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Siemens 3RF3125-2AA42

semiconductor relay, 1-pole 3RF3 for use with heat sinks width 22.5 mm, 20 A 24-230 V / 4-30 V DC spring-loaded terminal

SiemensMFR # 3RF3125-2AA42SKU # YLSDUI9DODZBF5K

product brand nameSIRIUS

product designationsolid-state relay

product type designation3RF31

product functionzero-point switching

power loss [V∙A] maximum22 V·A

at AC in hot operating state22 W

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About This Product

semiconductor relay, 1-pole 3RF3 for use with heat sinks width 22.5 mm, 20 A 24-230 V / 4-30 V DC spring-loaded terminal

Siemens 3RF3125-2AA42

Genuine, certified Siemens product
Fast sourcing through a worldwide supply network
Product selection and compatibility support from our technical team
Equivalent and alternative product suggestions
Quotation and lead time tailored to your request

Specifications

product brand nameSIRIUS

product designationsolid-state relay

product type designation3RF31

_1 of the accessories that can be ordered3RF3900-0WA88

_2 of the accessories that can be ordered3RF3900-0EA18

_1 of the accessories that can be orderedheat conducting foil

_2 of the accessories that can be orderedconverter

General technical data

product functionzero-point switching

power loss [V∙A] maximum22 V·A

at AC in hot operating state22 W

at AC in hot operating state per pole22 W

without load current share typical0.5 W

type of calculation of power loss current-dependentlinear

insulation voltage rated value600 V

surge voltage resistance of main circuit rated value6 kV

protection class IPIP20

protection class IP on the front according to IEC 60529IP20

shock resistance according to IEC 60068-2-2715 g / 11 ms

vibration resistance according to IEC 60068-2-62 g

reference code according to IEC 81346-2Q

Substance Prohibitance (day/month/year)01/15/2024

SVHC substance nameLead monoxide (lead oxide) CAS-No. 1317-36-8 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1

Net Weight0.08 kg

Main circuit

number of poles for main current circuit1

number of NO contacts for main contacts1

number of NC contacts for main contacts0

type of voltage of the operating voltageAC

— at 50 Hz rated value24 ... 230 V

— at 60 Hz rated value24 ... 230 V

operating frequency rated value50 ... 60 Hz

relative symmetrical tolerance of the operating frequency10 %

at 50 Hz20 ... 253 V

at 60 Hz20 ... 253 V

operational current rated value maximum20 A

at AC-1 at 400 V rated value20 A

at AC-51 rated value20 A

at AC-51 according to IEC 60947-4-320 A

according to UL 508 rated value20 A

ampacity maximum25 A

operational current minimum100 mA

rate of voltage rise at the thyristor for main contacts maximum permissible1 000 V/µs

blocking voltage at the thyristor for main contacts maximum permissible800 V

reverse current of the thyristor10 mA

derating temperature40 °C

surge current resistance rated value260 A

I2t value maximum360 A²·s

Control circuit/ Control

type of voltage of the control supply voltageDC

control supply voltage at DC4 ... 30 V

control supply voltage 1 at DC4 ... 30 V

initial value for signal <1> detection4 V

full-scale value for signal<0> recognition1 V

initial value0.17

full-scale value1.25

at DC13 mA

control current at DC rated value15 mA

ON-delay time1 ms; additionally max. one half-wave

OFF-delay time1 ms; additionally max. one half-wave

Installation/ mounting/ dimensions

fastening method side-by-side mountingYes

fastening methodscrew fixing

design of the thread of the screw for securing the equipmentM4

tightening torque of fixing screw maximum1.5 N·m

tightening torque [lbf·in] of fixing screw maximum13 lbf·in

height85 mm

width22.5 mm

depth48 mm

Connections/ Terminals

product component removable terminal for auxiliary and control circuitYes

for main current circuitspring-loaded terminals

for auxiliary and control circuitspring-loaded terminals

— solid2x (0.5 ... 2.5 mm²)

— finely stranded with core end processing2x (0.5 ... 1.5 mm²)

— finely stranded without core end processing2x (0.5 ... 2.5 mm²)

for AWG cables for main contacts2x (18 ... 14)

solid or stranded0.5 ... 2.5 mm²

finely stranded with core end processing0.5 ... 1.5 mm²

finely stranded without core end processing0.5 ... 2.5 mm²

— solid0.5 ... 1.5 mm²

— finely stranded with core end processing0.5 ... 2.5 mm²

— finely stranded without core end processing0.5 ... 2.5 mm²

for AWG cables for auxiliary and control contacts1x (20 ... 12)

