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.

  • AX4204UL Noark Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 4NC

    AX4204UL

    $21.00
    $23.33
    Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 4NC
  • AX4211UL Noark Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 1NO+1NC

    AX4211UL

    $12.17
    $13.52
    Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 1NO+1NC
  • AX4213UL Noark Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 1NO+3NC

    AX4213UL

    $21.00
    $23.33
    Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 1NO+3NC
  • AX4220UL Noark Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 2NO

    AX4220UL

    $12.17
    $13.52
    Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 2NO
  • AX4222UL Noark Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 2NO+2NC

    AX4222UL

    $21.00
    $23.33
    Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-500A, 2NO+2NC
  • AX4231UL Noark Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-100A, 3NO+1NC

    AX4231UL

    $21.00
    $23.33
    Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-100A, 3NO+1NC
  • AX4240UL Noark Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-100A, 4NO

    AX4240UL

    $21.00
    $23.33
    Auxiliary Contact, Ex9C/CR, Standard, Front Mount, 09-100A, 4NO
  • AX4311UL Noark Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 09-100A, 1NO+1NC

    AX4311UL

    $12.64
    $14.04
    Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 09-100A, 1NO+1NC
  • AX4402UL Noark Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 115-500A, 2NC

    AX4402UL

    $14.68
    $16.31
    Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 115-500A, 2NC
  • AX4411UL Noark Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 115-500A, 1NO+1NC

    AX4411UL

    $14.68
    $16.31
    Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 115-500A, 1NO+1NC
  • AX4420UL Noark Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 115-500A, 2NO

    AX4420UL

    $14.68
    $16.31
    Auxiliary Contact, Ex9C/CR, Standard, Side Mount, 115-500A, 2NO
  • AX5111 Noark Ex9S32/80 Auxiliary Contact, Front Mount, 1NO + 1NC

    AX5111

    $5.54
    $6.16
    Ex9S32/80 Auxiliary Contact, Front Mount, 1NO + 1NC
  • AX5120 Noark Ex9S32/80 Auxiliary Contact, Front Mount, 2NO

    AX5120

    $5.54
    $6.16
    Ex9S32/80 Auxiliary Contact, Front Mount, 2NO
  • AX5202 Noark Ex9S32/80 Auxiliary Contact, Left Side, 2NC

    AX5202

    $8.55
    $9.50
    Ex9S32/80 Auxiliary Contact, Left Side, 2NC
  • AX5211 Noark Ex9S32/80 Auxiliary Contacy, Left Side, 1NO + 1NC

    AX5211

    $8.55
    $9.50
    Ex9S32/80 Auxiliary Contacy, Left Side, 1NO + 1NC
  • AX5220 Noark Ex9S32/80 Auxiliary Contact, Left Side, 2NO

    AX5220

    $8.55
    $9.50
    Ex9S32/80 Auxiliary Contact, Left Side, 2NO
  • AXFC11 Noark Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~90, 3P, 1NO/1NC

    AXFC11

    $14.60
    $16.22
    Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~90, 3P, 1NO/1NC
  • AXFC11Q Noark Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~90, 3P/4P, Quick Connect, 1NO/1NC

    AXFC11Q

    $12.62
    $14.02
    Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~90, 3P/4P, Quick Connect, 1NO/1NC
  • AXFD11 Noark Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~40, 3P/4P, 1NO+1NC Microswitch

    AXFD11

    $14.60
    $16.22
    Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~40, 3P/4P, 1NO+1NC Microswitch
  • AXFD22 Noark Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~40, 3P/4P, 2NO+2NC Microswitch

    AXFD22

    $21.54
    $23.93
    Auxiliary Contact, Ex9CK, Side Mounted , Ex9CK20~40, 3P/4P, 2NO+2NC Microswitch
  • BBS54-5 | Motor protective circuit breaker | Weg

    BBS54-5

    $24.16
    $60.00
    Motor protective circuit breaker
  • CAS11N3H1200 Noark Cassette for 2500A Frame (A25) ACB, 3 Pole, Horizontal type, 600A/800A/1200A

    CAS11N3H1200

    $3,418.41
    $3,798.23
    Cassette for 2500A Frame (A25) ACB, 3 Pole, Horizontal type, 600A/800A/1200A
  • CAS11N3H2000 Noark Cassette for 2500A Frame (A25) ACB, 3 Pole, Horizontal type, 1600A/2000A

    CAS11N3H2000

    $3,843.40
    $4,270.44
    Cassette for 2500A Frame (A25) ACB, 3 Pole, Horizontal type, 1600A/2000A
  • CAS11N3V1200 Noark Cassette for 2500A Frame (A25) ACB, 3 Pole, Vertical type, 600A/800A/1200A

    CAS11N3V1200

    $3,418.41
    $3,798.23
    Cassette for 2500A Frame (A25) ACB, 3 Pole, Vertical type, 600A/800A/1200A
  • CAS11N3V2000 Noark Cassette for 2500A Frame (A25) ACB, 3 Pole, Vertical type, 1600A/2000A

    CAS11N3V2000

    $3,843.40
    $4,270.44
    Cassette for 2500A Frame (A25) ACB, 3 Pole, Vertical type, 1600A/2000A
  • CAS11N4H1200 Noark Cassette for 2500A Frame (A25) ACB, 4 Pole, Horizontal type, 600A/800A/1200A

