Designed for robust electrical distribution systems, the Schneider Electric Square D QMB367W is a premium fusible switch unit engineered for QMB series panelboards. This 3-pole, 800 Amp switch operates at a maximum voltage of 600V AC, providing essential overcurrent and short circuit protection. It serves as a critical disconnect between the power source and the load, ensuring safe and reliable operation in demanding industrial environments.

Technical details

• Series: QMB
• Switch Type: Fusible Switch Unit
• Poles: 3
• Amperage Rating: 800 Amps
• Voltage Rating: 600V AC
• Fuse Compatibility: Class L fuses; adaptable for Class T fuses
• Functionality: Overcurrent protection, short circuit protection, load-source disconnect
• Panelboard Compatibility: Designed for QMB series panelboards

Applications & compatibility

The QMB367W is commonly deployed in heavy-duty electrical distribution applications within manufacturing facilities, processing plants, and large commercial buildings. Its robust construction and high amperage rating make it suitable for main disconnects, feeder protection, and motor control circuits where reliable fault interruption and isolation are paramount.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the QMB367W or contact our technical team for cross-reference assistance with compatible QMB series components.