MP380 - 80 Amp Circuit Breaker

MP380 - 80 Amp Circuit Breaker

Looking for dependable circuit protection for your home’s low‑voltage electrical system? The Siemens MP380 delivers precisely that. Designed to safeguard 100 Amp, 3‑phase output WML meter stacks in residential settings, this 80 Amp, 240 VAC circuit breaker gives you solid overload and short‑circuit protection. With its 3‑pole configuration and a 10 kA interrupt rating, the MP380 handles demanding loads with confidence — from HVAC units to general household circuits — all while conforming to industry safety standards. Its compact dimensions and straightforward installation make it a wise choice whether you’re installing a new panel or upgrading an existing setup.

Key Features and Benefits

• Miniature Thermal Magnetic Protection: The MP380 uses a thermal‑magnetic trip mechanism to respond quickly to both overloads and short circuits, keeping your wiring and appliances secure.
• 3‑Pole, 3‑Phase Ready: With three poles and 3-phase capability, it’s ideal for 3-phase residential systems, offering balanced load distribution and robust circuit protection.
• Broad Compatibility: Rated for 240 VAC and 80 Amps, this breaker works seamlessly with standard residential power systems.
• High Interrupt Rating (10 kA): Handles high fault currents, giving dependable short‑circuit protection and minimizing risk to downstream equipment.
• HACR‑Rated: Suitable for use in heating, air‑conditioning, and refrigeration (HVACR) applications, making it a versatile choice for various household circuits.
• Compact and Easy to Install: Its compact size and standard form factor allow for fast, clean installations in typical residential breaker panels or meter stacks.

Technical Specifications

• Type: MP‑T Miniature Thermal Magnetic Circuit Breaker
• Application: 100 Amp, 3‑Phase Output WML Meter Stacks (residential low‑voltage)
• Voltage Rating: 240 VAC
• Ampere Rating: 80 Amp
• Interrupt Rating: 10 kA
• Number of Poles: 3 (three‑pole configuration)
• Operating Temperature: Up to 40 °C ambient
• Dimensions: 2.756 × 2.756 × 2.756 inches
• Net Weight: 0.992 lbs

Material Compliance and Certifications

• HACR-Rated: Suitable for heating, ventilation, air conditioning, and refrigeration loads.
• Industry Standards: The MP380 adheres to recognized industry guidelines for thermal‑magnetic circuit breakers in residential systems.

Where It Works Best

• The Siemens MP380 shines in residential settings where reliable 3‑phase distribution is required. It’s an excellent match for homes with 100 Amp, 3‑phase output meter stacks, especially those powering central HVAC units, air conditioning systems, or any setup needing stable, protected 240 VAC power. Whether you’re wiring a new home or upgrading an existing electrical panel, the MP380 gives you consistent, dependable protection and excellent peace of mind.