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Solid State Relays

Solid state relays, or SSRs are electrical switching devices that serve the same purpose as electromechanical relays, but without the moving parts hence the name 'solid state'. By having no moving parts, the SSR tends to have a longer operational lifetime as they are not subjected to wear and tear.

Solid state relays can switch faster than their electromechanical counterparts, as they use the electrical and optical properties of semiconductors to perform the switching functions. RS offer an extensive range of solid state relays from trusted brands, including Celduc, Sensata/ Crydom, Omron, Phoenix Contact, and many others.

Where are solid state relays used?

SSR’s are used across a wide range of industrial settings such as industrial control, robotics, data acquisition, medical equipment, data acquisition, and are used to control power delivery for lighting, heating, motion-based equipment as well as numerous other applications due to the highly diverse nature of the SSR.

What are the advantages of an SSR?

The main advantages of SSR relays over conventional electro-mechanical relays is that they have no moving parts to wear out, and therefore no contact bounce issues. SSRs can 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 both electrical noise and transients. For more information, please see our comprehensive guide to solid state relays.

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In Stock Crydom DR67 Series Solid State Relay, 75 A Load, DIN Rail Mount, 600 V ac Load, 32V Control RS Stock No. 227-0903 Mfr. Part No. DR6760D75P Subtotal (1 unit) £312.53(exc. VAT) £312.53/unit Quantity	Crydom	75A	Solid State Relay	DIN Rail	-	600V ac	48V ac	32V	4V	-	-	-	-	DR67	-	Cage Clamp	3PST	IP20	-40°C	-	-	Zero Voltage Turn-On Switching	80°C	-	-	-	91.8mm	147.8mm	-	-	VDE, EMC, cULus, CE, GBT 26572-2011, IEC, RoHS	67.5mm	-	-
In Stock i-Autoc KSI Series Solid State Relay, 25 A Load, Panel Mount, 280 V ac Load, 280V ac Control RS Stock No. 903-2974 Mfr. Part No. KSI240A25-L Subtotal (1 unit) £21.99(exc. VAT) £21.99/unit Quantity	i-Autoc	25A	Solid State Relay	Panel	-	280V ac	48V ac	280V ac	90V ac	-	-	-	-	KSI	-	Screw	-	IP20	-30°C	-	-	Zero Cross Switching	80°C	-	-	-	27mm	58.6mm	-	-	RoHS, CE, CCC	45.7mm	-	-
In Stock ABB R600 Series Solid State Relay, 2 A Load, DIN Rail Mount, 400 V ac Load, 24V dc Control RS Stock No. 703-9967 Mfr. Part No. 1SNA645051R0400 OBOC2000-24VDC Subtotal (1 unit) £30.05(exc. VAT) £30.05/unit Quantity	ABB	2A	Solid State Relay	DIN Rail	-	400V ac	1V	24V dc	1.2V	-	-	-	-	R600	-	Screw	-	IP20	-20°C	-	-	-	70°C	-	-	-	6mm	70mm	-	-	CEI 60664-1, CEM:IRC 1000-4-2, CEI 1131-2, CEI 947-7-1, UL 94 V0, CEI 947-1	6mm	-	-
In Stock Crydom CW24 Series Solid State Relay, 50 A Load, Panel Mount, 280 V ac Load, 280V ac Control RS Stock No. 776-1780 Mfr. Part No. CWU2450P Subtotal (1 unit) £51.22(exc. VAT) £51.22/unit Quantity	Crydom	50A	Solid State Relay	Panel	-	280V ac	24V ac	280V ac	20V ac/dc	-	-	-	-	CW24	-	Screw	-	-	-30°C	-	-	Zero Cross	80°C	-	-	-	58.4mm	45.7mm	-	-	RoHS	-	-	-
