— upwards0 mm
— forwards0 mm
— backwards0 mm
— downwards0 mm
— at the side0 mm
recovery time150 ms
adjustable time0.05 ... 100 s
type of voltageAC/DC
active principleelectronic
fastening methodclip-on
minimum ON period35 ms
mounting positionany (like contactor)
product brand nameSIRIUS
type of insulationBasic insulation
degree of pollution3
product designationSolid-state time-delay auxiliary switch
power supply influence±1 %
product type designation3RA28
relative repeat accuracy1 %
Substance Prohibitance (Date)10/01/2009
category according to EN 954-1none
control supply voltage 1 at DC24 ... 240 V
design of the surge suppressorwith varistor
material of switching contactsAgNi
test voltage for isolation test1.5 kV
control supply voltage frequency 150 ... 60 Hz
product function star-delta circuitNo
relative humidity during operation0 ... 95 %
protection class IP of the terminalIP20
test voltage for surge voltage test4 800 V
EMC immunity according to IEC 61812-1Environment A (industrial area)
surge voltage resistance rated value4 kV
product component semi-conductor outputNo
reference code according to IEC 81346-2K
influence of the surrounding temperature±1 %
product extension optional remote controlNo
product extension required remote controlNo
design of the control terminal non-floatingYes
shock resistance according to IEC 60068-2-2715g / 11 ms
type of voltage of the control supply voltageAC/DC
vibration resistance according to IEC 60068-2-610 ... 59 Hz: 0.35 mm, 60 ... 150 Hz: 2g
operating frequency with 3RT2 contactor maximum2 500 1/h
electrostatic discharge according to IEC 61000-4-28 kV
field-based interference according to IEC 61000-4-310 V/m
mechanical service life (operating cycles) typical10 000 000
operational current of auxiliary contacts at DC-131 ... 0.1
size of contactor can be combined company-specificS00, S0, S2, S3
contact rating of auxiliary contacts according to ULB300 / R300
touch protection on the front according to IEC 60529finger-safe, for vertical contact from the front
relative setting accuracy relating to full-scale value15 %
installation altitude at height above sea level maximum2 000 m
protection class IP on the front according to IEC 60529IP20
electrical endurance (operating cycles) at AC-15 at 230 V typical100 000
type of electrical connection for auxiliary and control circuitspring-loaded terminals
product component removable terminal for auxiliary and control circuitYes
design of the fuse link for short-circuit protection of the auxiliary switch requiredfuse gL/gG: 4 A
insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value300 V
