Solid State Relays (SSR)

Use the filters and product table below to compare Solid State Relays (SSR) components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Packaging	Product Status	Mounting Type	Circuit	Output Type	Voltage - Input	Voltage - Load	Load Current	On-State Resistance (Max)	Termination Style	Operating Temperature	Supplier Device Package	Approval Agency	Grade	Qualification
3RF21901AA04 SS RELAY,22.5MM,90A,460V,24VDC-C Siemens	2,578	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	24VDC	48 V ~ 460 V	90 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR, VDE	-	-
3RF21903AA04 SS RELAY,22.5MM,90A,460V,24VDC-C Siemens	3,963	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	24VDC	48 V ~ 460 V	90 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR, VDE	-	-
3RF21903AA44 SOLID-STATE RELAY,3RF2,90A,48-46 Siemens	3,083	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	4 ~ 30VDC	48 V ~ 460 V	90 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR, VDE	-	-
3RF21901BA04 SS RELAY,22.5MM,90A,460V,24VDC-C Siemens	2,526	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC	24VDC	48 V ~ 460 V	90 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR, VDE	-	-
3RF21902AA02 SS RELAY,22.5MM,90A,230V,24VDC,S Siemens	2,427	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	24VDC	24 V ~ 230 V	90 A	-	Spring Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR, VDE	-	-
3RF20501AA26 SS RELAY,45MM,50A,600V,110-230VA Siemens	3,055	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	110 ~ 230VAC	48 V ~ 600 V	50 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR	-	-
3RF20901AA06 SS RELAY,45MM,90A,600V,24VDC COI Siemens	2,943	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	24VDC	48 V ~ 600 V	90 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR	-	-
3RF21301AA06 SS RELAY,22.5MM,30A,600V,24VDC-C Siemens	4,931	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	24VDC	48 V ~ 600 V	30 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR, VDE	-	-
3RF21902AA04 SS RELAY,22.5MM,90A,460V,24VDC,S Siemens	3,329	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	24VDC	48 V ~ 460 V	90 A	-	Spring Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR, VDE	-	-
3RF20701AA26 SS RELAY,45MM,70A,600V,110-230VA Siemens	3,589	-	RFQ	Datasheet	SIRIUS	Box	Active	Chassis Mount	SPST-NO (1 Form A)	AC, Zero Cross	110 ~ 230VAC	48 V ~ 600 V	70 A	-	Screw Terminal	-25°C ~ 60°C	-	CE, CSA, EAC, RCM, UKCA, UR	-	-

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FREQUENTLY ASKED QUESTIONS

Solid State Relays (SSR) FAQ

Common questions about filtering, comparing and sourcing Solid State Relays (SSR) components.

How can I narrow the Solid State Relays (SSR) selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific Solid State Relays (SSR) part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.