Solid State Relays

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 relays armature can move, as well as zero voltage turn-on and zero current turn-off eliminating electrical noise and transients.
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. 171-8926
Mfr. Part No.SC864110
BrandCelduc
HK$426.33
Each
units
5 mA 50 A - Panel Mount - - 520 V rms - 30 V Zero Crossing - - Triac -
RS Stock No. 499-0610
Mfr. Part No.SO863970
BrandCelduc
HK$312.03
Each
units
5 mA 40 A - Panel Mount - 24 V ac 510 V rms - 265 V Zero Crossing - - Triac -
RS Stock No. 776-7707
Mfr. Part No.SGT967760E
BrandCelduc
HK$1,434.85
Each
units
5 mA 75 A - Panel Mount - 24 V ac 600 V ac 10 V ac 24 V ac Zero Crossing - Screw Thyristor -
RS Stock No. 776-7680
Mfr. Part No.SPD03505
BrandCelduc
HK$190.13
Each
units
1 mA 5 A - PCB Mount - 0 V dc 30 V dc 12 V dc 30 V dc DC SPST Push In MOSFET Module
RS Stock No. 372-8773
Mfr. Part No.SCB865300
BrandCelduc
HK$807.51
Each
units
- 50 A - Panel Mount - 24 V ac 600 V ac 10 V dc 30 V dc Zero Crossing - Screw - -
RS Stock No. 685-0974
Mfr. Part No.SUL842070
BrandCelduc
HK$380.91
Each
units
5 mA 23 A - Panel Mount - 12 V ac 275 V ac 3 V dc 32 V dc Zero Crossing - - - -
RS Stock No. 231-3566
Mfr. Part No.SC862110
BrandCelduc
HK$342.43
Each
units
5 mA 25 A - Panel Mount - 24 V ac 520 V rms - 30 V Zero Crossing - - Triac -
RS Stock No. 231-0955
Mfr. Part No.XKA20420
BrandCelduc
HK$292.01
Each
units
5 mA 4 A - DIN Rail - - 275 V rms 6 V 30 V Zero Crossing - - Triac -
RS Stock No. 917-4844
Mfr. Part No.SUL942460
BrandCelduc
HK$320.41
Each
units
5 mA 25 A - DIN Rail - 12 V ac 280 V ac 3 V dc 32 V dc Zero Cross - Plug In Thyristor -
RS Stock No. 172-0519
Mfr. Part No.SG444020
BrandCelduc
HK$1,505.06
Each
units
10 mA 40 A - Panel Mount - 115 V ac 265 V rms - 10 V dc - - - Triac -
RS Stock No. 171-8948
Mfr. Part No.SC864910
BrandCelduc
HK$412.50
Each
units
5 mA 50 A - Panel Mount - - 520 V rms - 240 V Zero Crossing - - Triac -
RS Stock No. 917-4848
Mfr. Part No.SUL965460
BrandCelduc
HK$441.31
Each
units
5 mA 32 A - DIN Rail - 24 V ac 600 V ac 3.5 V dc 32 V dc Zero Cross - Plug In Thyristor -
RS Stock No. 776-7716
Mfr. Part No.SGT967960E
BrandCelduc
HK$1,329.55
Each
units
5 mA 75 A - Panel Mount - 24 V ac 600 V ac 9 V ac 240 V ac Zero Crossing - Screw Thyristor -
RS Stock No. 917-4719
Mfr. Part No.SKA10420
BrandCelduc
HK$129.92
Each
units
1 mA 5 A - PCB Mount - 12 V ac 275 V ac 2.5 V dc 10 V dc Zero Cross - PCB Pin - SIP4
RS Stock No. 499-0496
Mfr. Part No.SO965460
BrandCelduc
HK$262.96
Each
units
5 mA 50 A - Panel Mount - 24 V ac 600 V rms - 32 V Zero Crossing - - Triac -
RS Stock No. 666-4382
Mfr. Part No.SOM02060
BrandCelduc
HK$468.06
Each
units
- 20 A - Panel Mount - 5 V dc 40 V dc 3.5 V dc 32 V dc - - Screw MOSFET -
RS Stock No. 231-3588
Mfr. Part No.SEA05020
BrandCelduc
HK$180.67
Each
units
25 mA 25 mA - PCB Mount - - 8 V dc 180 V ac 280 V rms - - - Bipolar Transistor -
RS Stock No. 231-3500
Mfr. Part No.SEA24020
BrandCelduc
HK$338.86
Each
units
25 mA 25 mA - PCB Mount - - 32 V dc 180 V ac 280 V rms - - - Bipolar Transistor -
RS Stock No. 334-0266
Mfr. Part No.SPA07420
BrandCelduc
HK$192.19
Each
units
50 mA 4 A - PCB Mount - - 275 V ac 12 V ac/dc 32 V Zero Crossing - - Triac -
RS Stock No. 425-4734
Mfr. Part No.SKA20440
BrandCelduc
HK$171.63
Each
units
5 mA 4 A - PCB Mount - - 460 V ac 4 V dc 30 V Zero Crossing - - Triac -