Siemens P2100 - 100 A, 1-Pole Bolt-On Circuit Breaker | AmpState

The Siemens P2100 is a 100A, 1-pole bolt-on molded case circuit breaker purpose-built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed for reliability in demanding environments, this unit features a secure bolt-on mounting that delivers a rigid, vibration-resistant connection to the bus, helping maintain consistent performance even in busy electrical spaces.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection for stable operation in panelboards and load centers.
• Thermal-magnetic trip unit: Combines thermal overcurrent protection with magnetic short-circuit protection for fast, repeatable response to faults.
• 1-pole, 100A design: Ideal for protecting individual branch circuits while fitting neatly into standard Siemens panelboard layouts.
• OEM-compatible: Specifically engineered to be compatible with matching Siemens OEM load centers and panelboards, ensuring straightforward replacement and reliable integration.
• Suitable for residential, commercial, and light industrial installations where solid, predictable protection is essential.

Where it fits in your electrical system

The P2100 acts as the protective watchdog for branch circuits, interrupting current quickly when a fault is detected. Its bolt-on design simplifies installation and maintenance in existing Siemens panelboards, while its thermal-magnetic trip delivers dependable protection against both sustained overloads and sudden short circuits. If you’re wiring a new panel or replacing a failed breaker in a compatible load center, the P2100 is built to integrate smoothly without additional adapters or reflashing.

Key specifications at a glance

• Manufacturer: Siemens
• Part Number: P2100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for professionals and do-it-yourself enthusiasts working with Siemens panelboards and load centers, the P2100 100A 1-pole bolt-on breaker offers precise protection, straightforward installation, and reliable performance. Choose this unit when you need a robust, OEM-compatible solution that aligns with Siemens electrical systems and delivers consistent protection for residential, commercial, and light industrial circuits.