Disconnect Switches

Wistex supplies disconnect switches built to meet OSHA lock-out/tag-out requirements while providing safe, reliable isolation for industrial equipment. Choose from fusible, non-fusible, and motor disconnect options up to 2000 A, all available in NEMA 4X and NEMA 12 enclosures for harsh or dusty environments. With rapid shipping and expert guidance, Wistex ensures you get the right switch for the job. Need overcurrent protection? Pair your switch with one of our circuit breakers.

  • ASD25H3FH2000 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Horizontal connection, 2000A

    ASD25H3FH2000

    $12,181.62
    $13,535.13
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Horizontal connection, 2000A
  • ASD25H3FH600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Horizontal connection, 600A

    ASD25H3FH600

    $9,999.44
    $11,110.49
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Horizontal connection, 600A
  • ASD25H3FH800 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Horizontal connection, 800A

    ASD25H3FH800

    $10,525.27
    $11,694.74
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Horizontal connection, 800A
  • ASD25H3FV1200 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 1200A

    ASD25H3FV1200

    $11,051.09
    $12,278.99
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 1200A
  • ASD25H3FV1600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 1600A

    ASD25H3FV1600

    $11,603.21
    $12,892.45
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 1600A
  • ASD25H3FV2000 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 2000A

    ASD25H3FV2000

    $12,181.62
    $13,535.13
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 2000A
  • ASD25H3FV2500 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 2500A

    ASD25H3FV2500

    $12,795.08
    $14,216.75
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 2500A
  • ASD25H3FV600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 600A

    ASD25H3FV600

    $9,999.44
    $11,110.49
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 600A
  • ASD25H3FV800 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 800A

    ASD25H3FV800

    $10,525.27
    $11,694.74
    UL Air disconnect switch, 2500A Frame, ASD25H, 3P, Fixed type, Vertical connection, 800A
  • ASD25H4DH1200 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 1200A

    ASD25H4DH1200

    $17,091.06
    $18,990.07
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 1200A
  • ASD25H4DH1600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 1600A

    ASD25H4DH1600

    $17,949.92
    $19,944.35
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 1600A
  • ASD25H4DH2000 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 2000A

    ASD25H4DH2000

    $18,845.57
    $20,939.52
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 2000A
  • ASD25H4DH600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 600A

    ASD25H4DH600

    $15,471.52
    $17,190.58
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 600A
  • ASD25H4DH800 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 800A

    ASD25H4DH800

    $16,281.30
    $18,090.33
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Horizontal connection, 800A
  • ASD25H4DV1200 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 1200A

    ASD25H4DV1200

    $17,091.06
    $18,990.07
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 1200A
  • ASD25H4DV1600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 1600A

    ASD25H4DV1600

    $17,949.92
    $19,944.35
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 1600A
  • ASD25H4DV2000 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 2000A

    ASD25H4DV2000

    $18,845.57
    $20,939.52
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 2000A
  • ASD25H4DV600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 600A

    ASD25H4DV600

    $15,471.52
    $17,190.58
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 600A
  • ASD25H4DV800 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 800A

    ASD25H4DV800

    $16,281.30
    $18,090.33
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Withdrawable type, Vertical connection, 800A
  • ASD25H4FH1200 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 1200A

    ASD25H4FH1200

    $15,471.52
    $17,190.58
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 1200A
  • ASD25H4FH1600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 1600A

    ASD25H4FH1600

    $16,244.49
    $18,049.43
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 1600A
  • ASD25H4FH2000 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 2000A

    ASD25H4FH2000

    $17,054.26
    $18,949.18
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 2000A
  • ASD25H4FH600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 600A

    ASD25H4FH600

    $13,999.21
    $15,554.68
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 600A
  • ASD25H4FH800 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 800A

    ASD25H4FH800

    $14,735.37
    $16,372.63
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Horizontal connection, 800A
  • ASD25H4FV1200 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 1200A

    ASD25H4FV1200

    $15,471.52
    $17,190.58
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 1200A
  • ASD25H4FV1600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 1600A

    ASD25H4FV1600

    $16,244.49
    $18,049.43
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 1600A
  • ASD25H4FV2000 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 2000A

    ASD25H4FV2000

    $17,054.26
    $18,949.18
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 2000A
  • ASD25H4FV2500 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 2500A

    ASD25H4FV2500

    $17,913.11
    $19,903.45
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 2500A
  • ASD25H4FV600 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 600A

    ASD25H4FV600

    $13,999.21
    $15,554.68
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 600A
  • ASD25H4FV800 Noark UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 800A

    ASD25H4FV800

    $14,735.37
    $16,372.63
    UL Air disconnect switch, 2500A Frame, ASD25H, 4P, Fixed type, Vertical connection, 800A
  • ASD25Q3DH1200 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 1200A

