product brand nameSIRIUS
product categorySIRIUS 3RQ4 coupling relay, narrow design
product designationCoupling relay with dahili semiconductor output
design of the productinput coupling link
product type designation3RQ4
General technical data
display version LEDVar
product feature protective coating on printed-circuit boardYok
relay outputYok
semi-conductor outputVar
power loss [W] maximum1,9 W
consumed active power0,5 W
insulation voltage for overvoltage category III according to IEC 60664 with degree of pollution 3 rated value300 V
surge voltage resistance rated value4 kV
between control and auxiliary circuit300 V
between control and auxiliary circuit according to IEC 60947-1300 V
protection class IPIP20
flammability class of enclosure materialUL94 V-0
according to IEC 60068-2-27sinusoidal half-wave 15 g / 11 ms
according to IEC 60068-2-66... 150 Hz: 2 g
switching behaviormonostable
switching frequency25 Hz
thermal current5 A
short-time withstand current (Icw) limited to 10 ms8 A
reference code according to IEC 81346-2K
Substance Prohibitance (day/month/year)09/26/2024
SVHC substance nameLead CAS-Yok. 7439-92-1
Net Weight0,035 kg
Control circuit/ Control
at 50 Hz rated value110... 230 V
at 60 Hz rated value110... 230 V
1 rated value50 Hz
2 rated value60 Hz
control supply voltage at DC rated value110... 230 V
initial value0,7
full-scale value1,1
initial value0,7
full-scale value1,1
initial value0,7
full-scale value1,1
design of the surge suppressor at inputVaristor
design of the surge suppressor at outputSuppressor diode
inrush current maximum1 A
minimum switching voltage when switching on74 V
maximum switching voltage when switching off10 V
at AC maximum5 ms
at DC maximum2 ms
OFF-delay time maximum5 ms
leakage current of the electronics for control with signal <0>0,02 mA
Switching Function
design of the switching function positively drivenYok
Digital Outputs
property of the output short-circuit proofVar
Mechanical data
product component plug-in socketYok
design of the relay operating mechanismNon-polarized
Short-circuit protection
design of the fuse link for short-circuit protection of the auxiliary switch requiredfuse gG: 4 A
Auxiliary circuit
type of switching contactdouble contact
material of contact coatingother
material of switching contactsAgSnO2
material of the contact insertThermoplastic
number of NC contacts for auxiliary contacts0
number of NO contacts for auxiliary contacts1
number of CO contacts for auxiliary contacts0
Main circuit
type of voltageAC/DC
Inputs/ Outputs
switching current of semiconductor outputs6 A
type of voltage of the output voltageDC
voltage drop when switched-through maximum90 mV
switching voltage of the semiconductor output at DC10... 30 V
ampacity of the semiconductor output at DC1 mA... 6 A
Electromagnetic compatibility
electromagnetic compatibilityacc. to EN 60947-5-1
EMC emitted interference according to IEC 60947-1ambience A (industrial sector)
EMC immunity according to IEC 60947-1corresponds to degree of severity 3
due to burst according to IEC 61000-4-42 kV
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 61000-4-26 kV contact discharge / 8 kV air discharge
Display
display version as status display by LEDLED green
Connections/ Terminals
product function removable terminalYok
type of electrical connectionscrew terminal
type of connection technology3-wire technology
solid1x (0,25... 2,5 mm²)
finely stranded with core end processing1x (0,25... 2,5 mm²), 2x (0,25... 1,5 mm²)
for AWG cables solid1x (20... 14), 2x (20... 16)
solid0,25... 2,5 mm²
finely stranded with core end processing0,25... 2,5 mm²
solid20... 14
tightening torque with screw-type terminals0,5... 0,6 N·m
size of the screwdriver tip3,0 x 0,5 mm
stripped length10 mm
Installation/ mounting/ dimensions
mounting positionany
fastening methodsnap-on mounting
height93 mm
width6,2 mm
depth84,5 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 %