Siemens P1520 - 20 A, 1-Pole Bolt-On Circuit Breaker | AmpState

The Siemens P1520 is a 20A, 1-pole bolt-on molded case circuit breaker engineered for dependable branch-circuit protection in panelboards and load centers. Designed to perform reliably in residential, commercial, and light industrial environments, it delivers consistent protection when it matters most.

Key benefits and features

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing movement and ensuring steady electrical continuity even in active panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection by accurately responding to both overloads and short circuits for safer, more predictable performance.
• OEM-compatible design is ready to pair with matching Siemens OEM load centers and panelboards, simplifying replacements and upgrades.
• Versatile application range suitable for typical residential circuits as well as light commercial and light industrial setups.

What it does

The P1520 provides essential branch circuit overcurrent and short-circuit protection. When current exceeds the 20A rating or a fault occurs, the thermal-magnetic trip unit opens the circuit, helping to prevent damage to wiring, devices, and equipment.

Technical specifications

• Manufacturer: Siemens
• Part Number: P1520
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

Use the Siemens P1520 in panelboards and load centers where a reliable, easy-to-install protection solution is required for standard 20A circuits. It’s well-suited for upgrading aging panels, adding circuits in residential basements, lighting and receptacle groups in small commercial spaces, or protecting wiring and devices on light industrial equipment where robust, consistent trip performance is essential.

Why choose this Siemens P1520 over alternatives

• Reliable, repeatable protection backed by a thermal-magnetic trip unit that adapts to real-world load conditions, reducing nuisance trips while maintaining safety.
• Rigid, vibration-resistant connection through secure bolt-on mounting, helping maintain electrical integrity in panels exposed to movement or vibration.
• Seamless compatibility with matching Siemens OEM load centers and panelboards, streamlining maintenance and future upgrades.

Ready to safeguard your electrical circuits with proven Siemens protection? The P1520 20A, 1-pole bolt-on circuit breaker combines dependable performance with practical installation advantages, making it a smart, long-lasting choice for a wide range of panel and load-center applications.