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Disconnect Switches

Technical Tips & FAQs
Disconnect Switch tech tips
Disconnect Switches
Technical Tips & FAQs
Tech Tips
    • Contactors
    • Contactors
    • Overload Protection
    • Overload Protection
    • Starters & Enclosed Products
    • Starters & Enclosed Products
    • Motor Controllers & MCCBs
    • Motor Controllers & MCCBs
    • Softstarters
    • Softstarters
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    • Circuit Protection
    • Disconnect Switches
    • Disconnect Switches
    • Rotary Cam Switches
    • Rotary Cam Switches
    • Control Relays & Timers
    • Control Relays & Timers
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    • Pilot Devices
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    • Signaling Solutions
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    • Terminal Blocks
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    • Power Supplies
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    • Electrical Industry Codes
 
 
Fusible and Non-Fusible Switching from 30 to 1200A, suitable for use in service entrance applications
Disconnect Switch Terminal Temperature Rating

What is the terminal temperature rating for the L11 disconnect switches? Are they rated for 60°C or 75°C wire?

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Fusible and Non-Fusible Switching from 30 to 1200A, suitable for use in service entrance applications
L11 Disconnect Switch Fuse Mounting Torque Requirements

What are the fuse mounting torque requirements for the L11 fusible disconnects 100A to 800A?

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Sprecher & Schuh Series L11 200A Non-Fusible Disconnect Switch
L11 Disconnect Switch Mounting Directions And Reverse Feed

Can the L11 disconnect switches be rotated 180 degrees and mounted upside down, or sideways in a 90 degree orientation? Can you reverse or bottom feed these switches so that the incoming power is wired to the load side of the switch?

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Sprecher & Schuh Series L11-30-HDWR kit showing screws, setscrew, and pin
What Mounting Hardware Is Included With L11 Disconnect Switches, Sizes 30 To 60 Amps?

Are there replacement parts for hardware bags supplied with L11-C30-1753, L11-J30-1753, L11-N30-1753, L11-J60-1753, L11-J60-1753, L11-N60-1753 disconnect switches? Are there part numbers available for sale to order the mounting screws, the shaft set screw and the shaft clip or hair pin components included in the hardware bag supplied with these switches?

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Sprecher & Schuh Series L11 400A Non-fusible disconnect swith Load side hardware
What Mounting Hardware Is Included With L11 Non-Fused Disconnect Switches?

What Mounting Hardware Is Included With L11-NU100, NU200, NU400, NU600, NU800 and NU1200 Non-Fusible Disconnect Switches? Are replacement parts available? What hardware do I use to mount the switch in an enclosure?

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Sprecher & Schuh L10-HS handle and shaft on L11-30-1753 disconnect switch
L11 Handle Shaft Dimensions

What is the dimension of the square shaft which inserts into the L11 disconnect switches?

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Sprecher & Schuh Series L11-TL Lug accessory for disconnect switches
What Hardware Is Included With L11-TL Lug Kits?

The hardware included with various L11 Disconnect Switches and Lug kits is dependent on the size switch and lugs ordered.

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Fusible and Non-Fusible Switching from 30 to 1200A, suitable for use in service entrance applications
Minimum Handle To Hinge Distance For L11 Disconnect Switches

What is the Minimum distance from the enclosure door hinge to the center of a L11 rotary handle shaft? The answer depends on what size L11 disconnect switch is being enclosed.

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Sprecher & Schuh Series LA7-16-1753 disconnect switch with auxiliary accessory
What Are L7 Disconnect Switch Auxiliaries Used For?

What are LA7-P-D10, LE7-P-D10, LA7-16-P-D10 and LE7-16-P-D10 auxiliary contacts used for when attached to an L7 UL508 “At Motor Disconnect” Switch?

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cURus Logo
Short Circuit Current Ratings (SCCR) And Control Circuits

Do the components in a control circuit have a short circuit current rating?
UL and NEC rules define which components in a control panel require a short circuit current rating.

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A UL approved device for applications up to 100A. This modular and flexible design minimizes inventory.
Can LA7/LE7 And LE2/LA2 Switches Be Used As A Main Disconnect?

L2 and L7 switches are versatile, but should not be used for the main disconnect for several reasons.

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Sprecher & Schuh Series L11 Disconnect switch mounting foot and cover
What Mounting Hardware Is Included With L11-J100…L800 Disconnect Switches?

The L11 Disconnect Switches for J Type and L Type Fuses, sizes 100 thru 800 Amps, each require different size hardware. Some hardware is not included with the switch due to the variety of mounting applications possible. Specific sizes of screws and box lugs are required for each size switch.

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Fusible and Non-Fusible Switching from 30 to 1200A, suitable for use in service entrance applications
Manual Switching Devices

Which control, load or fusible disconnect switches are best for your application?

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