Leviton MIDSR-23 PowerSwitch Mechanically Interlocked Safety Disconnect Switch with Locking Receptacle Bracket, 30A, Rated IP54 & IP66.

The receptacle is separate. The MIDSR-23 is the mechanically interlocked disconnect switch with a locking receptacle bracket, and it accepts 20A or 30A locking receptacles rated up to 600V with a V-0 flammability rating. Budget for the receptacle and plug as separate line items when you spec the job.

Outdoors under a closed cover, yes. The MIDSR-23 is rated IP54 and Type 3R with the cover closed, which covers rain and splashing. For washdown or hosedown duty you need the Wetguard seal package and Wetguard plugs, which takes the assembly to IP66 and Type 4X. Without those accessories, treat it as a splashproof enclosure only.

It is rated to 600 VAC at 30A. Horsepower rating is receptacle dependent, so the locking receptacle you install in the bracket sets the HP the assembly is good for. Pick the receptacle to the motor, not the other way round.

It covers 2, 3, or 4 pole configurations, so single phase, three phase, and three phase plus neutral all work. The pole count you end up with is set by the locking receptacle you mount in the bracket.

No. The Leviton MIDSR-23 PowerSwitch is a non-fused disconnect, so overcurrent protection has to come from upstream. If you need fusing built into the disconnect itself, the Square D TeSys GS fuse disconnect switch is a 3-pole 30A 600V fused unit at the same amperage and voltage class.

The Leviton MIDSR-23 is a non-fused mechanically interlocked safety disconnect switch rated 30A at 600 VAC, with a bracket that accepts a locking receptacle so the plug cannot be pulled or inserted while the switch is on. The Bryant 30103D is a 103D Series 600V 3-pole manual disconnect switch. Both handle 600V circuits, but the Leviton is the one to specify when the disconnect has to work together with a pin-and-sleeve or locking receptacle at the machine; the Bryant is a straight manual disconnect without that receptacle bracket.

The Leviton MIDSR-23 is rated IP54 and Type 3R with the cover closed, and reaches IP66 and Type 4X when used with the Wetguard seal package and plugs. The Square D MD is a 3-pole motor disconnect supplied in a NEMA 4X enclosure. If the opening is a hose-down area and you want 4X protection without adding a seal kit, the MD gives you that in the base enclosure; the Leviton gets there with the seal package and also lets you land a locking receptacle for a cord-connected machine.

No. The interlock ties the handle to the receptacle so the plug cannot be inserted or withdrawn unless the switch is in the off position, and the switch cannot be turned on unless the plug is fully seated. That is the whole point of a PowerSwitch interlocked unit versus a plain manual disconnect like the Bryant 103D Series 600V 3-pole.

Four mounting feet are included with five position settings, so you have some latitude aligning it to existing holes or strut. Space is provided for either bottom or top conduit entry. The bottom hinge also pivots 180 degrees so you can swing the body out of the way while landing conductors.

Both the body and the handle are molded Valox 357, not metal, which means it will not corrode in damp or chemical areas the way a painted steel enclosure does. The material is rated V-0 per UL 94 for flammability. Cover screws are captive stainless steel so they stay put when the cover is open, and the unit is grey. If a metallic NEMA 4X enclosure is what the spec calls for instead, the Square D MD 3-pole motor disconnect comes in a NEMA 4X enclosure.

It carries UL/CSA, so it is acceptable on both US and Canadian installations. The molded material also carries a V-0 rating per UL 94.

Only if the equipment is cord and plug connected. The MIDSR-23 exists so a plugged load can be disconnected safely without breaking the plug under load. For hardwired equipment that never gets unplugged, a straight rotary or manual disconnect is simpler: the Square D TeSys VLS protruding rotary handle disconnect with a 65x65 mm handle, or the Bryant 103D Series 600V 3-pole manual disconnect.

Only if the application does not need the receptacle interlock. The Square D TeSys VLS is a protruding rotary handle disconnect switch with a 65 x 65 mm handle, intended for door or panel mounting. The Leviton MIDSR-23 is a self-contained mechanically interlocked unit with a bottom hinge that pivots 180 degrees for access, four mounting feet with five position settings, and a bracket that takes 20A or 30A locking receptacles up to 600V. They are not drop-in equivalents.

The Leviton MIDSR-23 is a UL/CSA listed 30A, 600 VAC non-fused disconnect available in 2, 3, or 4 pole configurations with a Valox 357 body and handle rated V-0 per UL 94. For fused 3-pole locations at the same 30A 600V rating, the Square D TeSys GS fits alongside it, and for 3-pole 600V manual disconnects the Bryant 103D Series covers the same voltage class. That keeps one amperage and voltage class across the plant while matching the fusing and enclosure to each location.