3RP2576-1NM20
T-REL. Y-D 2 NO CONTACTS 3...60S

From SIEMENS

Timing relay, electronic with star-delta (wye-delta) function 1 NO delayed 1 NO instantaneous 1 time range, 3...60 s 200-240 V AC and 380-440 V AC with LED, Screw terminal
Product brand nameSIRIUS
Product designationtiming relay
Design of the productStar-delta (wye-delta) function
Product type designation3RP25
General technical data
Product component
Relay outputYes
semi-conductor outputNo
Product extension required remote controlNo
Product extension optional remote controlNo
Power loss [W] total typical2 W
Insulation voltage
for overvoltage category III according to IEC 60664
— with degree of pollution 3 rated value500 V
Test voltage for isolation test2.5 kV
Degree of pollution3
Surge voltage resistance rated value4 000 V
Protection class IPIP20
Shock resistance
acc. to IEC 60068-2-2711g / 15 ms
Mechanical service life (switching cycles)
typical10 000 000
Electrical endurance (switching cycles)
at AC-15 at 230 V typical100 000
Adjustable time3 ... 60 s
Relative setting accuracy relating to full-scale value5 %
Thermal current5 A
Recovery time150 ms
Reference code acc. to DIN 40719 extended according to IEC 204-2 acc. to IEC 750K
Reference code acc. to DIN EN 81346-2K
Reference code acc. to DIN EN 61346-2K
Relative repeat accuracy1 %
Control circuit/ Control
Type of voltage of the control supply voltageAC
Control supply voltage 1 at AC
at 50 Hz200 ... 240 V
at 60 Hz200 ... 240 V
Control supply voltage 2 at AC
at 50 Hz380 ... 440 V
at 60 Hz380 ... 440 V
Control supply voltage frequency 150 ... 60 Hz
Operating range factor control supply voltage rated value at AC at 50 Hz
initial value0.85
Full-scale value1.1
Operating range factor control supply voltage rated value at AC at 60 Hz
initial value0.85
Full-scale value1.1
Inrush current peak
at 240 V1 A
at 440 V1.5 A
Duration of inrush current peak
at 240 V0.2 ms
at 440 V0.1 ms
Switching Function
Switching function
ON-delayNo
ON-delay/instantaneous contactNo
passing make contactNo
passing make contact/instantaneous contactNo
OFF delayNo
Switching function
flashing symmetrically starting with interval/instantaneousNo
flashing symmetrically starting with intervalNo
flashing symmetrically starting with pulse/instantaneousNo
flashing symmetrically starting with pulseNo
flashing asymmetrically starting with intervalNo
flashing asymmetrically starting with pulseNo
Switching function
star-delta circuit with delay timeNo
star-delta circuitYes
Switching function with control signal
additive ON delayNo
passing break contactNo
passing break contact/instantaneousNo
OFF delayNo
OFF delay/instantaneousNo
pulse delayedNo
pulse delayed/instantaneousNo
pulse-shapingNo
pulse-shaping/instantaneousNo
additive ON delay/instantaneousNo
ON-delay/OFF-delay/instantaneousNo
passing make contactNo
passing make contact/instantaneous contactNo
Switching function of interval relay with control signal
retrotriggerable with deactivated control signal/instantaneous contactNo
retrotriggerable with activated control signalNo
retrotriggerable with activated control signal/instantaneous contactNo
retriggerable with deactivated control signalNo
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
Number of CO contacts
delayed switching0
Operating current of auxiliary contacts at AC-15
at 24 V3 A
at 250 V3 A
at 400 V3 A
Operating current of auxiliary contacts at DC-13
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
Influence of the surrounding temperature1% in the whole temperature range to the set runtime
Power supply influence1% in the whole voltage range to the set runtime
Switching capacity current with inductive load0.01 ... 3 A
Inputs/ Outputs
Product function
at the relay outputs Switchover delayed/without delayNo
non-volatileNo
Electromagnetic compatibility
EMI immunity
acc. to IEC 61812-1EN 61000-6-2
Conducted interference
due to burst acc. to IEC 61000-4-42 kV network connection / 1 kV control connection
due to conductor-earth surge acc. to IEC 61000-4-52 kV
due to conductor-conductor surge acc. to IEC 61000-4-51 kV
Field-bound parasitic coupling acc. to IEC 61000-4-310 V/m
Electrostatic discharge acc. to IEC 61000-4-24 kV contact discharge / 8 kV air discharge
Safety related data
Protection against electrical shockfinger-safe
Type of insulationBasic insulation
Category acc. to EN 954-1none
Connections/Terminals
Product function
removable terminal for auxiliary and control circuitYes
Type of electrical connection
for auxiliary and control current circuitscrew-type terminals
Type of connectable conductor cross-sections
solid1x (0.5 ... 4.0 mm²), 2x (0.5 ... 2.5 mm²)
finely stranded with core end processing1x (0.5 ... 4 mm²), 2x (0.5 ... 1.5 mm²)
at AWG conductors solid1x (20 ... 12), 2x (20 ... 14)
at AWG conductors stranded1x (20 ... 12), 2x (20 ... 14)
Connectable conductor cross-section
solid0.5 ... 4 mm²
finely stranded with core end processing0.5 ... 4 mm²
AWG number as coded connectable conductor cross section
solid20 ... 12
stranded20 ... 14
Tightening torque0.6 ... 0.8 N·m
Design of the thread of the connection screwM3
Installation/ mounting/ dimensions
Mounting positionany
Mounting typescrew and snap-on mounting onto 35 mm standard mounting rail
Height100 mm
Width22.5 mm
Depth90 mm
Required spacing
with side-by-side mounting
— forwards0 mm
— Backwards0 mm
— upwards0 mm
— downwards0 mm
— at the side0 mm
for grounded parts
— forwards0 mm
— Backwards0 mm
— upwards0 mm
— at the side0 mm
— downwards0 mm
for live parts
— forwards0 mm
— Backwards0 mm
— upwards0 mm
— downwards0 mm
— at the side0 mm
Ambient conditions
Installation altitude at height above sea level
maximum2 000 m
Ambient temperature
during operation-25 ... +60 °C
during storage-40 ... +85 °C
during transport-40 ... +85 °C
Relative humidity
during operation10 ... 95 %

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