Siemens QSH2175 175A 2-Pole 240 V Circuit Breaker Potential Transformer

Siemens QSH2175 is a robust 2-pole circuit breaker engineered for demanding industrial power distribution. With a 175 A continuous current rating and 240 V operation, this unit provides reliable protection for feeders, panels, and critical loads. Identified by Part Number QSH2175, it’s built to integrate with protection schemes that leverage potential transformer (PT) signals for accurate monitoring and remote metering.

Why this Siemens QSH2175 stands out

• 175 A protection for heavy feeders: Supports high-load circuits without nuisance trips while maintaining fast, predictable protection.
• 2-pole design for balanced protection: Ensures simultaneous disconnection of both live conductors, enhancing safety and control in 240 V systems.
• Reliability from a trusted brand: Siemens’ durable trip mechanisms and consistent performance in challenging industrial environments.
• Potential Transformer compatibility: Optimized for systems using PT-based protection and metering, enabling accurate monitoring with reduced wiring complexity.
• Panel and system compatibility: Designed to fit Siemens panels and distribution configurations, simplifying installation and ongoing maintenance.

Ideal use cases

Use this QSH2175 breaker to protect feeders feeding critical equipment in manufacturing lines, data-center power feeds, or sub-feed circuits from a main distribution panel. It’s a strong choice when your protection strategy includes remote monitoring, PT-based sensing, or integration with SCADA and energy management systems.

Specifications at a glance

• Part Number: QSH2175
• Current rating: 175 A
• Poles: 2
• Voltage rating: 240 V
• Type: Circuit Breaker with potential transformer-ready design