3RT2045-1AP00
CONTACTOR,AC3:37KW,1NO+1NC,230VAC 50HZ

From SIEMENS

power contactor, AC-3 80 A, 37 kW / 400 V 1 NO + 1 NC, 230 V AC/50 Hz 3-pole, 3 NO, Size S3 screw terminal
Product brand nameSIRIUS
Product designationPower contactor
Product type designation3RT2
General technical data
Size of contactorS3
Product extension
function module for communicationNo
Auxiliary switchYes
Surge voltage resistance
of main circuit rated value8 kV
of auxiliary circuit rated value6 kV
maximum permissible voltage for safe isolation
between coil and main contacts acc. to EN 60947-1690 V
Protection class IP
on the frontIP20
of the terminalIP00
Shock resistance at rectangular impulse
at AC6.7 g / 5 ms, 4.0 g / 10 ms
Shock resistance with sine pulse
at AC10.6 g / 5 ms, 6.3 g / 10 ms
Mechanical service life (switching cycles)
of contactor typical10 000 000
of the contactor with added electronics-compatible auxiliary switch block typical5 000 000
of the contactor with added auxiliary switch block typical10 000 000
Reference code acc. to DIN 40719 extended according to IEC 204-2 acc. to IEC 750K
Reference code acc. to DIN EN 81346-2Q
Ambient conditions
Installation altitude at height above sea level
maximum2 000 m
Main circuit
Number of poles for main current circuit3
Number of NO contacts for main contacts3
Operating voltage
at AC-3 rated value maximum1 000 V
Operating current
at AC-1 at 400 V
— at ambient temperature 40 °C rated value125 A
at AC-1
— up to 690 V at ambient temperature 40 °C rated value125 A
— up to 690 V at ambient temperature 60 °C rated value105 A
— up to 1000 V at ambient temperature 40 °C rated value60 A
— up to 1000 V at ambient temperature 60 °C rated value50 A
at AC-2 at 400 V rated value80 A
at AC-3
— at 400 V rated value80 A
— at 500 V rated value80 A
— at 690 V rated value58 A
at AC-4 at 400 V rated value66 A
at AC-5a up to 690 V rated value110 A
at AC-5b up to 400 V rated value80 A
at AC-6a
— up to 230 V at current peak n=20 rated value80 A
— up to 400 V at current peak n=20 rated value80 A
— up to 500 V at current peak n=20 rated value80 A
— up to 690 V at current peak n=20 rated value58 A
at AC-6a
— up to 230 V at current peak n=30 rated value54 A
— up to 400 V at current peak n=30 rated value54 A
— up to 500 V at current peak n=30 rated value54 A
— up to 690 V at current peak n=30 rated value54 A
Connectable conductor cross-section in main circuit at AC-1
at 60 °C minimum permissible35 mm²
at 40 °C minimum permissible50 mm²
Operating current for approx. 200000 operating cycles at AC-4
at 400 V rated value34 A
at 690 V rated value24 A
Operating current
at 1 current path at DC-1
— at 24 V rated value100 A
— at 110 V rated value9 A
— at 220 V rated value2 A
— at 440 V rated value0.6 A
— at 600 V rated value0.4 A
with 2 current paths in series at DC-1
— at 24 V rated value100 A
— at 110 V rated value100 A
— at 220 V rated value10 A
— at 440 V rated value1.8 A
— at 600 V rated value1 A
with 3 current paths in series at DC-1
— at 24 V rated value100 A
— at 110 V rated value100 A
— at 220 V rated value80 A
— at 440 V rated value4.5 A
— at 600 V rated value2.6 A
Operating current
at 1 current path at DC-3 at DC-5
— at 24 V rated value40 A
— at 110 V rated value2.5 A
— at 220 V rated value1 A
— at 440 V rated value0.15 A
— at 600 V rated value0.06 A
with 2 current paths in series at DC-3 at DC-5
— at 24 V rated value100 A
— at 110 V rated value100 A
— at 220 V rated value7 A
— at 440 V rated value0.42 A
— at 600 V rated value0.16 A
with 3 current paths in series at DC-3 at DC-5
— at 24 V rated value100 A
— at 110 V rated value100 A
— at 220 V rated value35 A
— at 440 V rated value0.8 A
— at 600 V rated value0.35 A
Operating power
at AC-1
— at 230 V rated value47 kW
— at 230 V at 60 °C rated value40 kW
— at 400 V rated value82 kW
— at 400 V at 60 °C rated value69 kW
— at 690 V rated value142 kW
— at 690 V at 60 °C rated value119 kW
at AC-2 at 400 V rated value37 kW
at AC-3
— at 230 V rated value22 kW
— at 400 V rated value37 kW
— at 500 V rated value45 kW
— at 690 V rated value55 kW
Operating power for approx. 200000 operating cycles at AC-4
at 400 V rated value17.9 kW
at 690 V rated value21.8 kW
Thermal short-time current limited to 10 s760 A
Power loss [W] at AC-3 at 400 V for rated value of the operating current per conductor5.3 W
No-load switching frequency
at AC5 000 1/h
Operating frequency
at AC-1 maximum900 1/h
at AC-2 maximum400 1/h
at AC-3 maximum1 000 1/h
