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Relays Parts for Commercial & Industrial Use for Sale

For affordable prices on electrical relays and components, visit midwestsupplyus.com. Midwest Supply is a trusted electronics parts shop that offers affordable prices and free shipping on orders over $999.
View Details Weil Mclain 510350223 Relay Plug-In DPST Holding Coil 24 Volt  | Midwest Supply Us
$50.62
each
View Details York S1-02425060000 Relay Start 60 Hertz 336 Volt  | Midwest Supply Us
$126.86
each
View Details Mcdonnell Miller 110000 Switch 2 Cutoff Replacement 120/240 Volt  | Midwest Supply Us
$251.85
each
View Details York S1-02426089000 Relay Time Delay Motor for Coleman and Evcon Equipment  | Midwest Supply Us
$74.59
each
View Details York S1-02425986000 Control Relay 22V SPST  | Midwest Supply Us
S1-02425986000 | Control Relay 22V SPST | York
Brand: York
SKU: S1-02425986000
$50.88
each
View Details York S1-02425910700 Control Relay DPST 24V 50/60HZ  | Midwest Supply Us
$74.95
each
View Details York S1-02425391700 Relay Start 60 Hertz 332/336 Volt for Compressor  | Midwest Supply Us
$150.74
each
View Details Weil Mclain 510312250 Switch Control High Limit SPST 140 to 240 Degrees Fahrenheit  | Midwest Supply Us
$156.67
each
View Details Burnham Boilers 80160127 Relay SPST with Pilot Duty Contacts  | Midwest Supply Us
$66.63
each
View Details Burnham Boilers 80160096 Relay Plug-In for Blower/Gas Fired Boiler  | Midwest Supply Us
$81.54
each
View Details Tjernlund 950-1067 Timer/Relay  | Midwest Supply Us
950-1067 | Timer/Relay | Tjernlund
Brand: Tjernlund
SKU: 950-1067
$107.77
each

Relays are electrically-operated switches that regulate power to downstream circuits when energized to control low-current equipment, devices, machinery, and electrical systems. 

  • General purpose and power relays use input signals and low voltages to control larger circuits. 
  • Time-delay relays open and close their contacts at preset times. 
  • Monitoring relays detect changes in operational or environmental conditions and protect downstream equipment from damage. 
  • Safety relays monitor operational and environmental conditions and disrupt power to protect workers. 
  • Solid-state relays have no moving parts and provide long service lives. 
  • Alternating relays toggle between loads to sequence load matching and distribute equal run times. 
  • Automotive relays regulate the flow of power through circuits to control vehicle components. 
  • Relay sockets mount on surfaces to interface relays with electrical connections. 

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