Mfr Part #:

MU1-B-94-490-1-B21-B-C

The Littelfuse Inc. MU1-B-94-490-1-B21-B-C is a 1-pole circuit breaker designed for panel mounting. It features a magnetic (hydraulic delay) trip mechanism.

Stock on Request

MU1-B-94-490-1-B21-B-C Description

Short technical summary and product information.

This Littelfuse Inc. MU1-B-94-490-1-B21-B-C is a single-pole circuit breaker with a current rating of 9A and a voltage rating of 250V. It utilizes a magnetic (hydraulic delay) tripping mechanism for reliable protection.

The breaker is designed for panel mounting and features a push-to-reset actuator. It is approved by CCC, CSA, and UL1077 agencies, indicating compliance with relevant safety standards.

This component is RoHS3 compliant and has a Moisture Sensitivity Level (MSL) of 1, meaning it has unlimited shelf life under typical conditions. The REACH status is unaffected. Its illumination is none.

MU1-B-94-490-1-B21-B-C Quick Information

Product Type: Circuit Breaker

Series: MU1-B

Canonical Name: Littelfuse Inc. MU1-B-94-490-1-B21-B-C Circuit Breaker

MU1-B-94-490-1-B21-B-C Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

MU1-B-94-490-1-B21-B-C Features

9A current rating for protection.
250V voltage rating.
Magnetic hydraulic delay breaker type.
Panel mount design.
Push to reset actuator.

MU1-B-94-490-1-B21-B-C Applications

Used in industrial control panel protection.
Suitable for power distribution systems.
Ideal for equipment requiring reliable overload protection.
Applies to motor and transformer inrush scenarios.
Used in commercial building electrical systems.

MU1-B-94-490-1-B21-B-C FAQs

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

What is the current rating of this circuit breaker?

9A.

What is the voltage rating?

250V.

How many poles does it have?

What type of circuit breaker is it?

Magnetic (Hydraulic Delay).

What is the actuator type?

Push to Reset.

What approvals does this circuit breaker have?

CCC, CSA, UL1077.

What is the mounting type?

Panel Mount.

MU1-B-94-490-1-B21-B-C Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.

View All Alternate Parts

MU1-B-34-490-1-A21-B-C

Littelfuse Inc.

The Littelfuse Inc. MU1-B-34-490-1-A21-B-C is a single-pole, magnetic hydraulic delay circuit breaker. It features a panel mount design and a push-to-reset actuator.

View Part

MU1-B-64-490-1-A21-B-C