Siemens QR22B200L - 200 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Overview

The Siemens QR22B200L is a heavy‑duty 200A, 240V, 2‑pole bolt‑on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short‑circuit protection in panelboards and load centers. Built to Siemens’ exacting standards, this device provides a secure, vibration‑resistant connection and precise protection performance in demanding electrical environments.

Key Features

• Secure bolt‑on mounting creates a rigid, vibration‑resistant bus connection for reliable operation even in equipment subject to movement or vibration.
• Thermal‑magnetic trip unit delivers stable, repeatable protection against overcurrent and short circuits, reducing nuisance trips and ensuring predictable performance under fault conditions.
• OEM‑aligned compatibility designed to work with matching Siemens OEM load centres and panelboards for a seamless, dependable fit.
• Versatile across environments suitable for residential, commercial, and light industrial applications where robust protection is essential.

Technical Specifications

• Manufacturer: Siemens
• Part Number: QR22B200L
• Type: Thermal‑magnetic molded case circuit breaker (MCCB)
• Amperage Rating: 200A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt‑on
• Primary Use: Branch circuit overcurrent and short‑circuit protection

Why this matters

When protecting powerful branch circuits, a secure physical connection and predictable interruption behavior are non‑negotiable. The QR22B200L’s bolt‑on design minimizes movement of the breaker under load, reducing wear at the bus connection and lowering the risk of intermittent faults. The thermal‑magnetic trip element responds quickly to short circuits while preventing unnecessary trips during normal surge events, helping keep critical loads up and running. By aligning with Siemens OEM panels, you get a harmonized protection scheme with consistent trip curves and easier refuge from compatibility concerns when upgrading or expanding panels.

Ideal use cases

• Subpanels fed from main Siemens panelboards requiring a robust 200A, 2‑pole breaker
• Residential service upgrades or expansions where a reliable, high‑amperage protection device is needed
• Commercial lighting and receptacle circuits or small mechanical systems in light industrial settings
• Retrofits or panelboard modernization projects that demand OEM‑matched components for optimal performance

Installation & practical tips

Ensure you’re mounting the QR22B200L in a Siemens panelboard or load center specified for bolt‑on MCCBs. Verify torque specifications and seating to achieve the full vibration resistance the design intends. Because this breaker is designed for high‑current protection, confirm conductor sizing and terminal suitability meet the panel manufacturer’s guidelines to maintain safe, reliable operation over the life of the installation.

What you get with this breaker

The QR22B200L provides a clear path to durable, standards‑compliant protection for demanding electrical networks. With a 200A rating, 240V operation, and a 2‑pole configuration, it’s purpose‑built for heavy‑duty branch circuits in modern panelboards and load centers, delivering dependable protection where it matters most.