CTB-B-B-04 The Littelfuse CTB-B-B-04 is a thermal circuit breaker designed for demanding OEM environments. It features a 4A current rating and 250VAC/50VDC voltage rating.
Mfr Part #:

CTB-B-B-04

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse CTB-B-B-04 is a thermal circuit breaker designed for demanding OEM environments. It features a 4A current rating and 250VAC/50VDC voltage rating.
Stock on Request

CTB-B-B-04 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
Termination
Voltage Rating

CTB-B-B-04 Description

Short technical summary and product information.

The CTB-B-B-04 is a thermal circuit breaker from Littelfuse, part of the CTB-Series. It is designed for robust performance in OEM applications.

 

This circuit breaker has an electrical rating of 4 Amps and can handle voltages up to 250VAC or 50VDC. It features a single pole and an interrupting capacity of 1,000 Amps. The breaker type is thermal, with a series trip mechanism.

 

For mechanical integration, the CTB-B-B-04 is designed for front panel snap-in mounting and utilizes a rocker actuator. It is non-illuminated and features 0.250 tab (Q.C.) terminations. Agency approvals include UL 1077 Recognized, VDE Certified to IEC/EN 60934, and cUL.

 

Environmental compliance includes RoHS3 compliance, MSL 1 Unlimited, and REACH unaffected status. The product is suitable for various industrial applications requiring reliable circuit protection.

CTB-B-B-04 Quick Information

Product Type: Thermal Circuit Breaker
Series: CTB-Series
Canonical Name: CTB-Series Thermal Circuit Breaker
Subcategory: Thermal Circuit Breaker

CTB-B-B-04 Compliance

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

CTB-B-B-04 Features

  • 4A current rating for circuit protection.
  • 250VAC/50VDC voltage handling capability.
  • 1000A interrupting capacity for safety.
  • Snap-in panel mount design.
  • Rocker actuator for easy operation.

CTB-B-B-04 Applications

  • Ideal for OEM equipment protection.
  • Suitable for industrial automation.
  • Used in transportation systems.
  • Applicable in marine environments.
  • Reliable for data center power.

CTB-B-B-04 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the CTB-B-B-04 circuit breaker?

The current rating is 4A.

What is the voltage rating for the CTB-B-B-04?

It is rated for 250VAC or 50VDC.

How many poles does the CTB-B-B-04 have?

The circuit breaker has 1 pole.

What is the interrupting capacity of this circuit breaker?

The interrupting capacity is 1,000A.

What type of breaker is the CTB-B-B-04?

It is a thermal circuit breaker.

How is the CTB-B-B-04 mounted?

It is designed for front panel snap-in mounting.

What is the termination style for this circuit breaker?

It uses 0.250 tab (Q.C.) terminations.

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