BB4-B2-34-630-421-D The BB4-B2-34-630-421-D is a circuit breaker manufactured by Littelfuse Inc. with a 30A current rating and 250V voltage rating. It features a magnetic hydraulic delay mechanism and four poles.
Mfr Part #:

BB4-B2-34-630-421-D

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The BB4-B2-34-630-421-D is a circuit breaker manufactured by Littelfuse Inc. with a 30A current rating and 250V voltage rating. It features a magnetic hydraulic delay mechanism and four poles.
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$ Price Range: $0.99

BB4-B2-34-630-421-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
Storage Temperature
Tape & Reel
Voltage Rating

BB4-B2-34-630-421-D Description

Short technical summary and product information.

The BB4-B2-34-630-421-D is a circuit breaker designed for electrical protection applications. It has a current rating of 30 amperes and a voltage rating of 250 volts. The breaker type is magnetic with hydraulic delay, providing reliable circuit interruption under fault conditions. It features four poles, suitable for multi-phase systems, and is intended for panel mounting.

 

This circuit breaker is compliant with multiple approval agencies including CCC, CSA, UL, and VDE, ensuring its suitability for various international standards. It is used in electrical distribution panels, industrial control systems, and other applications requiring circuit protection. The device does not have illumination features and is designed for panel mounting.

 

Environmental compliance notes indicate RoHS3 compliance, though this status is unverified, and it has a Moisture Sensitivity Level of 1, also unverified. The product is part of Littelfuse's circuit protection series and is categorized under circuit breakers.

BB4-B2-34-630-421-D Quick Information

Product Type: Circuit Breaker
Canonical Name: CIRCUIT BREAKER

BB4-B2-34-630-421-D Compliance

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

BB4-B2-34-630-421-D Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

BB4-B2-34-630-421-D Features

  • Rated for 30A electrical current
  • Voltage rating of 250V AC/DC
  • Magnetic hydraulic delay breaker type
  • Four-pole configuration for multi-phase systems
  • Panel mount packaging

BB4-B2-34-630-421-D Applications

  • Used in electrical distribution panels
  • Suitable for industrial control systems
  • Provides circuit protection in multi-phase setups
  • Ideal for panel-mounted electrical systems

BB4-B2-34-630-421-D FAQs

4 frequently asked questions generated from this part’s specifications.
What is the current rating of the circuit breaker?

The current rating is 30A.

What is the voltage rating of this circuit breaker?

The voltage rating is 250V.

How many poles does this circuit breaker have?

It has four poles.

What approval agencies certify this circuit breaker?

CCC, CSA, UL, VDE.

BB4-B2-34-630-421-D Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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CA4-B0-46-630-51D-D
CA4-B0-46-630-51D-D
Littelfuse Inc.
The Littelfuse Inc. CA4-B0-46-630-51D-D is a 4-pole magnetic hydraulic delay circuit breaker. It features a 30A current rating and 250V voltage rating.
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BA4-B0-26-630-411-D
BA4-B0-26-630-411-D
Littelfuse Inc.
The Littelfuse Inc. BA4-B0-26-630-411-D is a 4-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay trip mechanism.
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CA4-B0-20-630-22D-D
CA4-B0-20-630-22D-D
Littelfuse Inc.
The Littelfuse Inc. CA4-B0-20-630-22D-D is a 4-pole magnetic (hydraulic delay) circuit breaker. It features a 30A current rating and a 250V voltage rating.
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