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MA1-B-24-620-1-A26-B-C Littelfuse MA1-B-24-620-1-A26-B-C is a 1-pole magnetic (hydraulic delay) circuit breaker rated at 20A and 250V. It features a rocker actuator and panel mount design.
Mfr Part #:

MA1-B-24-620-1-A26-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MA1-B-24-620-1-A26-B-C is a 1-pole magnetic (hydraulic delay) circuit breaker rated at 20A and 250V. It features a rocker actuator and panel mount design.
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MA1-B-24-620-1-A26-B-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
Voltage Rating
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MA1-B-24-620-1-A26-B-C Description

Short technical summary and product information.

The Littelfuse MA1-B-24-620-1-A26-B-C is a single-pole magnetic hydraulic delay circuit breaker designed for overcurrent protection in electrical systems. It is rated at 20 amps continuous current and 250 volts AC/DC, providing reliable interruption under fault conditions.

 

The hydraulic delay mechanism allows the breaker to tolerate temporary inrush currents without nuisance tripping, making it suitable for motor and transformer circuits. The rocker actuator provides manual on/off control and visible indication of the breaker state.

 

This circuit breaker is panel mountable, enabling secure installation in enclosures and control panels. It is approved by CCC, CSA, and UL1077, confirming compliance with international safety standards.

MA1-B-24-620-1-A26-B-C Quick Information

Product Type: Circuit Breaker
Series: MA1-B
Canonical Name: Littelfuse MA1-B-24-620-1-A26-B-C 1-Pole 20A 250V Magnetic (Hydraulic Delay) Circuit Breaker
Subcategory: Single Pole Circuit Breakers

MA1-B-24-620-1-A26-B-C Compliance

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

MA1-B-24-620-1-A26-B-C Features

  • Rated 20A and 250V for reliable circuit protection.
  • Magnetic hydraulic delay type for transient surge tolerance.
  • Single-pole design for individual circuit control.
  • Rocker actuator for easy manual operation.
  • Panel mount configuration for secure installation.

MA1-B-24-620-1-A26-B-C Applications

  • Overcurrent protection for power supply units.
  • Suitable for industrial control panel circuits.
  • Protects lighting systems from overload.
  • Used in HVAC equipment branch circuits.
  • Ideal for motor controller protection.

MA1-B-24-620-1-A26-B-C FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the Littelfuse MA1-B-24-620-1-A26-B-C?

250V

What is the current rating of this circuit breaker?

20A

How many poles does this circuit breaker have?

1 pole

What type of circuit breaker is the MA1-B-24-620-1-A26-B-C?

Magnetic (Hydraulic Delay)

What actuator type does this circuit breaker use?

Rocker actuator

What mounting type does this circuit breaker support?

Panel Mount

What safety approvals does the MA1-B-24-620-1-A26-B-C hold?

CCC, CSA, UL1077

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