at AC-4 maximum300 1/h
Control circuit/ Control
Type of voltage of the control supply voltageAC
Control supply voltage at AC
at 50 Hz rated value230 V
Operating range factor control supply voltage rated value of magnet coil at AC
at 50 Hz0.8 ... 1.1
Apparent pick-up power of magnet coil at AC
at 50 Hz296 V·A
Inductive power factor with closing power of the coil
at 50 Hz0.61
Apparent holding power of magnet coil at AC
at 50 Hz19 V·A
Inductive power factor with the holding power of the coil
at 50 Hz0.38
Closing delay
at AC13 ... 50 ms
Opening delay
at AC10 ... 21 ms
Arcing time10 ... 20 ms
Auxiliary circuit
Number of NC contacts for auxiliary contacts
instantaneous contact1
Number of NO contacts for auxiliary contacts
instantaneous contact1
Operating current at AC-12 maximum10 A
Operating current at AC-15
at 230 V rated value6 A
at 400 V rated value3 A
at 500 V rated value2 A
at 690 V rated value1 A
Operating current at DC-12
at 24 V rated value10 A
at 48 V rated value6 A
at 60 V rated value6 A
at 110 V rated value3 A
at 125 V rated value2 A
at 220 V rated value1 A
at 600 V rated value0.15 A
Operating current at DC-13
at 24 V rated value10 A
at 48 V rated value2 A
at 60 V rated value2 A
at 110 V rated value1 A
at 125 V rated value0.9 A
at 220 V rated value0.3 A
at 600 V rated value0.1 A
Contact reliability of auxiliary contacts1 faulty switching per 100 million (17 V, 1 mA)
UL/CSA ratings
Full-load current (FLA) for three-phase AC motor
at 480 V rated value77 A
at 600 V rated value62 A
Yielded mechanical performance [hp]
for single-phase AC motor
— at 110/120 V rated value7.5 hp
— at 230 V rated value15 hp
for three-phase AC motor
— at 200/208 V rated value25 hp
— at 220/230 V rated value30 hp
— at 460/480 V rated value60 hp
— at 575/600 V rated value60 hp
Contact rating of auxiliary contacts according to ULA600 / P600
Short-circuit protection
Design of the fuse link
for short-circuit protection of the main circuit
— with type of coordination 1 requiredgG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)
— with type of assignment 2 requiredgG: 160A (690V,100kA), aM: 80A (690V,100kA), BS88: 125A (415V,80kA)
for short-circuit protection of the auxiliary switch requiredgG: 10 A (500 V, 1 kA)
Installation/ mounting/ dimensions
Mounting position+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
(mounting type)screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Mounting type Side-by-side mountingYes
Height140 mm
Width70 mm
Depth152 mm
Required spacing
with side-by-side mounting
— forwards20 mm
— upwards10 mm
— downwards10 mm
— at the side0 mm
for grounded parts
— forwards20 mm
— upwards10 mm
— at the side10 mm
— downwards10 mm
for live parts
— forwards20 mm
— upwards10 mm
— downwards10 mm
— at the side10 mm
Connections/Terminals
Type of electrical connection
for main current circuitscrew-type terminals
for auxiliary and control current circuitscrew-type terminals
Type of connectable conductor cross-sections
for main contacts
— finely stranded with core end processing2x (2.5 ... 35 mm²), 1x (2.5 ... 50 mm²)
at AWG conductors for main contacts2x (10 ... 1/0), 1x (10 ... 2)
Connectable conductor cross-section for main contacts
solid2.5 ... 16 mm²
stranded6 ... 70 mm²
finely stranded with core end processing2.5 ... 50 mm²
Connectable conductor cross-section for auxiliary contacts
single or multi-stranded0.5 ... 2.5 mm²
finely stranded with core end processing0.5 ... 2.5 mm²
Type of connectable conductor cross-sections
for auxiliary contacts
— single or multi-stranded2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²)
— finely stranded with core end processing2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
at AWG conductors for auxiliary contacts2x (20 ... 16), 2x (18 ... 14)
AWG number as coded connectable conductor cross section
for main contacts10 ... 2
for auxiliary contacts20 ... 14
Safety related data
B10 value
with high demand rate acc. to SN 319201 000 000
Proportion of dangerous failures
with low demand rate acc. to SN 3192040 %
with high demand rate acc. to SN 3192073 %
Failure rate [FIT]
with low demand rate acc. to SN 31920100 FIT
Product function
Mirror contact acc. to IEC 60947-4-1Yes
positively driven operation acc. to IEC 60947-5-1No
T1 value for proof test interval or service life acc. to IEC 6150820 y
Protection against electrical shockfinger-safe when touched vertically from front acc. to IEC 60529

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