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MDI mercury contactors/relays are durable and float switches and liquid level controls for water and sewage Liquid Level Control Floats
Contactors and Solid State Relays,
Tilt, Tip-over and Proximity Switches
Motion and Shock Sensors.
MDI Mercury Displacement Industries Relays, Contactors, Liquid Level Control Floats, Tilt and Tipover switches
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Relay, Vertical, Liquid Level Control Floats, Tilt and Tipover switches
Vertical Switch


* Price quote form * Float Drawings *
* Buy Online! *

MDI Vertical Liquid Level Control Switch
Vertical Switch



VS Series Sump Pump Switch Ratings:
Up to 15 AMP @ 120/240 V 50/60 Hz.
Up to 3/4 H.P. @ 120/240 V 50/60 Hz.

10 AMP Switch 10' foot cord
120 VAC Piggyback Plug
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10 AMP Switch 20' foot cord
120 VAC Piggyback Plug
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15 AMP Switch 10' foot cord
120 VAC Piggyback Plug
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15 AMP Switch 20' foot cord
120 VAC Piggyback Plug
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For Liquid Level Control Floats, Contactors and Solid State Relays, Tilt, and Tipover contact MDI TODAY!

* P. O. Box 710 * 25028 U.S. 12 East * Edwardsburg, Michigan * 49112 *
* PH. (269) 663-8574 * FX. (269) 663-2924 *
* Toll Free US and Canada (800) 634-4077 *