In Stock i-Autoc KSI Series Solid State Relay, 40 A Load, Panel Mount, 280 V ac Load, 32V Control RS Stock No. 903-2970 Mfr. Part No. KSI240D40-L Subtotal (1 unit) £19.03(exc. VAT) £19.03/unit Quantity	i-Autoc	40A	Solid State Relay	Panel	-	280V ac	48V ac	32V	4V	-	-	-	-	KSI	-	Screw	-	IP20	-30°C	-	-	Zero Cross Switching	80°C	-	-	-	27mm	58.6mm	-	-	CCC, CE, RoHS	45.7mm	-	-
In Stock Crydom ED Series Solid State Relay, 3 A Load, DIN Rail Mount, 280 Vrms Load, 15V dc Control RS Stock No. 740-1346 Mfr. Part No. ED24D3 Subtotal (1 unit) £14.83(exc. VAT) £14.83/unit Quantity	Crydom	3A	Solid State Relay	DIN Rail	-	280Vrms	24Vrms	15V dc	3V dc	-	-	-	-	ED	-	Through Hole	SPST	-	-30°C	-	-	Zero Cross Switching	80°C	-	-	-	37.4mm	29mm	-	-	RoHS, IEC Rated, cUL, CE	12.7mm	-	-
In Stock Celduc SO9 Series Solid State Relay, 50 A Load, DIN Rail Mount, 600 Vrms Load, 32V Control RS Stock No. 499-0496 Mfr. Part No. SO965460 Subtotal (1 unit) £41.92(exc. VAT) £41.92/unit Quantity	Celduc	50A	Solid State Relay	DIN Rail	-	600Vrms	24V ac	32V	3V	-	-	-	-	SO9	-	Screw	SPST	IP20	-40°C	16mΩ	-	Zero Cross Switching	100°C	-	-	-	29mm	58.5mm	-	-	VDE, UKCA, RoHS, EAC, cURus, CSA, CE	44.8mm	-	-
In Stock Carlo Gavazzi RA 48 Series Solid State Relay, 50 A Load, Panel Mount, 530 V ac Load, 32V Control RS Stock No. 856-8383 Mfr. Part No. RA4850-D12 Subtotal (1 unit) £54.40(exc. VAT) £54.40/unit Quantity	Carlo Gavazzi	50A	Solid State Relay	Panel	-	530V ac	42V ac	32V	3V	-	-	-	-	RA 48	-	Screw	SPST	-	-20°C	-	-	Zero Cross Switching	70°C	-	-	-	29mm	57.8mm	-	-	EAC, CE	44.5mm	-	-
In Stock RS PRO Solid State Relay, 2 A Load, PCB Mount, 24 V dc Load, 3V dc Control RS Stock No. 677-057 Subtotal (1 unit) £11.19(exc. VAT) £11.19/unit Quantity		2A	Solid State Relay	PCB	-	24V dc	0V dc	3V dc	3V dc	-	-	-	-	RS PRO	-	-	-	IP20	-30°C	-	-	-	80°C	-	-	-	5mm	28mm	-	-	cURus	18.8mm	-	-
In Stock Omron G3NA Series Solid State Relay, 10 A Load, DIN Rail Mount, 240 V ac Load RS Stock No. 794-8277 Mfr. Part No. G3NA-210B-UTU DC5-24 Subtotal (1 unit) £26.07(exc. VAT) £26.07/unit Quantity	Omron	10A	Solid State Relay	DIN Rail	-	240V ac	24V ac	-	-	-	-	-	-	G3NA	-	Screw	SP	-	-30°C	-	-	-	80°C	-	-	-	58mm	27mm	-	-	CE, CSA, UL	-	-	-
In Stock Crydom D2 Series Solid State Relay, 10 A Load, Panel Mount, 280 Vrms Load, 32V Control RS Stock No. 346-895 Mfr. Part No. D2410 Subtotal (1 unit) £46.51(exc. VAT) £46.51/unit Quantity	Crydom	10A	Solid State Relay	Panel	-	280Vrms	100V	32V	3V	-	-	-	-	D2	-	Screw	-	IP20	-40°C	-	-	Zero Cross Switching	80°C	-	-	-	23mm	58.4mm	-	-	UR, RoHS, CSA	22.6mm	-	-
In Stock Celduc SO8 Series Solid State Relay, 60 A Load, DIN Rail Mount, 510 Vrms Load, 32V Control RS Stock No. 499-0632 Mfr. Part No. SO865070 Subtotal (1 unit) £46.17(exc. VAT) £46.17/unit Quantity	Celduc	60A	Solid State Relay	DIN Rail	-	510Vrms	24V ac	32V	3.5V dc	-	-	-	-	SO8	-	Screw	SPST	IP20	-40°C	16mΩ	-	Zero Cross Switching	100°C	-	-	-	30mm	58.5mm	-	-	CE, VDE, UKCA, RoHS, EAC, cURus, CSA	44.8mm	-	-