    CAS11N4H1200

    $4,785.77
    $5,317.52
    Cassette for 2500A Frame (A25) ACB, 4 Pole, Horizontal type, 600A/800A/1200A
  • CAS11N4H2000 Noark Cassette for 2500A Frame (A25) ACB, 4 Pole, Horizontal type, 1600A/2000A

    CAS11N4H2000

    $5,386.30
    $5,984.78
    Cassette for 2500A Frame (A25) ACB, 4 Pole, Horizontal type, 1600A/2000A
  • CAS11N4V1200 Noark Cassette for 2500A Frame (A25) ACB, 4 Pole, Vertical type, 600A/800A/1200A

    CAS11N4V1200

    $4,785.77
    $5,317.52
    Cassette for 2500A Frame (A25) ACB, 4 Pole, Vertical type, 600A/800A/1200A
  • CAS11N4V2000 Noark Cassette for 2500A Frame (A25) ACB, 4 Pole, Vertical type, 1600A/2000A

    CAS11N4V2000

    $5,386.30
    $5,984.78
    Cassette for 2500A Frame (A25) ACB, 4 Pole, Vertical type, 1600A/2000A
  • CAS12N3H1600 Noark Cassette for 3200A Frame (A32) ACB, 3 Pole, Horizontal type, 800A/1600A

    CAS12N3H1600

    $4,269.45
    $4,743.83
    Cassette for 3200A Frame (A32) ACB, 3 Pole, Horizontal type, 800A/1600A
  • CAS12N3H2500 Noark Cassette for 3200A Frame (A32) ACB, 3 Pole, Horizontal type, 2000A/2500A

    CAS12N3H2500

    $4,802.56
    $5,336.18
    Cassette for 3200A Frame (A32) ACB, 3 Pole, Horizontal type, 2000A/2500A
  • CAS12N3V1600 Noark Cassette for 3200A Frame (A32) ACB, 3 Pole, Vertical type, 800A/1600A

    CAS12N3V1600

    $4,269.45
    $4,743.83
    Cassette for 3200A Frame (A32) ACB, 3 Pole, Vertical type, 800A/1600A
  • CAS12N3V2500 Noark Cassette for 3200A Frame (A32) ACB, 3 Pole, Vertical type, 2000A/2500A

    CAS12N3V2500

    $4,802.56
    $5,336.18
    Cassette for 3200A Frame (A32) ACB, 3 Pole, Vertical type, 2000A/2500A
  • CAS12N3V3200 Noark Cassette for 3200A Frame (A32) ACB, 3 Pole, Vertical type, 3200A Frame

    CAS12N3V3200

    $5,338.41
    $5,931.57
    Cassette for 3200A Frame (A32) ACB, 3 Pole, Vertical type, 3200A Frame
  • CAS12N4H1600 Noark Cassette for 3200A Frame (A32) ACB, 4 Pole, Horizontal type, 800A/1600A

    CAS12N4H1600

    $5,976.86
    $6,640.95
    Cassette for 3200A Frame (A32) ACB, 4 Pole, Horizontal type, 800A/1600A
  • CAS12N4H2500 Noark Cassette for 3200A Frame (A32) ACB, 4 Pole, Horizontal type, 2000A/2500A

    CAS12N4H2500

    $6,724.31
    $7,471.46
    Cassette for 3200A Frame (A32) ACB, 4 Pole, Horizontal type, 2000A/2500A
  • CAS12N4V1600 Noark Cassette for 3200A Frame (A32) ACB, 4 Pole, Vertical type, 800A/1600A

    CAS12N4V1600

    $5,976.86
    $6,640.95
    Cassette for 3200A Frame (A32) ACB, 4 Pole, Vertical type, 800A/1600A
  • CAS12N4V2500 Noark Cassette for 3200A Frame (A32), 4 Pole, Vertical type, 2000A/2500A

    CAS12N4V2500

    $6,724.31
    $7,471.46
    Cassette for 3200A Frame (A32), 4 Pole, Vertical type, 2000A/2500A
  • CAS12N4V3200 Noark Cassette for 3200A Frame (A32) ACB, 4 Pole, Vertical type, 3200A Frame

    CAS12N4V3200

    $7,471.76
    $8,301.96
    Cassette for 3200A Frame (A32) ACB, 4 Pole, Vertical type, 3200A Frame
  • CDP11N Noark Door Frame, for 2500A Frame, A25/ASD25

    CDP11N

    $32.72
    $36.36
    Door Frame, for 2500A Frame, A25/ASD25
  • CDP12N Noark Doorframes for fix type, For 3200A/4000 Frame (A32/A40) ACB

    CDP12N

    $48.98
    $54.42
    Doorframes for fix type, For 3200A/4000 Frame (A32/A40) ACB
  • CKLB21 Noark Lugs to Busbar Conversion Kit (M1) Suitable for Line side OR Load side connections.

    CKLB21

    $12.62
    $14.02
    Lugs to Busbar Conversion Kit (M1) Suitable for Line side OR Load side connections.
  • CKLB22 Noark Lugs to Busbar Conversion Kit (M2) Suitable for Line side OR Load side connections.

    CKLB22

    $12.62
    $14.02
    Lugs to Busbar Conversion Kit (M2) Suitable for Line side OR Load side connections.

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.