Article number 3RT1036-1BB40 3RT2036-1KB40
Power contactor, AC-3 50 A, 22 kW / 400 V 24 V DC, 3-pole, Size S2, screw terminal ! Phased-out product! Successor is SIRIUS 3RT2 Preferred successor type is >>3RT2036-1KB40<< power contactor, AC-3e/AC-3, 51 A, 22 kW / 400 V, 3-pole, 24 V DC, 0.8-1.2* Us, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S2, suitable for PLC outputs
product brand name SIRIUS
product designation power contactor Coupling contactor
product type designation 3RT2
General technical data
size of contactor S2
product extension
● function module for communication No
● auxiliary switch Yes
power loss [W] for rated value of the current
● at AC in hot operating state 12 W
● at AC in hot operating state per pole 4 W
● without load current share typical 1 W
type of calculation of power loss depending on pole quadratic
insulation voltage
● rated value 690 V
● of main circuit with degree of pollution 3 rated value 690 V
● of auxiliary circuit with degree of pollution 3 rated value 690 V
degree of pollution 3
surge voltage resistance rated value 6 kV
maximum permissible voltage for protective separation between coil and main contacts according to EN 60947-1 400 V
protection class IP
● on the front IP20
● of the terminal IP00
shock resistance at rectangular impulse
● at DC 10g / 5 ms, 5g / 10 ms 7.7g / 5 ms, 4.5g / 10 ms
shock resistance with sine pulse
● at DC 15g / 5 ms, 8g / 10 ms 12g / 5 ms, 7g / 10 ms
mechanical service life (operating cycles)
● of contactor typical 10 000 000
● of the contactor with added electronically optimized auxiliary switch block typical 5 000 000
● of the contactor with added auxiliary switch block typical 10 000 000
reference code according to IEC 81346-2 Q
Substance Prohibitance (Date) 05/01/2012 10/01/2014
SVHC substance name
Lead - 7439-92-1
Lead monoxide (lead oxide) - 1317-36-8
Ambient conditions
installation altitude at height above sea level maximum 2 000 m
ambient temperature
● during operation -25 ... +60 °C
● during storage -55 ... +80 °C
relative humidity minimum 10 %
relative humidity at 55 °C according to IEC 60068-2-30 maximum 95 %
Environmental footprint
Environmental Product Declaration(EPD) Yes
Global Warming Potential [CO2 eq] total 107 kg
Global Warming Potential [CO2 eq] during manufacturing 5.88 kg
Global Warming Potential [CO2 eq] during operation 102 kg
Global Warming Potential [CO2 eq] after end of life -0.988 kg
Main circuit
number of poles for main current circuit 3
number of NO contacts for main contacts 3
number of NC contacts for main contacts 0
operating voltage
● at AC-3 rated value maximum 690 V
● at AC-3e rated value maximum 690 V
operational current
● at AC-1 at 400 V at ambient temperature 40 °C rated value 60 A 70 A
● at AC-1
— up to 690 V at ambient temperature 40 °C rated value 60 A 70 A
— up to 690 V at ambient temperature 60 °C rated value 55 A 60 A
● at AC-3
— at 400 V rated value 50 A 51 A
— at 500 V rated value 51 A
— at 690 V rated value 24 A
● at AC-3e
— at 400 V rated value 51 A
— at 500 V rated value 51 A
— at 690 V rated value 24 A
● at AC-4 at 400 V rated value 41 A
connectable conductor cross-section in main circuit at AC-1
● at 60 °C minimum permissible 16 mm²
● at 40 °C minimum permissible 16 mm²
operational current for approx. 200000 operating cycles at AC-4
● at 400 V rated value 24 A
● at 690 V rated value 12.6 A 20 A
operating power
● at AC-1
— at 230 V rated value 26 kW
— at 230 V at 60 °C rated value 22 kW
— at 400 V rated value 38 kW 46 kW
— at 400 V at 60 °C rated value 39 kW
— at 690 V rated value 66 kW 79 kW
