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BA1-B4-12-630-221-D 30A, 277V, 1-pole magnetic (hydraulic delay) circuit breaker from Littelfuse Inc. Panel mount with lever actuator.
Mfr Part #:

BA1-B4-12-630-221-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
30A, 277V, 1-pole magnetic (hydraulic delay) circuit breaker from Littelfuse Inc. Panel mount with lever actuator.
Stock on Request

BA1-B4-12-630-221-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
SVHC Present
Voltage Rating
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BA1-B4-12-630-221-D Description

Short technical summary and product information.

This BA1-B4-12-630-221-D circuit breaker from Littelfuse Inc. is a single-pole magnetic hydraulic delay breaker rated for 30A continuous current at 277V. The hydraulic delay mechanism provides inverse time-current characteristics for reliable overcurrent protection. It features a panel mount design with a lever actuator and is not illuminated. The breaker is approved by CCC, CSA, UL, and VDE, making it suitable for a wide range of industrial and commercial applications. The magnetic design offers high immunity to ambient temperature variations, ensuring consistent trip performance across operating conditions.

BA1-B4-12-630-221-D Quick Information

Product Type: Circuit Breaker
Canonical Name: Magnetic Hydraulic Circuit Breaker, 30A, 277V, 1 Pole
Subcategory: Magnetic Circuit Breaker

BA1-B4-12-630-221-D Compliance

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

BA1-B4-12-630-221-D Features

  • Rated for 30A continuous current.
  • Operates at 277V AC/DC.
  • Magnetic hydraulic delay trip mechanism.
  • Single-pole configuration.
  • Panel mount with lever actuator.

BA1-B4-12-630-221-D Applications

  • Use in industrial control panels.
  • Overcurrent protection for lighting circuits.
  • Suitable for HVAC equipment.
  • Applicable in motor control centers.

BA1-B4-12-630-221-D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating?

30A

What is the voltage rating?

277V

What type of circuit breaker is this?

Magnetic (Hydraulic Delay)

How many poles does it have?

1

What is the mounting type?

Panel Mount

What is the actuator type?

Lever

What approvals does it have?

CCC, CSA, UL, VDE

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BA1-B0-16-630-522-D
BA1-B0-16-630-522-D
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The Littelfuse Inc. BA1-B0-16-630-522-D is a 1-pole circuit breaker designed for panel mounting. It features a 30A current rating and a 277V voltage rating.
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AA1-B0-14-630-M42-D
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The Littelfuse Inc. AA1-B0-14-630-M42-D is a single-pole, magnetic circuit breaker rated for 30A and 277V. It features a panel mount design with a lever actuator.
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The Littelfuse Inc. BA1-B0-12-630-C22-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 30A current rating and a 277V voltage rating.
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