Square D QMB2240J - Fusible Safety Switch 400A@240V (200kA AIC)

Square D QMB2240J is a panel-mounted fusible safety switch designed for industrial circuit protection in 240V applications. This single-configuration switch features a 400A current rating and 200kA interrupting capacity at 240V, housed in a NEMA 1-rated enclosure weighing 65 lb. Constructed with Class J fuses and compatible with ED frames, it meets rigorous safety standards for single-phase power distribution. The 2-pole design provides reliable overcurrent protection for heavy-duty equipment in manufacturing plants, data centers, and utility installations.

Key Features & Specifications

• Type: QMB Saflex fusible safety switch
• Voltage Rating: 240V AC
• Current Rating: 400A
• Configuration: Single
• Poles: 2
• AIC Rating: 200kA@240V
• Fuse Class: J
• NEMA Rating: 1
• Phase: 1
• Compatible Frames: ED
• Weight: 65 lb
• Switch Style: Fusible

Product Identification

• GTIN: 00785901026686