Siemens QSH2100 100A 2-Pole 240 V Circuit Breaker Potential Transformer

Meet the Siemens QSH2100, a dependable 100A, two-pole circuit breaker designed for 240V circuits. This authentic Siemens device, identified by Part Number QSH2100, delivers reliable protection for electrical loads while ensuring safe, simultaneous disconnection of both hot lines when the system detects an overcurrent condition.

Key specifications

• Current rating: 100 A
• Poles: 2-pole
• Voltage rating: 240 V
• Part Number: QSH2100
• Brand: Siemens

Why choose the QSH2100

Designed with Siemens engineering, the QSH2100 provides predictable, proven protection for 240V circuits. The two-pole design ensures both hot conductors are disconnected together, reducing the risk of shock and preventing hazardous situations that can arise from phase imbalance. With a clear, single-part replacement option, it simplifies maintenance and helps keep your electrical panel operating smoothly.

Ideal applications

• 240V branch circuits in residential setups (such as large appliances or EV charging feeders)
• Commercial and light industrial panels requiring robust 100A protection
• Panel upgrades or replacements where a Siemens-certified 2-pole solution is preferred

Practical considerations

When selecting a replacement or upgrade, ensure the installation is compatible with your Siemens panel and that a 2-pole 240V configuration aligns with the circuit being protected. The QSH2100 is the go-to choice for reliable, straightforward protection on 240V circuits, backed by Siemens quality and a precise 100A protection profile.