Datasheet Content
Data sheet 3RT2526-1AC20
Power contactor, AC-3 25 A, 11 kW / 400 V 2 NO + 2 NC 24 V AC,
50/60 Hz 4-pole size S0 screw terminals 1 NO + 1 NC integrated
Product brand name SIRIUS
Product designation contactor
Product type designation 3RT25
General technical data
Size of contactor S0
Product extension
● function module for communication No
● Auxiliary switch Yes
Surge voltage resistance
● of main circuit rated value 6 kV
● of auxiliary circuit rated value 6 kV
maximum permissible voltage for safe isolation
● between coil and main contacts acc. to EN 400 V
60947-1
Protection class IP
● on the front IP20
● of the terminal IP20
Shock resistance at rectangular impulse
● at AC 8,3g / 5 ms, 5,3g / 10 ms
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Shock resistance with sine pulse
● at AC 13,5g / 5 ms, 8,3g / 10 ms
Mechanical service life (switching cycles)
● of contactor typical 10 000 000
● of the contactor with added electronics- 5 000 000
compatible auxiliary switch block typical
● of the contactor with added auxiliary switch 10 000 000
block typical
Reference code acc. to DIN EN 81346-2 Q
Ambient conditions
Installation altitude at height above sea level
● maximum 2 000 m
Main circuit
Number of poles for main current circuit 4
Number of NO contacts for main contacts 2
Number of NC contacts for main contacts 2
Operating current
● at AC-1
— up to 690 V at ambient temperature 40 °C 40 A
rated value
— up to 690 V at ambient temperature 60 °C 35 A
rated value
● at AC-2 at AC-3 at 400 V
— per NO contact rated value 25 A
— per NC contact rated value 25 A
Connectable conductor cross-section in main circuit
at AC-1
● at 60 °C minimum permissible 10 mm²
● at 40 °C minimum permissible 10 mm²
Operating current
● at 1 current path at DC-1
— at 24 V rated value 35 A
— at 110 V rated value 4.5 A
— at 220 V rated value 1A
— at 440 V rated value 0.4 A
● with 2 current paths in series at DC-1
— at 24 V rated value 35 A
— at 110 V rated value 35 A
— at 220 V rated value 5A
— at 440 V rated value 1A
Operating current
● at 1 current path at DC-3 at DC-5
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— at 24 V per NC contact rated value 20 A
— at 24 V per NO contact rated value 20 A
— at 110 V per NC contact rated value 1.25 A
— at 110 V per NO contact rated value 2.5 A
— at 220 V per NC contact rated value 0.5 A
— at 220 V per NO contact rated value 1A
— at 440 V per NC contact rated value 0.045 A
— at 440 V per NO contact rated value 0.09 A
● with 2 current paths in series at DC-3 at DC-5
— at 24 V per NC contact rated value 35 A
— at 24 V per NO contact rated value 35 A
— at 110 V per NC contact rated value 7.5 A
— at 110 V per NO contact rated value 15 A
— at 220 V per NC contact rated value 1.5 A
— at 220 V per NO contact rated value 3A
— at 440 V per NC contact rated value 0.135 A
— at 440 V per NO contact rated value 0.27 A
Operating power
● at AC-1
— at 230 V rated value 15 kW
— at 400 V rated value 26 kW
● at AC-2 at AC-3
— at 230 V per NC contact rated value 5.5 kW
— at 230 V per NO contact rated value 5.5 kW
— at 400 V per NC contact rated value 11 kW
— at 400 V per NO contact rated value 11 kW
Power loss [W] at AC-3 at 400 V for rated value of 1.6 W
the operating current per conductor
No-load switching frequency
● at AC 5 000 1/h
● at DC 1 500 1/h
Operating frequency
● at AC-1 maximum 1 000 1/h
Control circuit/ Control
Type of voltage of the control supply voltage AC
Control supply voltage at AC
● at 50 Hz rated value 24 V
● at 60 Hz rated value 24 V
Operating range factor control supply voltage rated
value of magnet coil at AC
● at 50 Hz 0.8 ... 1.1
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● at 60 Hz 0.85 ... 1.1
Apparent pick-up power of magnet coil at AC 81 V·A
● at 50 Hz 81 V·A
● at 60 Hz 79 V·A
Inductive power factor with closing power of the coil 0.82
● at 50 Hz 0.72
● at 60 Hz 0.74
Apparent holding power of magnet coil at AC 10.5 V·A
● at 50 Hz 10.5 V·A
● at 60 Hz 8.5 V·A
Inductive power factor with the holding power of the 0.25
coil
● at 50 Hz 0.25
● at 60 Hz 0.28
Closing delay
● at AC 8 ... 40 ms
Opening delay
● at AC 4 ... 16 ms
Arcing time 10 ... 10 ms
Residual current of the electronics for control with
signal <0>
● at AC at 230 V maximum permissible 0.007 A
Auxiliary circuit
Number of NC contacts for auxiliary contacts
● instantaneous contact 1
Number of NO contacts for auxiliary contacts
● instantaneous contact 1
Operating current at AC-12 maximum 10 A
Operating current at AC-15
● at 230 V rated value 10 A
● at 400 V rated value 3A
● at 500 V rated value 2A
● at 690 V rated value 1A
Operating current at DC-12
● at 24 V rated value 10 A
● at 48 V rated value 6A
● at 60 V rated value 6A
● at 110 V rated value 3A
● at 125 V rated value 2A
● at 220 V rated value 1A
● at 600 V rated value 0.15 A
Operating current at DC-13
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● at 24 V rated value 10 A
● at 48 V rated value 2A
● at 60 V rated value 2A
● at 110 V rated value 1A
● 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
Yielded mechanical performance [hp]
● for single-phase AC motor
— at 110/120 V rated value 2 hp
— at 230 V rated value 3 hp
Contact rating of auxiliary contacts according to UL A600 / Q600
Short-circuit protection
Design of the fuse link
● for short-circuit protection of the main circuit
— with type of coordination 1 required gG: 63 A (690 V, 100 kA)
— with type of assignment 2 required gG: 35 A (690 V, 50 kA)
● for short-circuit protection of the auxiliary switch fuse gG: 10 A
required
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 50022
● Side-by-side mounting Yes
Height 85 mm
Width 61 mm
Depth 97 mm
Required spacing
● with side-by-side mounting
— forwards 0 mm
— Backwards 0 mm
— upwards 0 mm
— downwards 0 mm
— at the side 0 mm
● for grounded parts
— forwards 0 mm
— Backwards 0 mm
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— upwards 0 mm
— at the side 6 mm
—…
