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MDI

Mercury Displacement Industries or known better as MDI Inc. Got our start in 1975 as a small family owned business. Specializing in producing mercury relays and other mercury related products. In 1990, MDI added mercury floats to its list of manufactured products. MDI quietly became a leader for both relay and float switches.

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Picture of SWITCH FLOAT MERCURY MEDIUM

SWITCH FLOAT MERCURY MEDIUM

MERCURY DISP:EM10W2004

SKU: MERCURY DISP:EM10W2004

$122.25

Picture of SPNO 24V MERC CONTACTOR FASTON

SPNO 24V MERC CONTACTOR FASTON

MERCURY DISP:35NO-24AF

SKU: MERCURY DISP:35NO-24AF

$78.59

Picture of SINGLE POLE NORMALLY OPEN 24V

SINGLE POLE NORMALLY OPEN 24V

MERCURY DISP:35NO-24A

SKU: MERCURY DISP:35NO-24A

$73.46

Picture of N/O BLACK FLOAT SWITCH

N/O BLACK FLOAT SWITCH

MERCURY DISP:EM10W2504

SKU: MERCURY DISP:EM10W2504

$72.67

Picture of N/C YELLOW FLOAT SWITCH

N/C YELLOW FLOAT SWITCH

MERCURY DISP:EB1CW1404

SKU: MERCURY DISP:EB1CW1404

$62.58

Picture of MERCURY RELAY,2 POLES,30A,120V

MERCURY RELAY,2 POLES,30A,120V

MERCURY DISP:230NO-120A-18

SKU: MERCURY DISP:230NO-120A-18

$121.64

Picture of MERCURY CONTACTOR,24VAC,N/O,1P

MERCURY CONTACTOR,24VAC,N/O,1P

MERCURY DISP:35NO-24AT

SKU: MERCURY DISP:35NO-24AT

$67.98

Picture of MECHANICAL FLOAT SWT 120V 13A

MECHANICAL FLOAT SWT 120V 13A

MERCURY DISP:GT30T2001

SKU: MERCURY DISP:GT30T2001

$121.11

Picture of MECHANICAL FLOAT

MECHANICAL FLOAT

MERCURY DISP:JGR2DW5000

SKU: MERCURY DISP:JGR2DW5000

$189.60

Picture of MECHANICAL DAMPER ARM SWITCH

MECHANICAL DAMPER ARM SWITCH

MERCURY DISP:SP-1347-L6

SKU: MERCURY DISP:SP-1347-L6

$117.92

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