BA1-B0-12-630-221-D Littelfuse BA1-B0-12-630-221-D is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 30A at 277V AC. It features panel mount, lever actuator, and no illumination.
Mfr Part #:

BA1-B0-12-630-221-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse BA1-B0-12-630-221-D is a 1-pole magnetic (hydraulic delay) circuit breaker rated for 30A at 277V AC. It features panel mount, lever actuator, and no illumination.
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BA1-B0-12-630-221-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-B0-12-630-221-D Description

Short technical summary and product information.

The Littelfuse BA1-B0-12-630-221-D is a single-pole magnetic circuit breaker with hydraulic delay. It is rated for 30A continuous current and 277V AC voltage. The breaker uses a magnetic actuation mechanism with hydraulic time delay, providing reliable overcurrent protection. The panel mount design with a lever actuator allows for easy manual reset. It is non-illuminated. This circuit breaker is suitable for various industrial and commercial applications where compact, resettable circuit protection is needed. Hydraulic-magnetic breakers are inherently insensitive to ambient temperature, offering stable performance across a wide temperature range. The single-pole configuration is ideal for protecting individual branch circuits or equipment.

BA1-B0-12-630-221-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse BA1-B0-12-630-221-D Magnetic Circuit Breaker
Subcategory: Hydraulic-Magnetic Circuit Breaker

BA1-B0-12-630-221-D Compliance

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

BA1-B0-12-630-221-D Features

  • 30A rated current for continuous operation.
  • 277V AC voltage rating.
  • Magnetic (hydraulic delay) tripping mechanism.
  • Single-pole design for branch circuit protection.
  • Panel mount with easy-to-use lever actuator.

BA1-B0-12-630-221-D Applications

  • Use in electrical distribution panels for overcurrent protection.
  • Suitable for industrial control equipment.
  • Ideal for commercial lighting and HVAC circuits.
  • Can be used in marine and RV applications.

BA1-B0-12-630-221-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the BA1-B0-12-630-221-D circuit breaker?

The voltage rating is 277V AC.

What is the current rating of this circuit breaker?

The current rating is 30A.

How many poles does the BA1-B0-12-630-221-D have?

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

What type of mounting does this circuit breaker use?

It uses panel mount.

What actuator type does the BA1-B0-12-630-221-D have?

The actuator type is a lever.

Is this circuit breaker illuminated?

No, it has no illumination.

What is the breaker type of the Littelfuse BA1-B0-12-630-221-D?

It is a Magnetic (Hydraulic Delay) circuit breaker.

BA1-B0-12-630-221-D Alternate Parts

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BA1-B0-14-630-412-D
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The Littelfuse Inc. BA1-B0-14-630-412-D is a single-pole, panel mount circuit breaker. It features a magnetic hydraulic delay mechanism and a 30A current rating.
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BA1-B0-14-630-522-D
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The Littelfuse Inc. BA1-B0-14-630-522-D is a 1-pole, magnetic hydraulic delay circuit breaker. It features a 30A current rating and a 277V voltage rating.
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