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$148.17$148.17 -
MDI Mercury Relays
3100NO-24D
Mercury Relay, 3 Pole, 100 Amp (100A), NO, 24VDC, Metal Strap Around Poles
$386.78$386.78 -
Available Now! 
Available Now!MDI Mercury Relays
100NO-220AH
Mercury Relay, 1 Pole, 100 Amp (100A), NO, 208/240V, Inductive/Lighting Loads, Nylon Strap Around Poles
$135.78$135.78 -
$161.23$161.23 -
Available Now! 
Available Now!MDI Mercury Relays
3100NO-220A
Mercury Relay, 3 Pole, 100 Amp (100A), NO, 208/240V, Metal Strap Around Poles
$410.22$410.22 -
$148.17$148.17 -
Available Now! 
Available Now!MDI Mercury Relays
230NO-120AU
Mercury Relay, 2 Pole, 30 Amp (30A), NO, 120VAC, Universal Mounting Plate
$66.25$66.25 -
MDI Mercury Relays
35NC-24A
Mercury Relay, 1 Pole, 35 Amp (35A), NC, 24VAC, Nylon Strap Around Poles
$45.31$45.31 -
$148.17$148.17 -
MDI Mercury Relays
2100NO-24D
Mercury Relay, 2 Pole, 100 Amp (100A), NO, 24VDC, Metal Strap Around Poles
$258.67$258.67 -
MDI Mercury Relays
35NC-220A
Mercury Relay, 1 Pole, 35 Amp (35A), NC, 208/240V, Nylon Strap Around Poles
$50.63$50.63 -
$148.17$148.17
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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