Solid State Relays
Shop by Category
Best Selling
19,737 Results
- Brand New · UnbrandedC $8.68 to C $34.32Free shipping
- Brand New · UnbrandedC $28.72 to C $70.57C $9.34 shipping
- Brand New · UnbrandedC $27.45 to C $84.61Was: C $90.02was - C $90.02C $4.54 shipping
- Brand New · UnbrandedC $1.70 to C $15.11Was: C $15.76was - C $15.76C $4.14 shipping
- Brand New · UnbrandedC $18.89or Best OfferFree shipping
- Brand New · UnbrandedC $5.73 to C $141.79C $8.29 shipping
- Brand New · UnbrandedC $6.91C $5.33 shipping120 sold
- C $18.12 to C $37.89Free shipping
- C $43.04or Best OfferC $16.00 shipping
- Brand New · UnbrandedC $14.89or Best OfferC $2.77 shipping
- Brand New · UnbrandedC $8.37 to C $171.33C $5.94 shipping
- Brand New · UnbrandedC $55.80or Best OfferC $2.77 shipping
- Pre-Owned · AutomationDirectC $19.99C $19.99 shipping
- Brand New · UnbrandedC $24.97 to C $77.00Was: C $81.92was - C $81.92C $4.54 shipping
- Brand New · UnbrandedC $5.76 to C $206.04C $4.99 shipping
- Brand New · UnbrandedC $31.13 to C $95.95Was: C $101.00was - C $101.00Free shipping
- C $10.50 to C $87.54C $2.77 shipping
- Brand New · CrydomC $63.64or Best OfferFree shipping
- Brand New · UnbrandedC $11.33C $2.49 shipping
- C $10.95or Best Offer
- Brand New · UnbrandedC $10.77 to C $19.76Free shipping
- Brand New · UnbrandedC $1.37 to C $12.44Free shipping
- Brand New · UnbrandedC $7.00Was: C $7.61was - C $7.61or Best OfferFree shipping
- Brand New · UnbrandedC $2.84 to C $4.14C $5.33 shipping
- C $8.29 to C $31.14C $2.77 shipping
- Brand New · UnbrandedC $39.08Was: C $42.03was - C $42.03or Best OfferC $6.92 shipping
- Brand New · CrydomC $59.07or Best Offer
- Brand New · UnbrandedC $40.80 to C $128.27Free shipping
- Brand New · UnbrandedC $9.41 to C $214.28C $5.44 shipping
- Brand New · UnbrandedC $21.21 to C $165.70C $7.71 shipping
- Brand New · UnbrandedC $190.99Was: C $207.60was - C $207.60or Best OfferC $2.62 shipping
- New (Other) · AutomationDirectC $249.12
- Brand New · UnbrandedC $5.80 to C $88.55C $2.77 shipping
- Brand New · UnbrandedC $64.87Was: C $70.51was - C $70.51or Best OfferC $4.00 shipping
- Brand New · CrydomC $157.67or Best OfferFree shipping
- Brand New · OmronC $44.79Free shipping
- C $9.87 to C $12.47C $8.30 shipping32 sold
- Pre-OwnedC $38.86Was: C $85.14was - C $85.14or Best Offer
- Brand New · UnbrandedC $34.18 to C $107.46Was: C $66.34was - C $66.34C $4.54 shipping
- Brand New · UnbrandedC $7.30 to C $157.27C $5.44 shipping
- Brand New · UnbrandedC $12.36Was: C $13.01was - C $13.01or Best OfferFree shipping
- Brand New · UnbrandedC $10.28C $5.33 shipping
- Brand New · UnbrandedC $3.11 to C $5.05C $5.33 shipping
- C $66.68or Best OfferFree shipping
- Brand New · UnbrandedC $37.94or Best OfferFree shipping
- Brand New · UnbrandedC $21.41Was: C $24.90was - C $24.90Free shipping
- Brand New · UnbrandedC $1.45 to C $6.73Was: C $7.09was - C $7.09C $2.75 shipping
- Brand New · UnbrandedC $67.12C $5.49 shipping
- New (Other) · Phoenix ContactC $18.14C $25.62 shipping
- C $41.05or Best OfferFree shipping
- Brand New · CrydomC $147.83or Best OfferC $19.09 shipping
- Brand New · UnbrandedC $44.08Was: C $48.44was - C $48.44or Best OfferC $4.00 shipping
- C $27.67C $15.54 shipping69 sold
- Brand New · UnbrandedC $22.55 to C $44.27C $15.39 shipping
- Brand New · UnbrandedC $2.77C $5.33 shipping
- Brand New · UnbrandedC $36.04 to C $122.28Was: C $40.14was - C $40.14C $4.15 shipping
- Brand New · UnbrandedC $7.60or Best OfferFree shipping78 sold
- Brand New · UnbrandedC $23.06Was: C $24.28was - C $24.28or Best OfferFree shipping327 sold
- Pre-Owned · TeledyneC $249.11Was: C $276.79was - C $276.79or Best Offer
- Brand New · UnbrandedC $5.98 to C $103.17C $7.71 shipping
You May Also Like
Solid State Relays
Solid-state relays are designed to switch circuitry on and off. When there is a need for switching a load of power over a circuit, solid-state relays are an excellent option.
What is a solid-state relay?A solid-state relay is an electrical device that switches on or off based on an external voltage of power applied to control terminals on its exterior. The function of a solid-state relay is similar to that of an electromechanical relay; the major difference between the two is that solid-state relays do not have any moving parts. Instead, the switching is performed using a series of electrical components.
How does a solid-state relay work?When an electrical current is passed over the control terminals of the relay, it activates a switching circuit that switches the power output of the relay on or off. Because of the way that the circuits would interact if directly connected, the control and the controlled must be kept separate and isolated from each other. One method that the control section can use to switch the controlled side is by using a light-emitting diode (LED), which activates a photo-sensitive diode on the controlled section. The photo-sensitive diode then triggers another component that handles the actual switching of the secondary circuit of power.
What are the features of a solid-state relay?Solid-state relays (SSRs) have a number of advantages over their mechanical cousins.
- Size: SSRs are inherently much smaller than mechanical devices, which enable them to be used in situations where space comes at a premium. Some SSRs are packaged in a case that is the same size as a mechanical switching device, which makes it easy to swap out the components without having to rework any of the existing infrastructures around the switch.
- Noise: Because they have no moving parts, solid-state relays are completely silent. There is no audible switching noise when they are in use, which can be beneficial when it is necessary to have many switches in an area where they would be heard if they were mechanical.
- Speed: The lack of moving parts also makes these devices fast. The delay time for most SSRs is nearly entirely dependent on how long it takes for the LED to light up, which is on the order of a couple of microseconds or milliseconds.
- Increased life span: With no moving parts to break or electrical contacts to corrode, these devices can have long life spans.