Square D | MH20 | Circuit Breaker | 100A | 240V

Discover a precise, reliable protection solution with the Square D MH20 circuit breaker. Designed for maintenance, retrofit, and replacement projects, this OEM component delivers the exact specifications you need to keep your electrical system safe and compliant.

• Amperage: 100 A
• Voltage: 240 V
• Part number: MH20 — the clearest reference for compatibility
• Ideal for: maintenance tasks, panel retrofits, and replacement installs where exact matching specs are essential

Why choose the Square D MH20? Because it’s a genuine Square D part with precise ratings that eliminate guesswork during service. Its 100 A at 240 V specification ensures you’re protecting the right load, reducing the risk of nuisance trips or undersized protection in critical circuits. This isn’t a generic substitute—it's the exact component that aligns with your panel’s design and safety requirements.

Who benefits most

• Electrical contractors performing panel upgrades or replacements
• Facilities managers overseeing maintenance on commercial, industrial, or residential electrical systems
• Homeowners tackling service panel refurbishments who demand accurate, dependable protection

How to ensure a perfect fit

• Verify that your panel or main breaker accepts MH-series devices and supports a 100 A, 240 V rating
• Use the part number MH20 as the primary compatibility reference when ordering
• Check the panel label or manufacturer documentation for any specific breaker type requirements

Practical guidance for use

• Keep a spare MH20 on hand for planned maintenance or retrofit projects to minimize downtime
• Coordinate replacement timing with routine inspections to prevent unexpected outages
• Document the exact part reference (MH20) in your service records to simplify future replacements

With the Square D MH20 circuit breaker, you’ll achieve dependable protection for 100 A circuits at 240 V while simplifying compatibility checks and sourcing. For dependable, specification-aligned performance, reference this exact part number MH20 and follow the compatibility notes to ensure a seamless installation.