In Stock Crydom DR67 Series Solid State Relay, 30 A Load, DIN Rail Mount, 600 V ac Load, 280V ac/dc Control RS Stock No. 227-0890 Mfr. Part No. DR6760A30P Subtotal (1 unit) £179.65(exc. VAT) £179.65/unit Quantity	Crydom	30A	Solid State Relay	DIN Rail	-	600V ac	48V ac	280V ac/dc	90V ac/dc	-	-	-	-	DR67	-	Cage Clamp	3PST	IP20	-40°C	-	-	Zero Voltage Turn-On Switching	80°C	-	-	-	91.8mm	147.8mm	-	-	IEC, EMC, cULus, CE, VDE, RoHS, GBT 26572-2011	67.5mm	-	-
In Stock i-Autoc KSI Series Solid State Relay, 10 A Load, Panel Mount, 280 V ac Load, 32V dc Control RS Stock No. 903-2961 Mfr. Part No. KSI240D10-L Subtotal (1 unit) £13.70(exc. VAT) £13.70/unit Quantity	i-Autoc	10A	Solid State Relay	Panel	-	280V ac	48V ac	32V dc	4V dc	-	-	-	-	KSI	-	Screw	-	IP20	-30°C	-	-	Zero Cross Switching	80°C	-	-	-	27mm	58.6mm	-	-	CCC, CE, RoHS	45.7mm	-	-
In Stock RS PRO Solid State Relay, 20 A Load, DIN Rail Mount, 530 Vrms Load, 32V dc Control RS Stock No. 121-3891 Subtotal (1 unit) £61.20(exc. VAT) £61.20/unit Quantity		20A	Solid State Relay	DIN Rail	-	530Vrms	48Vrms	32V dc	4V dc	-	-	-	-	-	-	Screw	SP	-	-20°C	-	-	Random Switching	60°C	-	-	-	93.2mm	22.5mm	-	-	RoHS	-	-	-
In Stock Crydom DR67 Series Solid State Relay, 25 A Load, DIN Rail Mount, 600 V ac Load, 32V Control RS Stock No. 227-0897 Mfr. Part No. DR6760D25P Subtotal (1 unit) £198.85(exc. VAT) £198.85/unit Quantity	Crydom	25A	Solid State Relay	DIN Rail	-	600V ac	48V ac	32V	4V	-	-	-	-	DR67	-	Cage Clamp	3PST	IP20	-40°C	-	-	Zero Voltage Turn-On Switching	80°C	-	-	-	91.8mm	147.8mm	-	-	CE, cULus, EMC, GBT 26572-2011, IEC, RoHS, VDE	67.5mm	-	-
In Stock Panasonic AQ-A Series Solid State Relay, 15 A Load, Chassis Mount, 250 Vrms Load, 32V Control RS Stock No. 247-4153 Mfr. Part No. AQA211VL Subtotal (1 unit) £16.23(exc. VAT) £16.23/unit Quantity	Panasonic	15A	Solid State Relay	Chassis	-	250Vrms	75Vrms	32V	4V	-	-	-	-	AQ-A	-	Screw	SPST	-	-20°C	-	-	-	80°C	-	-	-	25.5mm	58mm	-	-	RoHS	40mm	-	-
In Stock i-Autoc KSI Series Solid State Relay, 25 A Load, Panel Mount, 280 V ac Load, 32V dc Control RS Stock No. 903-2964 Mfr. Part No. KSI240D25-L Subtotal (1 unit) £17.12(exc. VAT) £17.12/unit Quantity	i-Autoc	25A	Solid State Relay	Panel	-	280V ac	48V ac	32V dc	4V dc	-	-	-	-	KSI	-	Screw	-	IP20	-30°C	-	-	Zero Cross Switching	80°C	-	-	-	26.5mm	58.6mm	-	-	CCC, CE, RoHS	45.7mm	-	-
In Stock Crydom 1 Series Solid State Relay, 125 A Load, Panel Mount, 280 Vrms Load, 32V Control RS Stock No. 358-2959 Mfr. Part No. D24125PG Subtotal (1 unit) £99.68(exc. VAT) £99.68/unit Quantity	Crydom	125A	Solid State Relay	Panel	-	280Vrms	24V ac	32V	3V dc	-	-	-	-	1	-	Screw	-	IP20	-40°C	-	-	Zero Cross Switching	80°C	-	-	-	22.9mm	58.4mm	-	-	UR, RoHS, CSA	22.6mm	-	-
In Stock Carlo Gavazzi RF1 Series Solid State Relay, 25 A Load, Chassis Mount, 280 V ac Load, 18V Control RS Stock No. 188-5264 Mfr. Part No. RF1A23M25 Subtotal (1 unit) £33.78(exc. VAT) £33.78/unit Quantity	Carlo Gavazzi	25A	Solid State Relay	Chassis	-	280V ac	24V ac	18V	9V	-	-	-	-	RF1	-	Screw	-	-	-30°C	-	-	Zero Cross Switching	80°C	-	-	-	35.6mm	21.1mm	-	-	CSA, VDE, CE	-	-	-

Solid State Relays

Where are solid state relays used?

What are the advantages of an SSR?

4147 Products showing for Solid State Relays

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