— at 690 V at 60 °C rated value 66 kW 68 kW
● at AC-2 at 400 V rated value 22 kW
● at AC-3
— at 230 V rated value 15 kW
— at 400 V rated value 22 kW
— at 500 V rated value 30 kW
— at 690 V rated value 22 kW
● at AC-3e
— at 230 V rated value 15 kW
— at 400 V rated value 22 kW
— at 690 V rated value 22 kW
operating power for approx. 200000 operating cycles at AC-4
● at 400 V rated value 12.6 kW
● at 690 V rated value 11.4 kW 18.2 kW
thermal short-time current limited to 10 s 400 A
no-load switching frequency
● at DC 1 500 1/h
operating frequency
● at AC-1 maximum 1 000 1/h
● at AC-2 maximum 400 1/h 600 1/h
● at AC-3 maximum 800 1/h
● at AC-3e maximum 800 1/h
● at AC-4 maximum 300 1/h 250 1/h
Control circuit/ Control
type of voltage of the control supply voltage DC
control supply voltage at DC rated value
●   24 V
operating range factor control supply voltage rated value of magnet coil at DC
● initial value 0.8
● full-scale value 1.1 1.2
design of the surge suppressor with varistor
closing power of magnet coil at DC 13.3 W 21.5 W
holding power of magnet coil at DC 13.3 W 1 W
closing delay
● at DC 60 ... 100 ms 35 ... 80 ms
opening delay
● at DC 20 ... 25 ms 30 ... 55 ms
arcing time 10 ... 15 ms 10 ... 20 ms
control version of the switch operating mechanism Standard A1 - A2
Auxiliary circuit
number of NC contacts for auxiliary contacts instantaneous contact 0 1
number of NO contacts for auxiliary contacts instantaneous contact 0 1
operational current at AC-12 maximum 10 A
operational current at AC-15
● at 230 V rated value 6 A 10 A
● at 400 V rated value 3 A
● at 500 V rated value 2 A
● at 690 V rated value 1 A
operational current at DC-12
● at 24 V rated value 10 A
● at 48 V rated value 6 A
● at 60 V rated value 6 A
● at 110 V rated value 3 A
● at 125 V rated value 2 A
● at 220 V rated value 1 A
● at 600 V rated value 0.15 A
operational current at DC-13
● at 24 V rated value 10 A
● at 48 V rated value 2 A
● at 60 V rated value 2 A
● at 110 V rated value 1 A
● at 125 V rated value 0.9 A
● at 220 V rated value 0.3 A
● at 600 V rated value 0.1 A
contact reliability of auxiliary contacts 1 faulty switching per 100 million (17 V, 1 mA)
UL/CSA ratings
full-load current (FLA) for 3-phase AC motor
● at 480 V rated value 52 A
● at 600 V rated value 52 A
yielded mechanical performance [hp]
● for single-phase AC motor
— at 110/120 V rated value 3 hp
— at 230 V rated value 10 hp
● for 3-phase AC motor
— at 200/208 V rated value 15 hp
— at 220/230 V rated value 15 hp
— at 460/480 V rated value 40 hp
— at 575/600 V rated value 50 hp
contact rating of auxiliary contacts according to UL A600 / Q600 A600 / P600
Short-circuit protection
design of the fuse link
● for short-circuit protection of the main circuit
— with type of coordination 1 required fuse gL/gG: 160 A gG: 160 A (690 V, 100 kA), aM: 80 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)
— with type of assignment 2 required fuse gL/gG: 80 A gG: 80A (690V,100kA), aM: 50A (690V,100kA), BS88: 63A (415V,80kA)
● for short-circuit protection of the auxiliary switch required fuse gL/gG: 10 A gG: 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
fastening method screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022 screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
height 112 mm 114 mm
width 55 mm
depth 130 mm
required spacing
● with side-by-side mounting
— forwards 10 mm
— upwards 10 mm
— downwards 10 mm
— at the side 0 mm
● for grounded parts
— forwards 10 mm
— upwards 10 mm
— at the side 6 mm
— downwards 10 mm
● for live parts
— forwards 10 mm
