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. 472-9250
Mfr. Part No.3RF2170-1AA04
BrandSiemens
MYR353.53
Each
units
0.5 A 70 A - Panel Mount - 230 V 460 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
RS Stock No. 612-9012
Mfr. Part No.3RF2410-1AC45
BrandSiemens
MYR1,053.94
Each
units
0.1 A 10.5 A - DIN Rail - 48 V 600 V 4 V dc 30 V dc Zero Crossing 3P-NO Screw Thyristor -
RS Stock No. 612-9034
Mfr. Part No.3RF2430-1AC45
BrandSiemens
MYR1,316.06
Each
units
0.5 A 30 A - DIN Rail - 48 V 600 V 4 V dc 30 V dc Zero Crossing 3P-NO Screw Thyristor -
RS Stock No. 472-9238
Mfr. Part No.3RF2130-1AA06
BrandSiemens
MYR414.96
Each
units
0.5 A 30 A - Panel Mount - 400 V 600 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
RS Stock No. 612-9040
Mfr. Part No.3RF2440-1AC45
BrandSiemens
MYR1,541.44
Each
units
0.5 A 40 A - Panel Mount - 48 V 600 V 4 V dc 30 V dc Zero Crossing 3P-NO Screw Thyristor -
RS Stock No. 472-9042
Mfr. Part No.3RF2120-1AA02
BrandSiemens
MYR234.57
Each
units
0.1 A 20 A - Panel Mount - 24 V 230 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
RS Stock No. 472-8998
Mfr. Part No.3RF2070-1AA02
BrandSiemens
MYR249.88
Each
units
0.5 A 70 A - Panel Mount - 24 V 230 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
RS Stock No. 472-9121
Mfr. Part No.3RF2050-1AA04
BrandSiemens
MYR354.95
Each
units
0.5 A 50 A - Panel Mount - 230 V 460 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
New
RS Stock No. 211-4923
Mfr. Part No.3RF2120-2AA04
BrandSiemens
MYR259.59
Each
units
20 A - SIRIUS - 3RF21 48 V 460 V - - Zero Point SPNO - - -
RS Stock No. 467-4891
Mfr. Part No.3RF2340-1AA02
BrandSiemens
MYR354.07
Each
units
0.5 A 40 A Sirius Classic DIN Rail - 24 V 230 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
New
RS Stock No. 211-4911
Mfr. Part No.3RF2020-1AA42
BrandSiemens
MYR229.05
Each
units
20 A - SIRIUS - 3RF2 24 V 230 V - - Zero Point SPNO - - -
New
RS Stock No. 210-4393
Mfr. Part No.3RF2310-1AA45
BrandSiemens
MYR397.02
Each
units
100 mA 10.5 A SIRIUS Screw Fitting 3RF23 48 V 600 V - - DC SPNO - Thyristor -
New
RS Stock No. 213-0739
Mfr. Part No.3RF3410-1BB04
BrandSiemens
MYR953.05
Each
units
500 mA 9.2 A SIRIUS DIN Rail 3RF34 48 V 480 V - - DC - - Thyristor -
RS Stock No. 518-7540
Mfr. Part No.3RF2320-1BA02
BrandSiemens
MYR390.94
Each
units
0.5 A 20 A Sirius Classic DIN Rail - 24 V ac 230 V ac 15 V dc 24 V dc Instantaneous SPNO Screw Thyristor -
RS Stock No. 472-9272
Mfr. Part No.3RF2130-1AA04
BrandSiemens
MYR291.54
Each
units
0.5 A 30 A - Panel Mount - 230 V 460 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
New
RS Stock No. 211-3665
Mfr. Part No.3RF2320-1DA02
BrandSiemens
MYR458.62
Each
units
0.5 A 20 A SIRIUS DIN Rail 3RF 24 V 230 V - - Short-circuit resistant with B-automatic device SPNO - Thyristor -
New
RS Stock No. 213-0729
Mfr. Part No.3RF2310-1AA22
BrandSiemens
MYR390.17
Each
units
100 mA 10.5 A SIRIUS Screw Fitting 3RF23 24 V 230 V - - AC SPNO - Thyristor -
RS Stock No. 472-9137
Mfr. Part No.3RF2030-1AA04
BrandSiemens
MYR321.44
Each
units
0.5 A 30 A - Panel Mount - 230 V 460 V 15 V dc 24 V dc Zero Crossing SPNO Screw Thyristor -
RS Stock No. 203-2066
Mfr. Part No.3RF2050-1AA44
BrandSiemens
MYR354.95
Each
units
5 A 50 A SIRIUS DIN Rail 3RF20 48 V 460 V - - Protective SPNO - Mosfet -
New
RS Stock No. 213-0548
Mfr. Part No.3RF2310-3AA04
BrandSiemens
MYR378.06
Each
units
0.1 A 10.5 A SIRIUS DIN Rail 3RF 48 V 460 V - - Zero Point Switching SPNO - Thyristor -