product brand nameSIRIUS
product designationtiming relay
design of the productMultifunctional
product type designation3RP20
General technical data
product feature protective coating on printed-circuit boardNo
relay outputYes
semi-conductor outputNo
product extension required remote controlNo
product extension optional remote controlNo
power loss [W] maximum2 W
insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value300 V
test voltage for isolation test2 kV
degree of pollution3
surge voltage resistance rated value4 000 V
shock resistance according to IEC 60068-2-2711 g / 15 ms
vibration resistance according to IEC 60068-2-610 ... 55 Hz / 0.35 mm
mechanical service life (operating cycles) typical10 000 000
electrical endurance (operating cycles) at AC-15 at 230 V typical100 000
adjustable time0.05 s ... 100 h
relative setting accuracy relating to full-scale value5 %; +/-
thermal current5 A
ON period/maximum minimum35 ms
recovery time150 ms
reference code according to IEC 81346-2K
relative repeat accuracy1 %; +/-
influence of the surrounding temperature±5 %
power supply influence±1 %
Substance Prohibitance (day/month/year)05/01/2012
SVHC substance nameLead CAS-No. 7439-92-1 Lead 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 Weight0.104 kg
Control circuit/ Control
type of voltage of the control supply voltageAC/DC
at 50 Hz rated value24 V
at 60 Hz rated value24 V
at 50 Hz rated value24 V
at 60 Hz rated value24 V
at 50 Hz200 ... 240 V
at 60 Hz200 ... 240 V
control supply voltage frequency 150 ... 60 Hz
control supply voltage at DC rated value24 V
control supply voltage 1 at DC rated value24 V
initial value0.7
full-scale value1.1
initial value0.85
full-scale value1.1
initial value0.85
full-scale value1.1
Switching Function
ON-delayYes
ON-delay/instantaneous contactNo
passing make contactYes
passing make contact/instantaneous contactNo
OFF delayNo
flashing symmetrically with interval start/instantaneousNo
flashing symmetrically with interval startYes
flashing symmetrically with pulse start/instantaneousNo
flashing symmetrically with pulse startNo
flashing asymmetrically with interval startNo
flashing asymmetrically with pulse startNo
star-delta circuit with delay timeNo
star-delta circuitNo
additive ON-delayYes
passing break contactYes
passing break contact/instantaneousNo
OFF delayYes
OFF delay/instantaneousNo
pulse delayedNo
pulse delayed/instantaneousNo
pulse-shapingYes
pulse-shaping/instantaneousNo
additive ON-delay/instantaneousNo
ON-delay/OFF-delay/instantaneousNo
passing make contactNo
passing make contact/instantaneous contactNo
retrotriggerable with deactivated control signal/instantaneous contactNo
retrotriggerable with switched-on control signalNo
retrotriggerable with switched-on control signal/instantaneous contactNo
retriggerable with deactivated control signalNo
design of the control terminal non-floatingYes
Short-circuit protection
design of the fuse link for short-circuit protection of the auxiliary switch requiredfuse gL/gG: 4 A
Auxiliary circuit
material of switching contactsAgSnO2
delayed switching0
instantaneous contact0
delayed switching0
instantaneous contact0
delayed switching1
instantaneous contact0
at 24 V3 A
at 250 V3 A
at 24 V1 A
at 125 V0.2 A
at 250 V0.1 A
operating frequency with 3RT2 contactor maximum5 000 1/h
contact reliability of auxiliary contactsone incorrect switching operation of 100 million switching operations (17 V, 5 mA)
contact rating of auxiliary contacts according to ULR300 / B300
Inputs/ Outputs
non-volatileNo
Electromagnetic compatibility
EMC emitted interference according to IEC 61812-1EN 61000-6-4(3)
EMC immunity according to IEC 61812-1EN 61000-6-2
due to burst according to IEC 61000-4-42 kV network connection / 1 kV control connection
due to conductor-earth surge according to IEC 61000-4-52 kV
due to conductor-conductor surge according to IEC 61000-4-51 kV
field-based interference according to IEC 61000-4-310 V/m
electrostatic discharge according to IEC 61000-4-24 kV contact discharge / 8 kV air discharge
Safety related data
category according to EN 954-1none
Electrical Safety
protection class IP on the front according to IEC 60529IP20
touch protection on the front according to IEC 60529finger-safe, for vertical contact from the front
type of insulationBasic insulation
Connections/ Terminals
product component removable terminal for auxiliary and control circuitNo
for auxiliary and control circuitspring-loaded terminals
solid2x (0,25 ... 2,5 mm²)
finely stranded with core end processing2 x (0.25 ... 1.5 mm²)
finely stranded without core end processing2x (0.25 ... 2.5 mm²)
for AWG cables solid2x (24 ... 14)
for AWG cables stranded2x (24 ... 14)
solid0.3 ... 2.5 mm²
finely stranded with core end processing0.3 ... 1.5 mm²
finely stranded without core end processing2.5 mm²
solid24 ... 14
stranded24 ... 14
Installation/ mounting/ dimensions
mounting positionany
fastening methodscrew and snap-on mounting onto 35 mm DIN rail
height57 mm
width45 mm
depth73 mm
— forwards0 mm
— backwards0 mm
— upwards0 mm
— downwards0 mm
— at the side0 mm
— forwards0 mm
— backwards0 mm
— upwards0 mm
— at the side0 mm
— downwards0 mm
— forwards0 mm
— backwards0 mm
— upwards0 mm
— downwards0 mm
— at the side0 mm
Ambient conditions
installation altitude at height above sea level maximum2 000 m
during operation-25 ... +60 °C
during storage-40 ... +85 °C
during transport-40 ... +85 °C
relative humidity during operation10 ... 95 %