Solid State Relays

Solid state relays (SSRs) are electrical switching devices that serve the same purpose as electromechanical relays but without the moving parts, hence the name 'solid state'. From having no moving parts, SSRs tend to hand longer operational lifetimes as they are not subjected to wear & tear. They are capable of performing switches faster than their electromechanical counterparts as they use the electrical and optical properties of semiconductors to perform the switching functions. RS Components carry an extensive range of solid state relays from trusted brands, including Carlo Gavazzi, Celduc, Omron, Panasonic, Siemens, Sensata/Crydom, and many more.

What are the advantages of SSRs?

The main advantages of solid state relays over conventional electro-mechanical relays is that they have no moving parts to wear out, and therefore no contact bounce issues. SSRs are able to switch both “ON” and “OFF” much faster than a mechanical relay's armature can move, as well as zero voltage turn-on and zero current turn-off eliminating electrical noise and transients. For more information about solid state relays, please see our comprehensive guide to solid state relays.

Solid state relays are available in a range of package options, ranging from just a few volts or amperes to many hundreds of volts and amperes of output switching capability. A small input voltage, typically 3 to 32 volts DC, can be used to control a much large output voltage or current.


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Description Price Minimum Load Current Maximum Load Current Range Mounting Type Series Minimum Load Voltage Maximum Load Voltage Minimum Control Voltage Maximum Control Voltage Switching Type Contact Configuration Terminal Type Output Device Package Style
RS Stock No. 888-6843
BrandRS PRO
kr 138,654
Each (In a Pack of 5)
Units
1 mA 0.5 A - DIN Rail - 10 V 60 V 11 V 30 V DC SPNO Screw MOSFET -
RS Stock No. 922-5194
BrandRS PRO
kr 240,80
Each
Units
0.4 A 40 A rms - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Random SPNO Screw TRIAC -
RS Stock No. 888-6934
BrandRS PRO
kr 309,596
Each (In a Pack of 5)
Units
1 mA 5 A - DIN Rail - 10 V 30 V 11 V 30 V DC SPNO Push In MOSFET -
RS Stock No. 888-6859
BrandRS PRO
kr 332,838
Each (In a Pack of 5)
Units
1 mA 2 A - DIN Rail - 10 V 30 V 11 V 30 V DC SPNO Screw MOSFET -
RS Stock No. 922-5053
BrandRS PRO
kr 547,16
Each
Units
0.4 A 50 A rms - Panel Mount - 48 V ac 480 V ac 3 V dc 32 V dc Random SPNO Screw Thyristor -
RS Stock No. 888-6925
BrandRS PRO
kr 198,86
Each (In a Pack of 5)
Units
1 mA 0.5 A - DIN Rail - 10 V 60 V 11 V 30 V DC SPNO Push In MOSFET -
RS Stock No. 905-4292
BrandRS PRO
kr 500,08
Each
Units
- - - DIN Rail RS PRO - - - - - - - - -
RS Stock No. 905-4277
BrandRS PRO
kr 271,13
Each
Units
- - - DIN Rail RS PRO - - - - - - - - -
RS Stock No. 905-4299
BrandRS PRO
kr 335,56
Each
Units
- - - DIN Rail RS PRO - - - - - - - - -
RS Stock No. 888-6868
BrandRS PRO
kr 328,186
Each (In a Pack of 5)
Units
1 mA 5 A - DIN Rail - 10 V 30 V 11 V 30 V DC SPNO Screw MOSFET -
RS Stock No. 905-4302
BrandRS PRO
kr 279,17
Each
Units
- - - DIN Rail RS PRO - - - - - - - - -
RS Stock No. 121-3889
BrandRS PRO
kr 640,87
Each
Units
- 20 A - DIN Rail - 48Vrms 530 Vrms 90 V ac 280 V ac - SP Screw - -
RS Stock No. 121-3891
BrandRS PRO
kr 527,59
Each
Units
- 20 A - DIN Rail - 48Vrms 530 Vrms 4 V dc 32 V dc - SP Screw - -
RS Stock No. 922-5009
BrandRS PRO
kr 619,45
Each
Units
0.4 A 90 A rms - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Zero Cross SPNO Screw Thyristor -
RS Stock No. 922-5201
BrandRS PRO
kr 240,80
Each
Units
0.4 A 40 A rms - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Zero Cross SPNO Screw TRIAC -
New
RS Stock No. 230-3310
BrandRS PRO
kr 782,74
Each
Units
5 mA 100 A - Panel Mount RM1D 1 V ac/dc 60 V ac/dc - - DC Switching SPNO - Mosfet -
RS Stock No. 922-5062
BrandRS PRO
kr 758,06
Each
Units
0.4 A 75 A rms - Panel Mount - 48 V ac 480 V ac 3 V dc 32 V dc Random SPNO Screw Thyristor -
RS Stock No. 922-5205
BrandRS PRO
kr 276,46
Each
Units
0.1 A 10 A rms - Panel Mount - 24 V ac 280 V ac 90 V ac 280 V ac Random SPNO Screw TRIAC -
RS Stock No. 922-4999
BrandRS PRO
kr 292,11
Each
Units
0.4 A 45 A rms - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Zero Cross SPNO Screw Thyristor -
RS Stock No. 888-6855
BrandRS PRO
kr 271,72
Each (In a Pack of 5)
Units
5 mA 2 A - DIN Rail - 20 V 264 V 11 V 30 V AC SPNO Screw Triac -