MP330 - 30 Amp Circuit Breaker

MP330 - 30 Amp Circuit Breaker

When safety matters and performance counts, the Siemens MP330 delivers dependable protection for your home’s electrical system. This 3‑pole, 240 V AC breaker is engineered to handle the demands of residential load centers, feeders, and sub‑circuits — a solid choice whether you’re upgrading an existing panel or installing a new system. With dependable overload and short‑circuit protection, the MP330 gives electricians and homeowners confidence that their wiring is safeguarded, even under heavy load or in demanding HVAC setups.

Key Features and Benefits

• Thermal‑Magnetic Trip Unit: Reacts fast to overloads or short circuits, preventing damage and enhancing safety.
• 30 Amp Rating: Provides reliable protection for common household circuits and systems without unnecessary oversizing.
• High Interrupt Rating (10 kA): Built to handle high fault currents — ideal for homes with heavy electrical demands, including HVAC or large appliances.
• 3‑Pole Configuration: Makes it easy to manage multi-phase loads or multi-wire circuits, offering flexibility and broad use.
• HACR Rated: Complies with standards for heating, air conditioning, and refrigeration equipment — a plus if your system powers HVAC units.
• Temperature Tolerance: Designed to perform consistently in ambient temperatures up to 40 °C (104 °F), suitable for a variety of indoor environments.
• Durable Construction: Designed to hold up under normal domestic conditions, giving long-term reliability you can count on.

Technical Specifications

• Type: MP‑T (Miniature Thermal‑Magnetic) Circuit Breaker
• Voltage Rating: 240 V AC
• Amperage Rating: 30 Amp
• Interrupt Rating: 10 kA
• Number of Poles: 3
• Operating Temperature: Up to 40 °C
• Rating Standard: HACR (Heating, Air Conditioning, Refrigeration)

Material Compliance and Certifications

• The Siemens MP330 meets rigorous industry requirements, delivering safety and performance that align with major residential and HVAC electrical standards. Its HACR rating ensures it's suitable for heating, ventilation, and air‑conditioning circuits. With Siemens’ long-standing reputation for quality, you can trust this breaker to meet certification expectations and give dependable protection wherever it’s installed.

Where It Works Best

• The MP330 is a strong match for homes, townhouses, and small commercial properties where reliable circuit protection is essential. It works especially well as a main breaker for load centers, feeders, or sub-panels — and is a great fit if you’re powering HVAC systems, heavy-duty appliances, or multiple circuits at once. Whether you’re wiring a new build, upgrading an older installation, or expanding capacity, this breaker offers the prevention and peace of mind you want.

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