3RT1026-1AN24
CONTACTOR, AC-3 11 KW / 400 V,

From SIEMENS

Power contactor, AC-3 25 A, 11 kW / 400 V 220 V AC, 50 / 60 Hz, 2 NO + 2 NC 3-pole, Size S0 Screw terminal !!! Phased-out product !!! Successor is SIRIUS 3RT2 Preferred successor type is >>3RT2026-1AN24<<
Product brand nameSIRIUS
Product designationpower contactor
General technical data
Size of contactorS0
Degree of pollution3
Protection class IP
on the frontIP20
of the terminalIP00
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 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
Number of NC contacts for main contacts0
Operating current
at AC-1 at 400 V
— at ambient temperature 40 °C rated value40 A
at AC-1
— up to 690 V at ambient temperature 40 °C rated value40 A
— up to 690 V at ambient temperature 60 °C rated value35 A
at AC-3
— at 400 V rated value25 A
at AC-4 at 400 V rated value15.5 A
Operating current
at 1 current path at DC-1
— at 24 V rated value35 A
— at 110 V rated value4.5 A
with 2 current paths in series at DC-1
— at 24 V rated value35 A
— at 110 V rated value35 A
with 3 current paths in series at DC-1
— at 24 V rated value35 A
— at 110 V rated value35 A
Operating current
at 1 current path at DC-3 at DC-5
— at 24 V rated value20 A
— at 110 V rated value2.5 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
with 3 current paths in series at DC-3 at DC-5
— at 24 V rated value35 A
— at 110 V rated value35 A
Operating power
at AC-1
— at 400 V rated value23 kW
at AC-2 at 400 V rated value11 kW
at AC-3
— at 400 V rated value11 kW
— at 500 V rated value11 kW
— at 690 V rated value11 kW
Power loss [W] at AC-3 at 400 V for rated value of the operating current per conductor1.6 W
Control circuit/ Control
Type of voltage of the control supply voltageAC
Control supply voltage at AC
at 50 Hz rated value220 V
at 60 Hz rated value220 V
Control supply voltage frequency
1 rated value50 Hz
2 rated value60 Hz
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 AC64 V·A
Inductive power factor with closing power of the coil0.72
Apparent holding power of magnet coil at AC8.4 V·A
Inductive power factor with the holding power of the coil0.24
Auxiliary circuit
Number of NC contacts for auxiliary contacts
instantaneous contact2
Number of NO contacts for auxiliary contacts
instantaneous contact2
Operating current at AC-12 maximum10 A
Operating current at AC-15
at 230 V rated value6 A
at 400 V rated value3 A
Operating current at DC-12
at 60 V rated value6 A
at 110 V rated value3 A
at 220 V rated value1 A
Operating current at DC-13
at 24 V rated value10 A
at 60 V rated value2 A
at 110 V rated value1 A
at 220 V rated value0.3 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 requiredfuse gL/gG: 100 A
— with type of assignment 2 requiredfuse gL/gG: 35 A
for short-circuit protection of the auxiliary switch requiredfuse gL/gG: 10 A
Installation/ mounting/ dimensions
Mounting typescrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
Height85 mm
Width45 mm
Depth140 mm
Required spacing
for grounded parts
— at the side6 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
— solid2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), max. 2x 10 mm²
— single or multi-stranded2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²
— finely stranded with core end processing2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)
at AWG conductors for main contacts2x (16 ... 12), 2x (14 ... 10), 1x 8
Type of connectable conductor cross-sections
for auxiliary contacts
— solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 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), 1x 12

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