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A21-B0-34-650-5A1-C The Littelfuse A21-B0-34-650-5A1-C is a panel mount circuit breaker rated for 50A at 277V. It features a magnetic hydraulic delay mechanism and rocker actuator.
Mfr Part #:

A21-B0-34-650-5A1-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse A21-B0-34-650-5A1-C is a panel mount circuit breaker rated for 50A at 277V. It features a magnetic hydraulic delay mechanism and rocker actuator.
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A21-B0-34-650-5A1-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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A21-B0-34-650-5A1-C Description

Short technical summary and product information.

The Littelfuse A21-B0-34-650-5A1-C is a 1-pole magnetic hydraulic delay circuit breaker designed for panel mount installation. It is rated for 50A continuous current at 277V and uses a non-illuminated rocker actuator. This breaker provides reliable overcurrent protection with a precise time-delay characteristic suited for moderate inrush applications. It holds agency approvals from CCC, CSA, and UL.

A21-B0-34-650-5A1-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse A21-B0-34-650-5A1-C Magnetic Hydraulic Delay Circuit Breaker, 50A, 277V, 1 Pole, Panel Mount
Subcategory: Circuit Breakers

A21-B0-34-650-5A1-C Compliance

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

A21-B0-34-650-5A1-C Features

  • 50A current rating for 277V operation.
  • Single pole magnetic hydraulic delay breaker.
  • Panel mount with rocker actuator design.
  • Approved by CCC, CSA, and UL.
  • Non-illuminated rocker actuator for control.

A21-B0-34-650-5A1-C Applications

  • Overcurrent protection for industrial control panels.
  • Branch circuit protection in commercial power systems.
  • Lighting circuit protection for 277V commercial lighting.
  • Panelmounted circuit breaker for equipment protection.

A21-B0-34-650-5A1-C FAQs

6 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the A21-B0-34-650-5A1-C?

277V.

What is the mounting type?

Panel mount.

What is the current rating?

50A.

What type of circuit breaker is this?

Magnetic (Hydraulic Delay).

How many poles does it have?

1.

What is the actuator type?

Rocker.

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