AWG number as coded connectable conductor cross section for main contacts18 ... 14

for main contacts10 mm

for auxiliary and control contacts10 mm

UL/CSA ratings

operational current according to UL 508 rated value20 A

Electrical Safety

touch protection on the front according to IEC 60529finger-safe, for vertical contact from the front

Ambient conditions

installation altitude at height above sea level maximum1 000 m

during operation-25 ... +60 °C

during storage-55 ... +80 °C

Electromagnetic compatibility

due to burst according to IEC 61000-4-42 kV / 5 kHz, behavior criterion 2

due to conductor-earth surge according to IEC 61000-4-52 kV, behavior criterion 2

due to conductor-conductor surge according to IEC 61000-4-51 kV, behavior criterion 2

due to high-frequency radiation according to IEC 61000-4-6140 dBuV in the frequency range 0.15 ... 80 MHz, behavior criterion 1

field-based interference according to IEC 61000-4-380 MHz ... 1 GHz 10 V/m, behavior criterion 1

electrostatic discharge according to IEC 61000-4-24 kV contact discharging / 8 kV air discharging, behavior criterion 2

conducted HF interference emissions according to CISPR11Class A for industrial environment

field-bound HF interference emission according to CISPR11Class B for the domestic, business and commercial environments

Short-circuit protection, design of the fuse link

of gS fuse for semiconductor protection at NH design usable3NE1815-0

of full range R fuse link for semiconductor protection at cylindrical design usable5SE1325

of back-up R fuse link for semiconductor protection at NH design usable3NE8015-1

of back-up R fuse link for semiconductor protection at cylindrical design 10 x 38 mm usable3NC1020; These fuses have a smaller rated current than the semiconductor relays

of back-up R fuse link for semiconductor protection at cylindrical design 14 x 51 mm usable3NC1430

of back-up R fuse link for semiconductor protection at cylindrical design 22 x 58 mm usable3NC2225

at NH design usable3NA6803; These fuses have a smaller rated current than the semiconductor relays

at NH design usable noteThese fuses have a smaller rated current than the semiconductor relays

at cylindrical design 10 x 38 mm usable3NW6001-1; These fuses have a smaller rated current than the semiconductor relays

at cylindrical design 10 x 38 mm usable noteThese fuses have a smaller rated current than the semiconductor relays

at cylindrical design 14 x 51 mm usable3NW6101-1; These fuses have a smaller rated current than the semiconductor relays

at cylindrical design 14 x 51 mm usable noteThese fuses have a smaller rated current than the semiconductor relays

at cylindrical design 22 x 58 mm usable3NW6208-1; These fuses have a smaller rated current than the semiconductor relays

at cylindrical design 22 x 58 mm usable noteThese fuses have a smaller rated current than the semiconductor relays

of DIAZED fuse usable5SB251; These fuses have a smaller rated current than the semiconductor relays

of DIAZED fuse usable noteThese fuses have a smaller rated current than the semiconductor relays

of NEOZED fuse usable5SE2310; These fuses have a smaller rated current than the semiconductor relays

Accessories 18

Genuine accessories that can be used with the Siemens 3RF3125-2AA42 motor and are supplied separately are listed below. Click a code to open the accessory page and see the other compatible motors.

Part no	Description	Compatible motors
3RA2908-1A	Aksesuar · Miscellaneous accessories · screwdrivers
3RF3900-1TA88	Aksesuar
3RF3900-2TB88	Aksesuar
3RT2900-1SB60	Aksesuar · Miscellaneous accessories · labeling plates
3RT2900-1SB20	Aksesuar · Miscellaneous accessories · labeling plates
3RT2900-1SB10	Aksesuar · Miscellaneous accessories · labeling plates
3RF3900-0EA18	Aksesuar
5SB251	Seçmeli zorunlu ürün
3NW6208-1	Seçmeli zorunlu ürün
3NW6101-1	Seçmeli zorunlu ürün
3NW6001-1	Seçmeli zorunlu ürün
3NE8015-1	Seçmeli zorunlu ürün
3NC2225	Seçmeli zorunlu ürün
3NE1815-0	Seçmeli zorunlu ürün
3NC1020	Seçmeli zorunlu ürün
3NA6803	Seçmeli zorunlu ürün
5SE1325	Seçmeli zorunlu ürün
5SE2310	Seçmeli zorunlu ürün