Siemens power contactor, AC-3, 25 A, 11 kW / 400 V, 4-pole, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, size: S0

Name: Siemens power contactor, AC-3, 25 A, 11 kW / 400 V, 4-pole, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, size: S0
Brand: Siemens
SKU: SIE.SIE-PAR-3RT2526-03
Price: 212.00 EUR
Availability: InStock

Item No.: SIE.SIE-PAR-3RT2526-03

HAN: SIE-PAR-3RT2526-03

from 212,00 €

excl. 19% VAT (Paket)

Coil connection

Coil voltage

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Product designation: contactor | Product type designation: 3RT25 | Size of contactor: S0 | Control supply voltage at DC rated value: 12 V | Number of NO contacts for auxiliary contacts instantaneous contact: 1 | Number of NC contacts for auxiliary contacts instantaneous contact: 1 | Type of electrical connection for main current circuit: screw-type terminals | Mounting position: +/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface More product details

Product Information

Item information	Value
Category:	SIRIUS 3RT power contactors, 4-pole

Product Description

Siemens power contactor, AC-3, 25 A, 11 kW / 400 V, 4-pole, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, size: S0

power contactor, AC-3, 25 A, 11 kW / 400 V, 4-pole, main contacts: 2 NO + 2 NC, auxiliary contacts: 1 NO + 1 NC, size: S0

Available variants

Coil voltage: 12 V, 24 V, 60 V, 110 V, 125 V, 220 V, 230 V, 48 V
Coil connection: screw terminal, Spring-loaded terminal

Technical data

Product data (5)

Article number	3RT2526-1BA40
EAN	4047621029481
Product brand name	SIRIUS
Product designation	contactor
Product type designation	3RT25

General technical data (17)

Size of contactor	S0
Product extension function module for communication	No
Product extension auxiliary switch	Yes
Power loss [W] for rated value of the current at AC in hot operating state per pole	1.9 W
Power loss [W] for rated value of the current without load current share typical	5.9 W
Type of calculation of power loss current-dependent	quadratic
Insulation voltage of main circuit with degree of pollution 3 rated value	690 V
Insulation voltage of auxiliary circuit with degree of pollution 3 rated value	690 V
Surge voltage resistance of main circuit rated value	6 kV
Surge voltage resistance of auxiliary circuit rated value	6 kV
Maximum permissible voltage for protective separation between coil and main contacts according to EN 60947-1	400 V
Shock resistance at rectangular impulse at DC	10g / 5 ms, 7,5g / 10 ms
Shock resistance with sine pulse at DC	15 g / 5 ms, 10 g / 10 ms
Mechanical service life (operating cycles) of contactor typical	10 000 000
Mechanical service life (operating cycles) of the contactor with added electronically optimized auxiliary switch block typical	5 000 000
Mechanical service life (operating cycles) of the contactor with added auxiliary switch block typical	10 000 000
Reference code according to IEC 81346-2	Q

Ambient conditions (5)

Installation altitude at height above sea level maximum	2 000 m
Ambient temperature during operation	-25 ... +60 °C
Ambient temperature during storage	-55 ... +80 °C
Relative humidity minimum	10 %
Relative humidity at 55 °C according to IEC 60068-2-30 maximum	95 %

Main circuit (46)

Number of poles for main current circuit	4
Number of NO contacts for main contacts	2
Number of NC contacts for main contacts	2
At AC-1 up to 690 V at ambient temperature 40 °C rated value	40 A
At AC-1 up to 690 V at ambient temperature 60 °C rated value	35 A
At AC-2 at AC-3 at 400 V per NO contact rated value	25 A
At AC-2 at AC-3 at 400 V per NC contact rated value	20 A
Minimum cross-section in main circuit at maximum AC-1 rated value	10 mm²
At 1 current path at DC-1 at 24 V rated value	35 A
At 1 current path at DC-1 at 110 V rated value	4.5 A
At 1 current path at DC-1 at 220 V rated value	1 A
At 1 current path at DC-1 at 440 V rated value	0.4 A
With 2 current paths in series at DC-1 at 24 V rated value	35 A
With 2 current paths in series at DC-1 at 110 V rated value	35 A
With 2 current paths in series at DC-1 at 220 V rated value	5 A
With 2 current paths in series at DC-1 at 440 V rated value	1 A
At 1 current path at DC-3 at DC-5 at 24 V per NC contact rated value	20 A
At 1 current path at DC-3 at DC-5 at 24 V per NO contact rated value	20 A
At 1 current path at DC-3 at DC-5 at 110 V per NC contact rated value	1.25 A
At 1 current path at DC-3 at DC-5 at 110 V per NO contact rated value	2.5 A
At 1 current path at DC-3 at DC-5 at 220 V per NC contact rated value	0.5 A
At 1 current path at DC-3 at DC-5 at 220 V per NO contact rated value	1 A
At 1 current path at DC-3 at DC-5 at 440 V per NC contact rated value	0.045 A
At 1 current path at DC-3 at DC-5 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
With 2 current paths in series at DC-3 at DC-5 at 24 V per NO contact rated value	35 A
With 2 current paths in series at DC-3 at DC-5 at 110 V per NC contact rated value	7.5 A
With 2 current paths in series at DC-3 at DC-5 at 110 V per NO contact rated value	15 A
With 2 current paths in series at DC-3 at DC-5 at 220 V per NC contact rated value	1.5 A
With 2 current paths in series at DC-3 at DC-5 at 220 V per NO contact rated value	3 A
With 2 current paths in series at DC-3 at DC-5 at 440 V per NC contact rated value	0.135 A
With 2 current paths in series at DC-3 at DC-5 at 440 V per NO contact rated value	0.27 A
Operating power at AC-2 at AC-3 at 230 V per NC contact rated value	5.5 kW
Operating power at AC-2 at AC-3 at 230 V per NO contact rated value	5.5 kW
Operating power at AC-2 at AC-3 at 400 V per NC contact rated value	7.5 kW
Operating power at AC-2 at AC-3 at 400 V per NO contact rated value	11 kW
Short-time withstand current in cold operating state up to 40 °C limited to 1 s switching at zero current maximum	200 A; Use minimum cross-section acc. to AC-1 rated value
Short-time withstand current in cold operating state up to 40 °C limited to 5 s switching at zero current maximum	200 A; Use minimum cross-section acc. to AC-1 rated value
Short-time withstand current in cold operating state up to 40 °C limited to 10 s switching at zero current maximum	200 A; Use minimum cross-section acc. to AC-1 rated value
Short-time withstand current in cold operating state up to 40 °C limited to 30 s switching at zero current maximum	128 A; Use minimum cross-section acc. to AC-1 rated value
Short-time withstand current in cold operating state up to 40 °C limited to 60 s switching at zero current maximum	106 A; Use minimum cross-section acc. to AC-1 rated value
Power loss [W] at AC-3 at 400 V for rated value of the operational current per conductor	1.9 W
Power loss [W] at AC-3e at 400 V for rated value of the operational current per conductor	1.9 W
No-load switching frequency at AC	5 000 1/h
No-load switching frequency at DC	1 500 1/h
Operating frequency at AC-1 maximum	1 000 1/h

