The Siemens Q2100 2‑Pole 100 Amp circuit breaker is a high‑capacity thermal‑magnetic breaker designed to provide reliable overcurrent protection for demanding residential and light commercial electrical systems. Engineered specifically for use in Siemens load centers and panelboards, this breaker safeguards conductors, equipment, and connected loads from damage caused by overloads and short‑circuit conditions.

As part of the Siemens Type QP breaker family, the Q2100 is built for consistent tripping accuracy, long‑term durability, and dependable performance under higher electrical loads. The two‑pole configuration ensures simultaneous disconnection of both ungrounded conductors, making it ideal for 240‑volt feeder circuits, sub‑panels, and high‑amperage equipment applications. Its plug‑on design allows for straightforward installation while maintaining a secure, stable connection within compatible Siemens panels.

The Siemens Q2100 circuit breaker is commonly used for sub‑panel feeds, large HVAC systems, electric ranges, distribution equipment, and other applications requiring robust 100‑amp circuit protection. It is trusted by electricians, contractors, and facility maintenance teams who need safe, code‑compliant protection backed by Siemens engineering.

Key Features

• 2‑pole design provides simultaneous disconnection of both hot conductors
• 100 amp rating supports high‑demand 240V branch and feeder circuits
• Thermal‑magnetic trip mechanism protects against overloads and short circuits
• Plug‑on mounting allows fast and secure installation
• Designed exclusively for Siemens Type QP load centers and panelboards
• Consistent and dependable tripping performance enhances system safety
• Compact form factor optimizes space within the electrical panel
• Manufactured to meet stringent safety and quality standards

Specifications

• Manufacturer: Siemens
• Series: Type QP
• Catalog Number: Q2100
• Number of Poles: 2
• Amperage Rating: 100 Amps
• Voltage Rating: 120/240 VAC
• Frequency: 60 Hz
• Breaker Type: Thermal‑Magnetic
• Mounting Method: Plug‑On
• Trip Curve: Standard
• Interrupting Rating: 10,000 AIC at 120/240V
• Application Environment: Indoor (when installed in an approved enclosure)
• Compliance: UL Listed

Applications

• Sub‑panel and feeder circuits
• Large HVAC and air conditioning systems
• Electric ranges and high‑load cooking equipment
• Distribution and branch circuits requiring 100A service
• Light commercial electrical systems
• High‑capacity residential electrical installations