Mfr Part #:

MU1-B-64-610-1-C21-B-D

The Littelfuse MU1-B-64-610-1-C21-B-D is a magnetic (hydraulic delay) circuit breaker rated at 10A and 250V. It features a single pole, push-to-reset actuator, and panel mount design.

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MU1-B-64-610-1-C21-B-D Description

Short technical summary and product information.

The Littelfuse MU1-B-64-610-1-C21-B-D is a single-pole magnetic circuit breaker designed for overcurrent protection. It is rated for 10A continuous current and 250V AC/DC, making it suitable for a variety of power distribution and control applications.

This circuit breaker utilizes a magnetic (hydraulic delay) trip mechanism, providing reliable overcurrent protection with time-delay characteristics. The actuator is a push-to-reset type, which is manually reset after a trip event. The breaker is non-illuminated and designed for panel mounting.

The unit is panel mount, allowing for easy installation in enclosures. The product is listed as RoHS3 compliant, REACH unaffected, and has an MSL of 1 (unlimited), though these compliance statuses are unverified.

Typical applications include industrial control panels, power supplies, and equipment requiring compact overcurrent protection. The 1-pole configuration is suitable for single-phase circuits.

MU1-B-64-610-1-C21-B-D Quick Information

Product Type: Circuit Breaker

Series: MU1

Canonical Name: Littelfuse MU1-B-64-610-1-C21-B-D Magnetic Circuit Breaker, 10A, 250V, 1 Pole, Push to Reset

Subcategory: Magnetic Circuit Breaker

MU1-B-64-610-1-C21-B-D Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MU1-B-64-610-1-C21-B-D Features

Rated for 10A continuous current at 250V.
Magnetic (hydraulic delay) trip mechanism.
Single-pole configuration for overcurrent protection.
Push-to-reset actuator for manual reset.
Panel mount design for easy installation.

MU1-B-64-610-1-C21-B-D Applications

Overcurrent protection for industrial control panels.
Time-delay trip for motor inrush currents.
Panel mount circuit protection for equipment.
Suitable for 10A, 250V power circuits.

MU1-B-64-610-1-C21-B-D FAQs

7 frequently asked questions generated from this part’s specifications.

What is the current rating of this circuit breaker?

10A.

What is the voltage rating?

250V.

What type of circuit breaker is this?

Magnetic (hydraulic delay).

How many poles does it have?

What is the actuator type?

Push to reset.

What is the mounting type?

Panel mount.

Is the breaker illuminated?

No, it is non-illuminated.

MU1-B-64-610-1-C21-B-D Alternate Parts

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The Littelfuse Inc. AN1-B0-20-610-1F4-D is a single-pole, magnetic hydraulic delay circuit breaker. It features a 10A current rating and a 250V voltage rating.

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