SIRIUS 3RF2 Solid-State Relays & Contactors

Siemens SIRIUS 3RF2 Solid-State Relays (SSRs) are suitable for surface mounting on existing cooling surfaces. 3RF2 SSRs, which do not include a heat sink, provide quick and easy mounting with two screws. The capacity reaches up to 88A on resistive loads, depending on the heat sink. The SSRs come in single-phase relays with a width of 22.5mm or 45mm or a three-phase relay with a width of 45mm. Siemens SIRIUS 3RF2 Solid-State Contactors feature an integrated heat sink and are available in a single-phase version with currents up to 70A or a three-phase version with currents up to 50A.

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Siemens Contactors - Solid State SS CONTACTOR,50A,600V,4-30VDC,SCREW ZP
Datasheet
4Expected 10/6/2026
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,20A,230V,24VDC-C,SCREW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,20A,460V,24VDC-C,SCREW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,20A,460V,110-230VAC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SEMICONDUCTOR RELAY 3RF2
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs 45MM,SSR,20A,48-600V,ZRO SCRW 4-30VDC CO
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,30A,230V,24VDC COIL,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs 230/460V,45MM SS RELAY,30 A,SCREW,24VDC
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,30A,600V,24VDC COIL,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,30A,230V,110-230VAC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,30A,460V,110-230VAC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,30A,600V,110-230VAC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,30A,230V,4-30VDC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SEMICONDUCTOR RELAY 3RF2
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,50A,230V,24VDC COIL,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SSR,45MM,50A,460V,24VDC,SCW, TC FOIL
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,50A,230V,110-230VAC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,50A,460V,110-230VAC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,50A,600V,110-230VAC,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,50A,460V,4-30VDC,SCW
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs 45MM,SSR,50A,48-600V,ZRO SCRW 4-30VDC
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs 24-230V,45MM RELAY,50 A,SCRW/SPRNG,24VDC
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,70A,230V,24VDC COIL,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,70A,460V,24VDC COIL,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Siemens Solid State Relays - SSRs SS RELAY,45MM,70A,600V,24VDC COIL,SCW ZP
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1