MB2-B-34-620-2-A27-B-C Littelfuse MB2-B-34-620-2-A27-B-C is a 20A, 250V, 2-pole magnetic hydraulic delay circuit breaker with a rocker actuator. It is designed for panel mount applications and is CCC, CSA, UL1077 approved.
Mfr Part #:

MB2-B-34-620-2-A27-B-C

Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse MB2-B-34-620-2-A27-B-C is a 20A, 250V, 2-pole magnetic hydraulic delay circuit breaker with a rocker actuator. It is designed for panel mount applications and is CCC, CSA, UL1077 approved.
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MB2-B-34-620-2-A27-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

MB2-B-34-620-2-A27-B-C Description

Short technical summary and product information.

The Littelfuse MB2-B-34-620-2-A27-B-C is a 2-pole magnetic hydraulic delay circuit breaker rated for 20A continuous current at 250V. The magnetic hydraulic delay mechanism provides time-delayed trip characteristics suitable for applications with inrush currents, such as motor starting or capacitive loads, while still offering fast short-circuit protection. The breaker uses a rocker actuator and is non-illuminated. It is designed for panel mount installation, making it suitable for control panels, power distribution, and industrial equipment. The product is approved by CCC, CSA, and UL1077, indicating compliance with international safety standards. It is listed as RoHS3 compliant, REACH unaffected, and has an MSL of 1 (unlimited), though these compliance values are unverified.

MB2-B-34-620-2-A27-B-C Quick Information

Product Type: Circuit Breaker
Series: MB2-B
Canonical Name: Littelfuse MB2-B-34-620-2-A27-B-C 20A 250V 2-Pole Magnetic Hydraulic Delay Circuit Breaker
Subcategory: Magnetic Circuit Breaker

MB2-B-34-620-2-A27-B-C Compliance

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

MB2-B-34-620-2-A27-B-C Features

  • 20A rated current for circuit protection.
  • 250V voltage rating ensures safe operation.
  • Magnetic hydraulic delay for inrush current.
  • 2-pole design for dual line disconnection.
  • Non-illuminated rocker actuator.

MB2-B-34-620-2-A27-B-C Applications

  • Provides overcurrent protection for electrical circuits.
  • Time-delay trip handles inrush currents.
  • Panel mount installation for control panels.
  • 2-pole breaking for simultaneous disconnection.

MB2-B-34-620-2-A27-B-C FAQs

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

The operating voltage is 250V.

What is the mounting type for this circuit breaker?

The mounting type is panel mount.

What is the current rating of this circuit breaker?

The current rating is 20A.

What type of circuit breaker is this?

This is a magnetic hydraulic delay circuit breaker.

How many poles does this circuit breaker have?

It has 2 poles.

What actuator type does this circuit breaker use?

The actuator type is rocker.

What approvals does this circuit breaker have?

It is approved by CCC, CSA, and UL1077.

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