— upwards 10 mm
— downwards 10 mm
— at the side 6 mm
Connections/ Terminals
type of electrical connection
● for main current circuit screw-type terminals
● for auxiliary and control circuit screw-type terminals
● at contactor for auxiliary contacts Screw-type terminals
● of magnet coil Screw-type terminals
type of connectable conductor cross-sections for main contacts
● solid 2x (0.75 ... 16 mm²)
● stranded 2x (0.75 ... 25 mm²)
● solid or stranded 2x (0.75 ... 16 mm²) 2x (1 ... 35 mm²), 1x (1 ... 50 mm²)
● finely stranded with core end processing 2x (0.75 ... 16 mm²) 2x (1 ... 25 mm²), 1x (1 ... 35 mm²)
● finely stranded without core end processing 2x (0.75 ... 16 mm²)
connectable conductor cross-section for main contacts
● solid or stranded 1 ... 50 mm²
● finely stranded with core end processing 1 ... 35 mm²
connectable conductor cross-section for auxiliary contacts
● solid or stranded 0.5 ... 2.5 mm²
● finely stranded with core end processing 0.5 ... 2.5 mm²
type of connectable conductor cross-sections
● for auxiliary contacts
— solid 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
— solid or stranded 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
— finely stranded with core end processing 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
● for AWG cables for auxiliary contacts 2x (20 ... 16), 2x (18 ... 14), 1x 12 2x (20 ... 16), 2x (18 ... 14)
AWG number as coded connectable conductor cross section
● for main contacts 18 ... 1
● for auxiliary contacts 20 ... 14
Safety related data
product function
● mirror contact according to IEC 60947-4-1 Yes
● positively driven operation according to IEC 60947-5-1 No
suitability for use
● safety-related switching on No
● safety-related switching OFF Yes; applies only to contactor operating mechanism
proportion of dangerous failures
● with low demand rate according to SN 31920 40 %
● with high demand rate according to SN 31920 73 %
B10 value with high demand rate according to SN 31920 1 000 000
failure rate [FIT] with low demand rate according to SN 31920 100 FIT
IEC 61508
T1 value
● for proof test interval or service life according to IEC 61508 20 a
Electrical Safety
protection class IP on the front according to IEC 60529 IP20
touch protection on the front according to IEC 60529 finger-safe, for vertical contact from the front
Approvals Certificates
General Product Approval
CSA CSA
Yes Yes
UK Declaration of Conformity UK Declaration of Conformity
Yes Yes
EU declaration of conformity EU declaration of conformity Yes Yes
CCC CCC
Yes Yes
Confirmation Yes Yes
UL UL
Yes Yes
EAC EAC
Yes Yes
EMV
RCM RCM
Yes Yes
Test Certificates
Special Test Certificate Yes Yes
Miscellaneous Yes Yes
Type Test Certificates/Test Report Yes Yes
Miscellaneous Yes Yes
Marine / Shipping
ABS (American Bureau of Shipping) ABS (American Bureau of Shipping)
Yes Yes
RINA (Registro Italiano Navale) RINA (Registro Italiano Navale) Yes Yes
other
Miscellaneous Yes Yes
Confirmation Yes Yes
Miscellaneous Yes Yes
Railway
Special Test Certificate Yes Yes
Environment
Environmental Confirmations Yes Yes
Further information
Information on the packaging
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Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
Characteristic: Tripping characteristics, I²t, Let-through current
Further characteristics (e.g. electrical endurance, switching frequency)
3RT1036-1BB40 3RT2036-1KB40
3RT1036-1BB40 3RT2036-1KB40
3RT1036-1BB40 3RT2036-1KB40
last modified: 3/15/2024
Date
4/18/2024
Subject to change without notice
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