-
MDI Mercury Relays
335NC-220A-18
Mercury Relay, 3 Pole, 35 Amp (35A), NC, 208/240V, Steel Strap Around Poles
$151.22$151.22 -
MDI Mercury Relays
235NO-220AH-18
Mercury Relay, 2 Pole, 35 Amp (35A), NO, 208/240V, Steel Strap Around Poles
$100.78$100.78 -
MDI Mercury Relays
335NC-120AT-18
Mercury Relay, 3 Pole, 35 Amp (35A), NC, 120VAC, Steel Strap Around Poles
$138.05$138.05 -
MDI Mercury Relays
235NO-220AT-18
Mercury Relay, 2 Pole, 35 Amp (35A), NO, 208/240V, Steel Strap Around Poles
$102.58$102.58 -
MDI Mercury Relays
335NC-120A-18
Mercury Relay, 3 Pole, 35 Amp (35A), NC, 120VAC, Steel Strap Around Poles
$135.47$135.47 -
Available Now! 
Available Now!MDI Mercury Relays
330NO-24D
Mercury Relay, 3 Pole, 30 Amp (30A), NO, 24VDC, Nylon Strap Around Poles
$86.95$86.95 -
MDI Mercury Relays
100NC-24A
Mercury Relay, 1 Pole, 100 Amp (100A), NC, 24VAC, Nylon Strap Around Poles
$149.53$149.53 -
MDI Mercury Relays
330NO-24A
Mercury Relay, 3 Pole, 30 Amp (30A), NO, 24VAC, Nylon Strap Around Poles
$86.95$86.95 -
Available Now! 
Available Now!MDI Mercury Relays
100NC-220A
Mercury Relay, 1 Pole, 100 Amp (100A), NC, 208/240V, Nylon Strap Around Poles
$157.34$157.34 -
Available Now! 
Available Now!MDI Mercury Relays
330NO-220AU
Mercury Relay, 3 Pole, 30 Amp (30A), NO, 208/240V, Universal Mounting Plate
$116.72$116.72 -
Available Now! 
Available Now!MDI Mercury Relays
360NO-24A-18
Mercury Relay, 3 Pole, 60 Amp (60A), NO, 24VAC, Steel Strap Around Poles
$180.47$180.47 -
Available Now! 
Available Now!MDI Mercury Relays
100NC-120A
Mercury Relay, 1 Pole, 100 Amp (100A), NC, 120VAC, Nylon Strap Around Poles
$154.06$154.06
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.
Product
Price
Action