MP270 - 70 Amp Circuit Breaker

MP270 - 70 Amp Circuit Breaker

The Siemens MP270 70 Amp circuit breaker delivers dependable protection for residential and light-commercial electrical systems — perfect when you need a safe, everyday solution for household or small-business wiring. Built for compatibility with 125 AMP and 225 AMP single-phase output meter stacks using WMM, WML, or WMT configurations, the MP270 offers solid performance at 120/240 VAC. Its 10 kA interrupt rating and HACR certification ensure that heating, air-conditioning, and refrigeration systems integrate safely, giving homeowners and contractors peace of mind. Designed to exceed standard safety norms while remaining easy to install, this circuit breaker is an excellent choice whether you’re wiring new construction or upgrading existing panels.

Key Features and Benefits

• Reliable circuit protection — Guards against overloads and short circuits, helping prevent electrical hazards and system failures.
• High-performance operation — Rated for 70 amps at 120/240 VAC, with a 10 kA interrupt capacity to handle fault currents effectively.
• Broad compatibility — Works with 125 AMP and 225 AMP single-phase output meter stacks (WMM, WML, WMT types), making it a flexible choice for many setups.
• HACR-certified — Suitable for heating, air conditioning, and refrigeration (HACR) applications; meets rigorous safety standards to support various electrical loads.
• Durable design for long-term use — Built with dependable materials and construction, ensuring stable performance over time.

Technical Specifications

• Model Type: MP‑T (Type MP)
• Voltage Rating: 120/240 VAC
• Amperage Rating: 70 Amp
• Interrupt Rating: 10 kA
• Poles: 2-pole
• Compatible Meter Stacks: 125 AMP and 225 AMP single-phase output — WMM, WML, WMT
• HACR Rating: Yes
• Operating Temperature: Up to 40 °C

Material Compliance and Certifications

• The Siemens MP270 meets industry safety and regulatory standards, including HACR certification for heating, ventilation, air conditioning, and refrigeration systems. Its compliance ensures safe integration into residential and light commercial electrical environments, giving you a circuit breaker that’s tested and trusted for everyday installations.

Where It Works Best

• Residential panel upgrades or new installations — Ideal for homeowners replacing old breakers or installing new wiring for standard household loads.
• Light commercial electrical setups — Suited for small businesses or offices that use single-phase, 120/240 VAC systems and need reliable protection.
• Heating, ventilation, air conditioning, and refrigeration systems — Because of its HACR rating, it’s a dependable choice for HVAC or refrigeration circuits.
• Meter stack installations — Designed to plug into 125 AMP or 225 AMP meter stacks (WMM, WML, WMT), making it versatile for utility or metered-power use cases.