Square D™ brand safety switches are synonymous with leadership in safety, reliability, and performance. The MD Series is designed for the most demanding industrial environments, the MD Motor Disconnect Switch combines reliability, safety, and simplified integration. Its ultra-compact design installs easily, even in tight spaces, while delivering premium performance. It is available in 30A and 60A versions, mounted in a compact NEMA4X polycarbonate enclosure.

• Cost-effective: Up to 50% less expensive than stainless steel switches.

• Space-saving: One of the smallest footprints on the market (6.38" × 3.90" × 4.37")

• Enhanced security: Front locking accepts up to three Ø8mm padlocks

• Environmental versatility: NEMA4X weatherproof enclosure

• Current ratings: 30A 3-pole for motors up to 7.5 HP at 240 VAC, 20 HP at 480 VAC, and 25 HP at 600 VAC (MD3304X). For the 60A 3-pole, for motors up to 20 HP at 240 VAC and 40 HP at 480 or 600 VAC. (MD3604X)

• Number of poles: 3 standard poles (option to add a 4th pole via MDS30P module)

• Mounting: Backplate or panel (see mounting diagrams)

• Accessories: Additional pole module MDS30P / 1NO+1NC auxiliary contacts (MDSAN11)

Ideal for the following applications:

• Food processing, breweries, washdown lines
• Pumps, fans, compressors
• Conveyors and handling machinery
• Dusty or liquid splash environments