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BB4-A0-03-650-521-C The Littelfuse Inc. BB4-A0-03-650-521-C is a 4-pole circuit breaker designed for panel mounting. It features a 50A current rating and a 277V voltage rating.
Mfr Part #:

BB4-A0-03-650-521-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. BB4-A0-03-650-521-C is a 4-pole circuit breaker designed for panel mounting. It features a 50A current rating and a 277V voltage rating.
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$ Price Range: $0.99

BB4-A0-03-650-521-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
Storage Temperature
Tape & Reel
Voltage Rating
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BB4-A0-03-650-521-C Description

Short technical summary and product information.

This Littelfuse Inc. BB4-A0-03-650-521-C is a circuit breaker with a current rating of 50A and a voltage rating of 277V. It is designed for panel mounting and features a lever actuator.

 

As a switch-only breaker, it provides circuit protection without additional functions. The unit has 4 poles and is illuminated with 'None'. It is approved by CCC, CSA, and UL.

 

The RoHS status is reported as RoHS3 Compliant, and the Moisture Sensitivity Level (MSL) is 1 Unlimited. The REACH status is REACH Unaffected. These compliance details are based on available data and may require verification.

BB4-A0-03-650-521-C Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. BB4-A0-03-650-521-C Circuit Breaker

BB4-A0-03-650-521-C Compliance

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

BB4-A0-03-650-521-C Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

BB4-A0-03-650-521-C Features

  • 50A current rating for robust protection.
  • 277V voltage rating suitable for various applications.
  • 4-pole configuration for multi-circuit control.
  • Panel mount design for easy installation.
  • Lever actuator for simple operation.

BB4-A0-03-650-521-C Applications

  • Ideal for industrial control panels.
  • Suitable for power distribution systems.
  • Used in equipment requiring circuit protection.
  • Applicable in systems with 277V requirements.

BB4-A0-03-650-521-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the BB4-A0-03-650-521-C circuit breaker?

The current rating is 50A.

What is the voltage rating for this Littelfuse circuit breaker?

The voltage rating is 277V.

How many poles does the BB4-A0-03-650-521-C have?

It has 4 poles.

What type of breaker is the BB4-A0-03-650-521-C?

It is a switch-only breaker type.

What is the mounting type for this circuit breaker?

The mounting type is Panel Mount.

What is the RoHS status of the BB4-A0-03-650-521-C?

The RoHS status is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for this part?

The MSL is 1 Unlimited.

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