MS25201-5 – Electronic Component – Eaton

Eaton MS25201-5 – 5 Amp Thermal Circuit Breaker – Circuit Protection

Ensure robust overcurrent protection in your electronic designs with the Eaton MS25201-5 thermal circuit breaker. This reliable component safeguards circuits against overloads and short circuits, offering automatic trip functionality and manual reset for simplified maintenance. Trust PCX for genuine Eaton parts delivered swiftly with expert support.

Key Features

Current Rating: 5 Amps
Voltage Rating: 240V AC
Actuator Type: Toggle
Poles: Single Pole, Single Throw (SPST)
Trip-Free Design: Prevents manual override during fault conditions
Mounting: Panel or PCB mount options

Technical Details
The Eaton MS25201-5 thermal circuit breaker utilizes a bimetal strip mechanism to detect overcurrent conditions. It features a compact form factor suitable for space-constrained applications and operates across a standard industrial temperature range of -40°C to +85°C. The toggle actuator provides clear visual status indication (ON/OFF) and facilitates easy manual reset after tripping.

Common Applications

Industrial control panels and power distribution units
Commercial HVAC systems and motor protection
Power supplies and inverters
Medical equipment and laboratory instruments
Telecommunications infrastructure

About Eaton
Eaton is a globally recognized leader in power management solutions, renowned for engineering excellence and innovation across electrical, hydraulic, and mechanical systems. With over a century of industry experience, Eaton sets rigorous standards for quality, safety, and reliability in mission-critical applications.
Eaton’s circuit protection portfolio, including the MS Series thermal breakers, is trusted by engineers worldwide for consistent performance under demanding conditions. Their commitment to rigorous testing and certification (including UL, CSA) ensures compliance with international safety regulations, making Eaton components a cornerstone of resilient electronic designs.

About Thermal Circuit Breakers
Thermal circuit breakers are essential safety devices designed to interrupt electrical current flow during overload or short-circuit events, preventing equipment damage and fire hazards. Unlike fuses, they are resettable, reducing maintenance costs and downtime. They operate using a heat-sensitive bimetal strip that bends under excessive current, mechanically disconnecting the circuit.
These components are vital in both consumer electronics and industrial systems where consistent operation and user safety are paramount. Selecting the correct current rating and trip characteristics—like those offered by the Eaton MS25201-5—ensures optimal protection tailored to specific circuit requirements, enhancing system longevity and reliability.

Packaging Options
Available in bulk packaging for prototyping or high-volume production. Contact PCX for specific packaging details.

FAQs
Q: What is the trip time for the MS25201-5 at 200% load?A: Typically 25–150 seconds at 200% of rated current (10A), depending on ambient conditions. Refer to the Eaton datasheet for detailed curves.

Q: Is this breaker suitable for DC voltage applications?A: While primarily rated for 240V AC, it can handle 28V DC. Verify compatibility with your DC circuit requirements.

Q: Can I mount the MS25201-5 directly to a PCB?A: Yes, it supports PCB mounting via solder terminals. Ensure board layout accommodates thermal dissipation.

Q: How does a thermal breaker differ from a magnetic one?A: Thermal breakers respond to heat from sustained overcurrents (slower trip), while magnetic breakers react instantly to short-circuit currents. The MS25201-5 uses thermal operation.

Q: Does Eaton provide RoHS compliance for this component?A: Yes, Eaton MS Series breakers comply with RoHS directives.

Q: What certifications does this part hold?A: It is UL and CSA certified, ensuring adherence to North American safety standards.

Note: Product image is representational; refer to datasheet for exact dimensions. Download Datasheet

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