Buy Original Siemens 3RT2028-1AL20-8K at Discounted Price - Shipping Worldwide

Buy Original Siemens 3RT2028-1AL20-8K at Discounted Price – Shipping Worldwide

Power contactor AC-3 38 A 18.5 kW / 400 V 1 NO + 1 NC 230 V AC 50/60 Hz 3-pole Size S0 screw terminals

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Description

size of contactorS0
product extension
● function module for communicationNo
● auxiliary switchYes
power loss [W] for rated value of the current
● at AC in hot operating state9.6 W
● at AC in hot operating state per pole3.2 W
● without load current share typical10.5 W
insulation voltage
● of main circuit with degree of pollution 3 rated value690 V
● of auxiliary circuit with degree of pollution 3 rated value690 V
surge voltage resistance
● of main circuit rated value6 kV
● of auxiliary circuit rated value6 kV
maximum permissible voltage for protective separation between coil and main contacts according to EN 60947-1400 V
protection class IP
● on the frontIP20; IP20
● of the terminalIP20
shock resistance at rectangular impulse
● at AC8,3g / 5 ms, 5,3g / 10 ms
shock resistance with sine pulse
● at AC13,5g / 5 ms, 8,3g / 10 ms
mechanical service life (operating cycles)
● of contactor typical10 000 000
● of the contactor with added electronically optimized auxiliary switch block typical5 000 000
● of the contactor with added auxiliary switch block typical10 000 000
reference code according to IEC 81346-2Q
Substance Prohibitance (Date)09/01/2022
Ambient conditions
installation altitude at height above sea level maximum2 000 m
ambient temperature
● during operation-5 … +60 °C
● during storage-25 … +80 °C
relative humidity minimum10 %
relative humidity at 55 °C according to IEC 60068-2-30 maximum95 %
Main circuit
number of poles for main current circuit3
number of NO contacts for main contacts3
operating voltage
● at AC-3 rated value maximum690 V
● at AC-3e rated value maximum690 V
operational current
● at AC-1 at 400 V at ambient temperature 40 °C rated value50 A
● at AC-1 up to 690 V
— at ambient temperature 40 °C rated value50 A
— at ambient temperature 60 °C rated value42 A
● at AC-3
— at 400 V rated value38 A
— at 500 V rated value32 A
— at 690 V rated value21 A
● at AC-3e
— at 400 V rated value38 A
— at 500 V rated value32 A
— at 690 V rated value21 A
● at AC-4 at 400 V rated value22 A
● at AC-5a up to 690 V rated value44 A
● at AC-5b up to 400 V rated value31.5 A
● at AC-6a
— up to 230 V for current peak value n=20 rated value30.8 A
— up to 400 V for current peak value n=20 rated value30.8 A
— up to 500 V for current peak value n=20 rated value30.8 A
— up to 690 V for current peak value n=20 rated value21 A
● at AC-6a
— up to 230 V for current peak value n=30 rated value20.5 A
— up to 400 V for current peak value n=30 rated value20.5 A
— up to 500 V for current peak value n=30 rated value21.4 A
— up to 690 V for current peak value n=30 rated value21 A
minimum cross-section in main circuit at maximum AC-1 rated value10 mm²
operational current for approx. 200000 operating cycles at AC-4
● at 400 V rated value12 A
● at 690 V rated value12 A
operational current
● at 1 current path at DC-1
— at 24 V rated value35 A
— at 110 V rated value4.5 A
— at 220 V rated value1 A
— at 440 V rated value0.4 A
— at 600 V rated value0.25 A
● with 2 current paths in series at DC-1
— at 24 V rated value35 A
— at 110 V rated value35 A
— at 220 V rated value5 A
— at 440 V rated value1 A
— at 600 V rated value0.8 A
● with 3 current paths in series at DC-1
— at 24 V rated value35 A
— at 110 V rated value35 A
— at 220 V rated value35 A
— at 440 V rated value2.9 A
— at 600 V rated value1.4 A
● at 1 current path at DC-3 at DC-5
— at 24 V rated value20 A
— at 110 V rated value2.5 A
— at 220 V rated value1 A
— at 440 V rated value0.09 A
— at 600 V rated value0.06 A
● with 2 current paths in series at DC-3 at DC-5
— at 24 V rated value35 A
— at 110 V rated value15 A
— at 220 V rated value3 A
— at 440 V rated value0.27 A
— at 600 V rated value0.16 A
● with 3 current paths in series at DC-3 at DC-5
— at 24 V rated value35 A
— at 110 V rated value35 A
— at 220 V rated value10 A
— at 440 V rated value0.6 A
— at 600 V rated value0.6 A
operating power
● at AC-1
— at 230 V rated value16 kW
— at 230 V at 60 °C rated value15.5 kW
— at 400 V rated value28 kW
— at 400 V at 60 °C rated value27.5 kW
— at 690 V rated value48 kW
— at 690 V at 60 °C rated value48 kW
● at AC-2 at 400 V rated value18.5 kW
● at AC-3
— at 230 V rated value11 kW
— at 400 V rated value18.5 kW
— at 500 V rated value18.5 kW
— at 690 V rated value18.5 kW
● at AC-3e
— at 230 V rated value11 kW
— at 400 V rated value18.5 kW
— at 500 V rated value18.5 kW
— at 690 V rated value18.5 kW
● at AC-4 at 400 V rated value18.5 kW
operating power for approx. 200000 operating cycles at AC-4
● at 400 V rated value6 kW
● at 690 V rated value10.3 kW
operating apparent power at AC-6a
● up to 230 V for current peak value n=20 rated value12.2 kVA
