MS1-B-12-440-3-1CB-A-0AA The Littelfuse Inc. MS1-B-12-440-3-1CB-A-0AA is a single-pole, panel-mount circuit breaker. It features a magnetic (hydraulic delay) tripping mechanism and a 4A current rating.
Mfr Part #:

MS1-B-12-440-3-1CB-A-0AA

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse Inc. MS1-B-12-440-3-1CB-A-0AA is a single-pole, panel-mount circuit breaker. It features a magnetic (hydraulic delay) tripping mechanism and a 4A current rating.
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MS1-B-12-440-3-1CB-A-0AA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Actuator Type
Breaker Type
Current Rating
Current Rating (Amps)
Illumination
Mounting Type
Number of Poles
SVHC Present
Voltage Rating

MS1-B-12-440-3-1CB-A-0AA Description

Short technical summary and product information.

This Littelfuse Inc. MS1-B-12-440-3-1CB-A-0AA is a single-pole circuit breaker designed for panel mounting. It operates with a voltage rating of 240V and a current rating of 4A.

 

The breaker utilizes a magnetic (hydraulic delay) tripping mechanism, providing reliable protection. The actuator type is a toggle, and it does not feature illumination.

 

This component is RoHS3 compliant and has an MSL rating of 1 Unlimited. It is suitable for applications requiring a dependable circuit protection solution with specific current and voltage requirements.

MS1-B-12-440-3-1CB-A-0AA Quick Information

Product Type: Circuit Breaker
Canonical Name: Littelfuse Inc. MS1-B-12-440-3-1CB-A-0AA Circuit Breaker

MS1-B-12-440-3-1CB-A-0AA Compliance

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

MS1-B-12-440-3-1CB-A-0AA Features

  • 4A current rating for protection.
  • 240V voltage rating.
  • Panel mount design.
  • Magnetic (hydraulic delay) tripping.
  • Single pole configuration.

MS1-B-12-440-3-1CB-A-0AA Applications

  • Used in power distribution panels.
  • Suitable for equipment protection circuits.
  • Ideal for industrial control systems.
  • Applicable in HVAC and lighting control.

MS1-B-12-440-3-1CB-A-0AA FAQs

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

The current rating is 4A.

What is the voltage rating?

The voltage rating is 240V.

What type of circuit breaker is this?

It is a magnetic (hydraulic delay) circuit breaker.

How many poles does it have?

It has 1 pole.

What is the actuator type?

The actuator type is toggle.

Does this circuit breaker have illumination?

No, it is non-illuminated.

What is the mounting type?

It is panel mount.

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