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. 903-2970
Mfr. Part No.KSI240D40-L
Brandi-Autoc
$57.87
Each
units
- 40 A - Panel Mount - 48 V ac 280 V ac 4 V dc 32 V dc Zero Crossing - Screw SCR, Triac -
RS Stock No. 184-5999
Mfr. Part No.D53TP50D
$343.89
Each
units
0.05 A 50 A rms - Panel Mount - - 530 V rms 4 V 32 V Zero Cross - - SCR -
RS Stock No. 903-2914
Mfr. Part No.KSQF480D60
Brandi-Autoc
$262.45
Each
units
- 60 A - Panel Mount - 48 V ac 530 V ac 4 V dc 32 V dc Zero Crossing - Screw SCR -
RS Stock No. 352-890
Mfr. Part No.HD4850
$132.04
Each
units
40 mA 50 A - Panel Mount - - 530 V - 32 V Zero Cross - - SCR -
RS Stock No. 903-2918
Mfr. Part No.KSI240D25-L(068)
Brandi-Autoc
$44.17
Each
units
- 25 A - Panel Mount - 48 V ac 280 V ac 4 V dc 32 V dc Zero Crossing - Screw SCR, Triac -
RS Stock No. 358-2909
Mfr. Part No.D2450PG
$110.05
Each
units
40 mA 50 A - Panel Mount 1 24 V ac 280 V rms 3 V dc 32 V Zero Cross - Screw SCR -
RS Stock No. 358-2892
Mfr. Part No.D2425PG
$84.61
Each
units
40 mA 25 A - Panel Mount 1 24 V ac 280 V rms 3 V dc 32 V Zero Cross - Screw SCR -
RS Stock No. 827-8642
Mfr. Part No.6210AXXSZS-DC3
$46.83
Each
units
50 mA 10 A - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Zero Crossing SPNO Screw SCR -
RS Stock No. 903-2964
Mfr. Part No.KSI240D25-L
Brandi-Autoc
$43.98
Each
units
- 25 A - Panel Mount - 48 V ac 280 V ac 4 V dc 32 V dc Zero Crossing - Screw SCR, Triac -
RS Stock No. 903-2974
Mfr. Part No.KSI240A25-L
Brandi-Autoc
$49.40
Each
units
- 25 A - Panel Mount - 48 V ac 280 V ac 90 V ac 280 V ac Zero Crossing - Screw SCR, Triac -
RS Stock No. 480-655
Mfr. Part No.MCBC2450CF
$175.36
Each
units
150 mA 50 A rms - Panel Mount - - 280 V rms - 32 V - - - - -
RS Stock No. 922-5198
BrandRS PRO
$50.62
Each
units
0.1 A 10 A rms - Panel Mount - 24 V ac 280 V ac 3 V dc 32 V dc Zero Cross SPNO Screw TRIAC -
RS Stock No. 358-2886
Mfr. Part No.D2410PG
$85.58
Each
units
40 mA 10 A - Panel Mount 1 24 V ac 280 V rms 3 V dc 32 V Zero Cross - Screw SCR -
RS Stock No. 922-2072
Mfr. Part No.SSP3A250BDT
$298.27
Each
units
0.1 A 50 A - Panel Mount - 48 V ac 530 V ac 4 V dc 32 V dc AC 3P-NO Screw SCR -
RS Stock No. 218-1921
Mfr. Part No.A53TP50D
$330.02
Each
units
0.05 A 50 A rms - Panel Mount - - 530 V rms - 280 V rms Zero Cross - - SCR -
RS Stock No. 776-1412
Mfr. Part No.HDC60D160
$281.38
Each
units
2.5 mA 160 A - Panel Mount - 7 V dc 48 V dc 4.5 V dc 32 V dc DC - Quick Connect - -
RS Stock No. 102-5544
Mfr. Part No.KSIM380D10-L
Brandi-Autoc
$30.01
Each
units
- 10 A - Panel Mount - 48 V ac 440 V ac 4 V dc 32 V dc Zero Cross - Screw TRIAC -
RS Stock No. 776-1418
Mfr. Part No.HDC60D120
$250.65
Each
units
2.5 mA 120 A - Panel Mount - 7 V dc 48 V dc 4.5 V dc 32 V dc DC - Quick Connect - -
RS Stock No. 715-0865
Mfr. Part No.SSRT-240A25 2-1393030-0
$84.66
Each
units
0.1 A 25 A - Panel Mount - 24 V rms 280 V rms 90 V ac 280 V ac Zero Crossing SPNO Screw Alternistor Triac Hockey Puck
RS Stock No. 291-2034
Mfr. Part No.D2450-10
$85.67
Each
units
40 mA 50 A rms - Panel Mount - - 280 V rms - 32 V Instantaneous - - SCR -