Square D QMB3240-M 400A 240V Fusible Panelboard Switch
400A | 240V | 3 Pole | Class H, K, R | Quick-Make Quick-Break
The Square D QMB3240-M 400A 240V Fusible Panelboard Switch is a QMB Safelex (Series 4) series fusible panelboard switch unit rated 400 amps at 240VAC. These quick-make, quick-break switch units mount inside qmb series 4 safelex panelboards to provide branch or main disconnect and overcurrent protection via Class H, K, R fuses.
Technical Specifications
Rated 400A at 240VAC, 3-pole, accepts Class H, K, R fuses, safelex main unit, up to 200kA interrupting rating with appropriate current-limiting fuses. Interlocked cover prevents opening in the ON position and is padlockable. Fuses and mounting hardware sold separately unless noted.
Applications
Replacement and expansion of installed fusible panelboards and switchboards in industrial plants, commercial buildings, and institutions; legacy panel retrofits where matching switch units are required.
