Applications

  • Overcurrent protection in industrial control panels.
  • Suitable for lighting and power distribution.
  • Use in equipment requiring hydraulic delay.
  • Panel mount applications with lever actuation.

BA1-B9-20-250-1K1-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the BA1-B9-20-250-1K1-C?

500mA.

What is the voltage rating of the BA1-B9-20-250-1K1-C?

277V.

How many poles does this circuit breaker have?

1 pole.

What type of breaker is the BA1-B9-20-250-1K1-C?

Magnetic (hydraulic delay).

What is the actuator type?

Lever.

Is the BA1-B9-20-250-1K1-C illuminated?

No, it has no illumination.

What is the mounting type of this circuit breaker?

Panel mount.

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