● up to 400 V for current peak value n=20 rated value21.3 kVA
● up to 500 V for current peak value n=20 rated value26.6 kVA
● up to 690 V for current peak value n=20 rated value25 kVA
operating apparent power at AC-6a
● up to 230 V for current peak value n=30 rated value8.1 VA
● up to 400 V for current peak value n=30 rated value14.2 VA
● up to 500 V for current peak value n=30 rated value18.5 VA
● up to 690 V for current peak value n=30 rated value25 VA
short-time withstand current in cold operating state up to 40 °C
● limited to 1 s switching at zero current maximum593 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 5 s switching at zero current maximum395 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 10 s switching at zero current maximum260 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 30 s switching at zero current maximum186 A; Use minimum cross-section acc. to AC-1 rated value
● limited to 60 s switching at zero current maximum152 A; Use minimum cross-section acc. to AC-1 rated value
no-load switching frequency
● at AC5 000 1/h
operating frequency
● at AC-1 maximum1 000 1/h
● at AC-2 maximum750 1/h
● at AC-3 maximum750 1/h
● at AC-3e maximum750 1/h
● at AC-4 maximum250 1/h
Control circuit/ Control
type of voltage of the control supply voltageAC
control supply voltage at AC
● at 50 Hz rated value230 V
● at 60 Hz rated value230 V
operating range factor control supply voltage rated value of magnet coil at AC
● at 50 Hz0.8 … 1.1
● at 60 Hz0.85 … 1.1
apparent pick-up power of magnet coil at AC
● at 50 Hz81 VA
● at 60 Hz79 VA
inductive power factor with closing power of the coil
● at 50 Hz0.72
● at 60 Hz0.74
apparent holding power of magnet coil at AC
● at 50 Hz10.5 VA
● at 60 Hz8.5 VA
inductive power factor with the holding power of the coil
● at 50 Hz0.25
● at 60 Hz0.28
closing delay
● at AC8 … 40 ms
opening delay
● at AC4 … 16 ms
arcing time10 … 10 ms
control version of the switch operating mechanismStandard A1 – A2
Auxiliary circuit
number of NC contacts for auxiliary contacts instantaneous contact1
number of NO contacts for auxiliary contacts instantaneous contact1
operational current at AC-12 maximum10 A
operational current at AC-15
● at 230 V rated value10 A
● at 400 V rated value3 A
● at 500 V rated value2 A
● at 690 V rated value1 A
operational current at DC-12 at 440 V rated value0.3 A
operational 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
operational 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)
Short-circuit protection
design of the fuse link
● for short-circuit protection of the main circuit
— with type of coordination 1 requiredgG: 125A (690V,50kA)
— with type of assignment 2 requiredgG: 50A (690V,50kA)
● for short-circuit protection of the auxiliary switch requiredgG: 10 A (690 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 methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
height85 mm
width45 mm
depth97 mm
required spacing
● with side-by-side mounting
— forwards10 mm
— upwards10 mm
— downwards10 mm
— at the side0 mm
● for grounded parts
— forwards10 mm
— upwards10 mm
— at the side6 mm
— downwards10 mm
● for live parts
— forwards10 mm
— upwards10 mm
— downwards10 mm
— at the side6 mm
Connections/ Terminals
type of electrical connection
● for main current circuitscrew-type terminals
● for auxiliary and control circuitscrew-type terminals
● at contactor for auxiliary contactsScrew-type terminals
● of magnet coilScrew-type terminals
type of connectable conductor cross-sections for main contacts
● solid2x (1 … 2.5 mm²), 2x (2.5 … 10 mm²)
● solid or stranded2x (1 … 2.5 mm²), 2x (2.5 … 10 mm²)
● finely stranded with core end processing2x (1 … 2.5 mm²), 2x (2.5 … 6 mm²), 1x 10 mm²
connectable conductor cross-section for main contacts
● solid1 … 1 mm²
● solid or stranded1 … 10 mm²
● stranded1 … 10 mm²
● finely stranded with core end processing1 … 10 mm²
connectable conductor cross-section for auxiliary contacts
● solid or stranded0.5 … 2.5 mm²
● finely stranded with core end processing0.5 … 2.5 mm²
type of connectable conductor cross-sections
● for auxiliary contacts
— solid or 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)
● for AWG cables for auxiliary contacts2x (20 … 16), 2x (18 … 14)
AWG number as coded connectable conductor cross section
● for main contacts16 … 8
● for auxiliary contacts20 … 14
Safety related data
proportion of dangerous failures
● with low demand rate according to SN 3192040 %
● with high demand rate according to SN 3192073 %
B10 value with high demand rate according to SN 31920450 000
failure rate [FIT] with low demand rate according to SN 31920100 FIT
IEC 61508
T1 value for proof test interval or service life according to IEC 6150810 a
Electrical Safety
protection class IP on the front according to IEC 60529IP20
touch protection on the front according to IEC 60529finger-safe, for vertical contact from the front

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