Siemens QR22B175L 175A 2-Pole 240 V Circuit Breaker Potential Transformer

Meet the Siemens QR22B175L — a rugged, high-current circuit breaker designed for demanding electrical installations. This 175 A, 2-pole, 240 V unit is built to protect feeders and distribution panels with reliable overload and short-circuit protection, keeping circuits safe in commercial and light-industrial environments. As part of the Siemens QR family, it delivers consistent performance and easy integration within compatible panelboards.

Key specifications at a glance

• Current rating: 175 A
• Poles: 2
• Voltage rating: 240 V
• Part number: QR22B175L
• Type: Circuit breaker suitable for Siemens QR-series panels and distribution systems

Why this model stands out

• Designed for high-demand protection in commercial and industrial setups, the QR22B175L handles substantial loads while maintaining fast response to overcurrents.
• Seamless compatibility with Siemens QR panelboards means fewer compatibility concerns during installation and easier part sourcing for maintenance or upgrades.
• Reliable, manufacturer-backed protection helps keep critical equipment and wiring safeguarded, reducing downtime and equipment wear due to electrical faults.

Ideal use cases

• Main feeders in commercial electrical rooms or service entrances requiring robust 175 A protection
• Subpanels and distributed circuits in light-industrial facilities that demand dependable, long-life protection
• Electrical distribution systems in data-heavy environments where stable, predictable breaker performance matters

How it solves common problems

• Prevents overheating and damage from overloads on heavy circuits by providing precise, fast-acting protection
• Reduces maintenance headaches with a widely supported Siemens QR-series platform, making part replacement straightforward
• Supports orderly, scalable protection strategy in growing electrical installations without sacrificing safety or reliability

Installation and compatibility notes

• Designed to integrate with Siemens QR-series panels and distribution systems for a consistent protection scheme
• Install by a qualified electrician following all applicable electrical codes and Siemens installation guidelines
• Verify that conductors and accessories meet the device's rating and the panel's specifications before commissioning

The QR22B175L 175A 2-Pole 240 V Circuit Breaker from Siemens offers dependable, high-current protection with straightforward integration into QR-series panelboards. It’s a purpose-built solution for preserving electrical system integrity in demanding environments, backed by Siemens’ heritage of reliability and serviceability.