Data sheet
3RA2831-1DH10
Electronic timing relay ON delay With semiconductor output 90-240 V
AC/DC Time range 0.05...100 s Can be snapped on at the front For
contactors 3RT2, S2, S3 and 3RH2 S00 contactor relays Screw
terminal
Product brand name
Product designation
Product type designation
SIRIUS
function module
3RA28
General technical data
Product component
● semi-conductor output
Product extension required remote control
Product extension optional remote control
Insulation voltage
● for overvoltage category III according to IEC
60664
— with degree of pollution 3 rated value
Test voltage for isolation test
Degree of pollution
Surge voltage resistance rated value
Test voltage for surge voltage test
Protection class IP
● of the terminal
Shock resistance
IP20
300 V
1.5 kV
3
4 kV
4 800 V
Yes
No
No
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● acc. to IEC 60068-2-27
Vibration resistance
● acc. to IEC 60068-2-6
Mechanical service life (switching cycles)
● typical
Mechanical service life (switching cycles)
● with contactor 3R.2 of frame size S2
● with contactor 3R.2 of frame size S3
Electrical endurance (switching cycles)
● at AC-15 at 230 V typical
Electrical endurance (switching cycles)
● with contactor 3R.2 of frame size S2
● with contactor 3R.2 of frame size S3
Adjustable time
Relative setting accuracy relating to full-scale value
Recovery time
Reference code acc. to DIN 40719 extended
according to IEC 204-2 acc. to IEC 750
Reference code acc. to DIN EN 81346-2
Reference code acc. to DIN EN 61346-2
Relative repeat accuracy
15g / 11 ms
10 ... 59 Hz: 0.35 mm, 60 ... 150 Hz: 2g
100 000 000
5 000 000
3 000 000
10 000 000
5 000 000
3 000 000
0.05 ... 100 s
15 %
50 ms
K
K
K
1 %
Product Function
Product function star-delta circuit
No
Control circuit/ Control
Type of voltage of the control supply voltage
Control supply voltage 1 at AC
● at 50 Hz
● at 60 Hz
Control supply voltage frequency 1
Control supply voltage 1
● at DC
Operating range factor control supply voltage rated
value at DC
● initial value
● Full-scale value
Operating range factor control supply voltage rated
value at AC at 50 Hz
● initial value
● Full-scale value
Operating range factor control supply voltage rated
value at AC at 60 Hz
● initial value
0.85
0.85
1.1
0.85
1.1
90 ... 240 V
90 ... 240 V
90 ... 240 V
50 ... 60 Hz
AC/DC
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● Full-scale value
Design of the surge suppressor
1.1
with varistor
Switching Function
Switching function
● ON-delay
● ON-delay/instantaneous contact
● passing make contact
● passing make contact/instantaneous contact
● OFF delay
Switching function
● flashing symmetrically starting with
interval/instantaneous
● flashing symmetrically starting with interval
● flashing symmetrically starting with
pulse/instantaneous
● flashing symmetrically starting with pulse
● flashing asymmetrically starting with interval
● flashing asymmetrically starting with pulse
Switching function
● fixed clock cycle beginning with pulse
● fixed clock cycle beginning with interval
Switching function
● variably clocked start with impulse
● variably clocked start with interval
Switching function
● star-delta circuit with delay time
● star-delta circuit
Switching function with control signal
● additive ON delay
● passing break contact
● passing break contact/instantaneous
● OFF delay
● OFF delay/instantaneous
● pulse delayed
● pulse delayed/instantaneous
● pulse-shaping
● pulse-shaping/instantaneous
● additive ON delay/instantaneous
● ON-delay/OFF-delay
● ON-delay/OFF-delay/instantaneous
● passing make contact
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
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● passing make contact/instantaneous contact
Switching function of interval relay with control signal
● retrotriggerable with deactivated control
signal/instantaneous contact
● retrotriggerable with activated control signal
● retrotriggerable with activated control
signal/instantaneous contact
● retriggerable with deactivated control signal
Design of the control terminal non-floating
No
No
No
No
No
Yes
Auxiliary circuit
Number of NO contacts
● delayed switching
Operating frequency with 3RT2 contactor maximum
Influence of the surrounding temperature
Power supply influence
1
2 500 1/h
±1 %
±1 %
Main circuit
Type of voltage
AC/DC
Inputs/ Outputs
Product function
● non-volatile
No
Electromagnetic compatibility
EMI immunity
● acc. to IEC 61812-1
Conducted interference
● due to burst acc. to IEC 61000-4-4
● due to conductor-earth surge acc. to IEC
61000-4-5
● due to conductor-conductor surge acc. to IEC
61000-4-5
Field-bound parasitic coupling acc. to IEC 61000-4-3
Electrostatic discharge acc. to IEC 61000-4-2
2 kV network connection / 1 kV control connection
2 kV
1 kV
10 V/m
8 kV
Environment A (industrial area)
Safety related data
Protection against electrical shock
Type of insulation
Category acc. to EN 954-1
finger-safe
Basic insulation
none
Connections/ Terminals
Product function
● removable terminal for auxiliary and control
circuit
Type of electrical connection
● for auxiliary and control current circuit
screw-type terminals
Yes
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Type of connectable conductor cross-sections
● solid
● finely stranded with core end processing
● finely stranded without core end processing
● at AWG conductors solid
● at AWG conductors stranded
Connectable conductor cross-section
● solid
● finely stranded with core end processing
● finely stranded without core end processing
AWG number as coded connectable conductor cross
section
● solid
● stranded
20 ... 14
20 ... 14
0.5 ... 4 mm²
0.5 ... 2.5 mm²
0.25 ... 1.5 mm²
0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)
1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)
2x (0.5 ... 1.5 mm²)
2x (20 ... 14)
2x (20 ... 14)
Installation/ mounting/ dimensions
Mounting position
Mounting type
Height
Width
Depth
Required spacing
● with side-by-side mounting
— forwards
— Backwards
— upwards
— downwards
— at the side
● for grounded parts
— forwards
— Backwards
— upwards
— at the side
— downwards
● for live parts
— forwards
— Backwards
— upwards
— downwards
— at the side
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
any (like contactor)
clip-on
38 mm
45 mm
74 mm
Ambient conditions
Installation altitude at height above sea level
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