    ASD25Q3DH1200

    $9,280.81
    $10,312.01
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 1200A
  • ASD25Q3DH1600 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 1600A

    ASD25Q3DH1600

    $9,745.29
    $10,828.10
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 1600A
  • ASD25Q3DH2000 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 2000A

    ASD25Q3DH2000

    $10,227.29
    $11,363.66
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 2000A
  • ASD25Q3DH600 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 600A

    ASD25Q3DH600

    $8,395.68
    $9,328.53
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 600A
  • ASD25Q3DH800 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 800A

    ASD25Q3DH800

    $8,842.63
    $9,825.14
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Horizontal connection, 800A
  • ASD25Q3DV1200 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 1200A

    ASD25Q3DV1200

    $9,280.81
    $10,312.01
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 1200A
  • ASD25Q3DV1600 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 1600A

    ASD25Q3DV1600

    $9,745.29
    $10,828.10
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 1600A
  • ASD25Q3DV2000 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 2000A

    ASD25Q3DV2000

    $10,227.29
    $11,363.66
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 2000A
  • ASD25Q3DV600 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 600A

    ASD25Q3DV600

    $8,395.68
    $9,328.53
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 600A
  • ASD25Q3DV800 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 800A

    ASD25Q3DV800

    $8,842.63
    $9,825.14
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Withdrawable type, Vertical connection, 800A
  • ASD25Q3FH1200 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 1200A

    ASD25Q3FH1200

    $8,395.68
    $9,328.53
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 1200A
  • ASD25Q3FH1600 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 1600A

    ASD25Q3FH1600

    $8,816.34
    $9,795.93
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 1600A
  • ASD25Q3FH2000 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 2000A

    ASD25Q3FH2000

    $9,254.52
    $10,282.80
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 2000A
  • ASD25Q3FH600 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 600A

    ASD25Q3FH600

    $7,598.17
    $8,442.41
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 600A
  • ASD25Q3FH800 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 800A

    ASD25Q3FH800

    $8,001.31
    $8,890.34
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Horizontal connection, 800A
  • ASD25Q3FV1200 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Vertical connection, 1200A

    ASD25Q3FV1200

    $8,395.68
    $9,328.53
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Vertical connection, 1200A
  • ASD25Q3FV1600 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Vertical connection, 1600A

    ASD25Q3FV1600

    $8,816.34
    $9,795.93
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Vertical connection, 1600A
  • ASD25Q3FV2000 Noark UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Vertical connection, 2000A

    ASD25Q3FV2000

    $9,254.52
    $10,282.80
    UL Air disconnect switch, 2500A Frame, ASD25Q, 3P, Fixed type, Vertical connection, 2000A

Disconnect Switches We Offer

Our selection includes trusted brands and enclosure styles to suit virtually any industrial application.

Fusible Safety Switches

Fusible Safety Switches

Fusible disconnects provide short-circuit protection and meet NEC service entrance requirements. Ideal for high SCCR applications, these NF-rated switches accept a variety of fuse classes, including J, R, and H.

Non-Fusible Disconnects

Compact and economical, non-fusible disconnect switches offer a reliable means to manually isolate equipment for maintenance. These are commonly used for motor loads when protection is handled upstream.

Non-Fusible Disconnects
Enclosed Motor Disconnects

Enclosed Motor Disconnects

These all-in-one motor disconnects combine a switch and enclosure, making them ideal for local servicing points on rooftop units, pump panels, or machinery.

Applications for Disconnect Switches

Wistex disconnects are field-proven across a wide range of industrial and commercial systems.

  • HVAC units
  • Machine tools
  • Pump panels
  • Rooftop equipment

Complete your motor control system with contactors and soft starters.

Why Choose Wistex for Safety Disconnects

Wistex is trusted for code-compliant solutions that meet real-world demands. We stock a wide range of fusible and non-fusible disconnect switches, with amperages from 30 A to 2000 A, and enclosure options built for your environment. Our experts can help you build out complete solutions with fuse kits, mounting hardware, and made-in-USA selections, all ready to ship fast.

Disconnect Switch FAQs

Need help choosing or sizing a disconnect switch? Start with these commonly asked questions.

A fusible disconnect switch is typically required when short-circuit protection is needed at the point of service, such as service entrances or fault-current applications. Many local codes also specify fusing for added safety.

To size a switch, multiply your motor's Full Load Amps (FLA) by 115%, consider voltage and phase, and select the correct fuse class. Browse our 30A disconnect switch options or filter by amperage to find your match.

A disconnect switch provides a safe means to isolate power, but unlike a circuit breaker, it does not offer overcurrent protection. Disconnects are ideal for lock-out/tag-out compliance and scheduled maintenance.