SIRIUS 3RF4 Solid-State Switching Devices

Siemens SIRIUS 3RF4 Solid-State Switching Devices provide wear-free and noiseless switching of motors. The series is designed for frequently switching on/off AC drives up to 7.5kW and for reversing up to 3.0kW. These Siemens solid-state switching devices are fully insulated and can be mounted directly onto motor starter protectors, overload relays, and SIRIUS current monitoring relays. 3RF4 three-phase solid-state contactors are equipped with a two-phase control suitable for typical motor circuits without a connection to the neutral conductor. Siemens SIRIUS 3RF4 switching devices with a width of 45mm cover motors up to 2.2kW, and those with a width of 90mm cover motors up to 3kW.

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Qty. RoHS ECAD Model Mounting Style
Load Current Rating
Load Voltage Rating
Control Voltage Range
Minimum Operating Temperature
Maximum Operating Temperature
Length
Width
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Series
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
5In Stock
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,30A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
3In Stock
Min.: 1
Mult.: 1

Chassis Mount 30 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 89.5 mm 128 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
3In Stock
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 45 mm 117 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
2In Stock
1Expected 10/23/2026
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 74.5 mm 119.5 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,40A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
1In Stock
2Expected 10/26/2026
Min.: 1
Mult.: 1

Chassis Mount 40 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 119.5 mm 130 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,50A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
2In Stock
Min.: 1
Mult.: 1

Chassis Mount 50 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 119.5 mm 130 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,50A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
2In Stock
1Expected 10/23/2026
Min.: 1
Mult.: 1

Chassis Mount 50 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 119.5 mm 130 mm 150 mm 3RF4
Siemens Contactors - Solid State SOLID-STATE CONTACTOR 3-PHASE 3RF2
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 90 VAC to 125 VAC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,4-30VDC,ZP,SCREW
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,230VAC,ZP,SCREW
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 230 VAC to 480 VAC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SOLID-STATE CONTACTOR 3-PHASE 3RF2
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 90 VAC to 125 VAC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,230VAC,ZP,SCREW
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 180 VAC to 230 VAC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,4-30VDC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 4 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,230VAC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 180 VAC to 230 VAC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,4-30VDC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 3 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SS CONT,10A,48-600V,3P,230VAC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 10.5 A 48 VAC to 600 VAC 180 VAC to 230 VAC - 25 C + 60 C 45 mm 96.5 mm 95 mm 3RF4
Siemens Contactors - Solid State SOLID-STATE CONTACTOR 3-PHASE 3RF2
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 90 VAC to 125 VAC - 25 C + 60 C 45 mm 117 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,230VAC,ZP,SCREW
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 180 VAC to 230 VAC - 25 C + 60 C 45 mm 117 mm 100 mm 3RF4
Siemens Contactors - Solid State SOLID-STATE CONTACTOR 3-PHASE 3RF2
Datasheet
Non-Stocked Lead-Time 3 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 90 VAC to 125 VAC - 25 C + 60 C 74.5 mm 119.5 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,230VAC,ZP,SCREW
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 180 VAC to 230 VAC - 25 C + 60 C 74.5 mm 119.5 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,4-30VDC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 45 mm 117 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,230VAC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 180 VAC to 230 VAC - 25 C + 60 C 45 mm 117 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,4-30VDC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 4 VDC to 30 VDC - 25 C + 60 C 74.5 mm 119.5 mm 100 mm 3RF4
Siemens Contactors - Solid State SS CONT,20A,48-600V,3P,230VAC,ZP,SPRING
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 22 A 48 VAC to 600 VAC 180 VAC to 230 VAC - 25 C + 60 C 74.5 mm 119.5 mm 100 mm 3RF4
Siemens Contactors - Solid State SOLID-STATE CONTACTOR 3-PHASE 3RF2
Datasheet
Non-Stocked Lead-Time 2 Weeks
Min.: 1
Mult.: 1

Chassis Mount 30 A 48 VAC to 600 VAC 90 VAC to 125 VAC - 25 C + 60 C 74.5 mm 119.5 mm 100 mm 3RF4