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FS2-PB-14-840-42A-BT The Carling Technologies FS2-PB-14-840-42A-BT is a 2-pole circuit breaker designed for chassis mounting. It features a 400A current rating and a magnetic hydraulic delay trip mechanism.
Mfr Part #:

FS2-PB-14-840-42A-BT

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Carling Technologies FS2-PB-14-840-42A-BT is a 2-pole circuit breaker designed for chassis mounting. It features a 400A current rating and a magnetic hydraulic delay trip mechanism.
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FS2-PB-14-840-42A-BT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Approval Agency
Breaker Type
Current Rating (Amps)
Failure Rate
Illumination
Mounting Type
Number of Poles
Voltage Rating
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FS2-PB-14-840-42A-BT Description

Short technical summary and product information.

This Carling Technologies FS2-PB-14-840-42A-BT is a robust circuit breaker designed for reliable circuit protection. It operates with a 400A current rating and is suitable for AC circuits up to 277V and DC circuits up to 125V.

 

The breaker utilizes a magnetic (hydraulic delay) mechanism for tripping, ensuring effective protection against overcurrents. It features a 2-pole configuration and a lever actuator for manual operation. The unit is designed for chassis mounting, making it suitable for integration into various electrical enclosures and systems.

 

Key specifications include a series designation of 'F' and approval by agencies such as CCC and UL489A, indicating compliance with relevant safety standards. The breaker is supplied in bulk packaging.

FS2-PB-14-840-42A-BT Quick Information

Product Type: Circuit Breaker
Series: FS2
Canonical Name: Carling Technologies FS2-PB-14-840-42A-BT Circuit Breaker
Subcategory: Circuit Breaker

FS2-PB-14-840-42A-BT Compliance

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

FS2-PB-14-840-42A-BT Features

  • 400A current rating for high-power circuits.
  • 277V AC and 125V DC voltage ratings.
  • Magnetic hydraulic delay trip mechanism.
  • Two-pole configuration for circuit isolation.
  • Chassis mount design for easy integration.

FS2-PB-14-840-42A-BT Applications

  • Protects industrial panel branch circuits.
  • Suitable for DC power supply protection.
  • Used in motor control center applications.
  • Ideal for high-current switchgear assemblies.
  • Works with telecom rectifier and backup systems.

FS2-PB-14-840-42A-BT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the FS2-PB-14-840-42A-BT?

277V AC and 125V DC

What is the current rating?

400A

How many poles does this circuit breaker have?

2 poles

What is the mounting type?

Chassis mount

What type of actuator does it use?

Lever actuator

What certifications does it have?

CCC and UL489A

What packaging type is available?

Bulk

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