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$148.17$148.17 -
$148.17$148.17 -
$179.42$179.42 -
$161.23$161.23 -
$148.17$148.17 -
Available Now! 
Available Now!MDI Mercury Relays
330NO-120AU
Mercury Relay, 3 Pole, 30 Amp (30A), NO, 120VAC, Universal Mounting Plate
$98.91$98.91 -
MDI Mercury Relays
330NO-120AHU
Mercury Relay, 3 Pole, 30 Amp (30A), NO, 120VAC, High Voltage, Universal Mounting Plate
$98.91$98.91 -
MDI Mercury Relays
60NC-24D
Mercury Relay, 1 Pole, 60 Amp (60A), NC, 24VDC, Nylon Strap Around Poles
$66.09$66.09 -
MDI Mercury Relays
100NO-24A
Mercury Relay, 1 Pole, 100 Amp (100A), NO, 24VAC, Nylon Strap Around Poles
$127.97$127.97 -
$148.17$148.17 -
Available Now! 
Available Now!MDI Mercury Relays
330NO-120AH
Mercury Relay, 3 Pole, 30 Amp (30A), NO, 120VAC, Inductive/Lighting Loads, Nylon Strap Around Poles
$92.19$92.19 -
MDI Mercury Relays
100NO-220AH-6A
Mercury Relay, 1 Pole, 100 Amp (100A), NO, 208/240V, High Voltage, SPST, Nylon Strap Around Poles
$165.08$165.08
MDI manufacturers mercury relays and also offers a complete line of level controls, SSRs and switches.
Their contactors are rated from 30 to 100 amps and are encased in hermetically sealed stainless steel tubes to provide reliable switching for millions of operations.
MDI was founded in 1975, remains family owned and is manufactured right in Michigan.
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