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Disconnect Switch

MD40M-3 - Disconnect Switch

Part Number MD40M-3
Product Type Disconnect Switch
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Manufacturer :
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $1,710.00
Sale price $1,710.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
MD40M-3 - Disconnect Switch

MD40M-3 - Disconnect Switch

Regular price $1,710.00
Sale price $1,710.00 Regular price
Unit price
Product description
Shipping

MD40M-3 is a high-performance Disconnect Switch designed for safe electrical isolation in demanding industrial and commercial environments. This model is built to support proper lockout/tagout procedures and deliver dependable disconnection under load, offering long-term durability in active facilities.

Why the MD40M-3 stands out

  • Lockout/tagout ready: engineered to align with maintenance safety protocols, making it straightforward to apply tags and locks during service.
  • Reliable under load: ensures a decisive, clean disconnection even when circuits are energized, reducing the risk of unexpected energization during servicing.
  • Durable for busy facilities: designed to withstand the everyday demands of industrial and commercial use, helping minimize replacement cycles and downtime.

Who benefits from the MD40M-3

  • Facilities managers and maintenance teams seeking safer, more predictable electrical isolation.
  • Electrical engineers and technicians specifying switches for motor control centers, distribution panels, and service entrances.
  • Industries including manufacturing, warehousing, processing, and utilities that require robust, dependable disconnect solutions.

How this disconnect switch improves your operations

The MD40M-3 blends essential safety with practical performance. By enabling clear lockout/tagout procedures, it reduces downtime during preventive maintenance and eliminates the guesswork of restarts. Its dependable disconnection under load protects workers and equipment, while its durable construction supports a longer service life in challenging environments.

Use cases in the real world

  • Isolating power to motors, feeders, and line sections during routine maintenance or repairs.
  • Shutting off power in electrical rooms and switchgear enclosures for safety checks.
  • Serving as a clear, manual disconnect in distribution schemes where reliable isolation is critical.

Installation and procurement notes

The MD40M-3 is designed for straightforward integration into standard electrical distribution arrangements. Reference the model MD40M-3 for clear specification and ordering to ensure compatibility with your current switchgear and safety practices.

Maintenance and ongoing care

To maintain peak performance, schedule regular inspections, verify that lockout/tagout labeling remains legible, and test the switch’s manual operation to ensure smooth, unobstructed actuation. Proper upkeep helps preserve safe, reliable isolation over the long term.

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

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Consistent quality. We’ve added similar items to our regular reorder list.

MRO · Reorder

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Support is responsive when we have questions about fit or application.

Purchasing · Quick answers

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A reliable choice when we need industrial parts on short notice.

Service · Urgent replacement

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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

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