MPP2125KP - 125 Amp Circuit Breaker

MPP2125KP - 125 Amp Circuit Breaker

The Siemens MPP2125KP 125 Amp 4‑Pole Circuit Breaker delivers dependable overload and short‑circuit protection for both residential and commercial electrical distribution systems — whether you’re wiring a new panel or upgrading an existing one. Designed with a plug-in connection, it streamlines installation for electricians and experienced DIYers alike, offering a fast, hassle-free fit without sacrificing performance. With a 120/240 V operating voltage and 125-amp rating, this breaker is built to safeguard your wiring and connected devices under heavy loads. Its thermal-magnetic trip mechanism reacts swiftly and accurately to abnormal current surges, helping prevent damage and reduce fire risk. Finished in quality materials and manufactured under strict standards, it’s a long-lasting component you can count on.

Key Features and Benefits

• Reliable 125 Amp, 120/240 V capacity: Ideal for mid-range residential and light commercial loads, providing dependable protection for circuits powering HVAC, appliances, or multiple branch circuits.
• Thermal‑magnetic trip design: Quickly responds to overloads and short-circuits, disconnecting power before wiring or equipment overheats.
• 4-pole configuration: Offers the convenience of handling multi-phase or multi-wire branch circuits in one compact device.
• Plug-in installation: Makes mounting straightforward and fast — a major time-saver for installers, whether working on new construction or retrofits.
• Durable build quality: Constructed with premium materials and quality-controlled manufacturing to ensure long service life and consistent performance.

Technical Specifications

• Type: MPP‑PT
• Number of Poles: 4
• Voltage Rating: 120/240 V
• Amperage Rating: 125 Amp
• Trip Type: Thermal‑Magnetic
• Interrupt Capacity: 100 AIC
• Connection Style: Plug-In
• Dimensions: 6" L × 4" W × 3" H
• Net Weight: 2.998 lbs

Material Compliance and Certifications

• UL 489 Certification: The MPP2125KP is manufactured to meet industry safety and performance benchmarks. It carries the UL 489 certification, confirming compliance with rigorous standards for circuit breakers used in residential and commercial electrical distribution systems.
• Build Quality: Built with premium-grade components under controlled factory conditions, this breaker delivers consistent reliability and peace of mind for demanding electrical environments.

Where It Works Best

• This circuit breaker excels in residential load centers, small commercial panels, or light industrial electrical systems where medium-duty circuits are common. Use it for setups powering HVAC systems, water heaters, sub-panels, or multiple branch circuits requiring reliable overload and short-circuit protection. Its plug-in design and 4-pole capacity make it particularly suited for installations needing quick, clean wiring jobs without complex rewiring — whether you’re upgrading existing panels or installing new ones from scratch.