Control circuit/ Control (9)

Type of voltage of the control supply voltage	DC
Control supply voltage at DC rated value	12 V
Operating range factor control supply voltage rated value of magnet coil at DC initial value	0.8
Operating range factor control supply voltage rated value of magnet coil at DC full-scale value	1.1
Closing power of magnet coil at DC	5.9 W
Holding power of magnet coil at DC	5.9 W
Closing delay at DC	50 ... 170 ms
Opening delay at DC	15 ... 18 ms
Arcing time	10 ms

Auxiliary circuit (22)

Number of NC contacts for auxiliary contacts instantaneous contact	1
Number of NO contacts for auxiliary contacts instantaneous contact	1
Operational current at AC-12 maximum	10 A
Operational current at AC-15 at 230 V rated value	10 A
Operational current at AC-15 at 400 V rated value	3 A
Operational current at AC-15 at 500 V rated value	2 A
Operational current at AC-15 at 690 V rated value	1 A
Operational current at DC-12 at 24 V rated value	10 A
Operational current at DC-12 at 48 V rated value	6 A
Operational current at DC-12 at 60 V rated value	6 A
Operational current at DC-12 at 110 V rated value	3 A
Operational current at DC-12 at 125 V rated value	2 A
Operational current at DC-12 at 220 V rated value	1 A
Operational current at DC-12 at 600 V rated value	0.15 A
Operational current at DC-13 at 24 V rated value	10 A
Operational current at DC-13 at 48 V rated value	2 A
Operational current at DC-13 at 60 V rated value	2 A
Operational current at DC-13 at 110 V rated value	1 A
Operational current at DC-13 at 125 V rated value	0.9 A
Operational current at DC-13 at 220 V rated value	0.3 A
Operational current at DC-13 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 (4)

Yielded mechanical performance [hp] for single-phase AC motor at 230 V rated value	3 hp
Yielded mechanical performance [hp] for 3-phase AC motor at 460/480 V rated value	15 hp
Contact rating of auxiliary contacts according to UL	A600 / Q600
UL File Number (CCN)	E31519 (NLDX, NLDX7)

Short-circuit protection (4)

Design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V	C characteristic: 10 A; 0.4 kA
For short-circuit protection of the main circuit with type of coordination 1 required	gG: 63 A (690 V, 100 kA)
For short-circuit protection of the main circuit with type of coordination 2 required	gG: 35 A (690 V, 50 kA)
For short-circuit protection of the main circuit for short-circuit protection of the auxiliary switch required	gG: 10 A (690 V, 1 kA)

Installation/ mounting/ dimensions (21)

Mounting position	+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
Fastening method side-by-side mounting	Yes
Fastening method	screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022
Height	85 mm
Width	61 mm
Depth	107 mm
With side-by-side mounting forwards	0 mm
With side-by-side mounting backwards	0 mm
With side-by-side mounting upwards	0 mm
With side-by-side mounting downwards	0 mm
With side-by-side mounting at the side	0 mm
For grounded parts forwards	0 mm
For grounded parts backwards	0 mm
For grounded parts upwards	0 mm
For grounded parts at the side	6 mm
For grounded parts downwards	0 mm
For live parts forwards	0 mm
For live parts backwards	0 mm
For live parts upwards	0 mm
For live parts downwards	0 mm
For live parts at the side	6 mm

Connections/ Terminals (14)

Type of electrical connection for main current circuit	screw-type terminals
Type of electrical connection for auxiliary and control circuit	screw-type terminals
Type of electrical connection at contactor for auxiliary contacts	Screw-type terminals
Type of electrical connection of magnet coil	screw terminal
For main contacts solid	2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
For main contacts solid or stranded	2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)
For main contacts finely stranded with core end processing	2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm²
For main contacts for AWG cables for main contacts	2x (16 ... 12), 2x (14 ... 8)
For auxiliary contacts solid	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
For auxiliary contacts solid or stranded	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
For auxiliary contacts finely stranded with core end processing	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
For auxiliary contacts for AWG cables for auxiliary contacts	2x (20 ... 16), 2x (18 ... 14)
AWG number as coded connectable conductor cross section for main contacts	16 ... 8
AWG number as coded connectable conductor cross section for auxiliary contacts	20 ... 14

Safety related data (4)

Product function mirror contact according to IEC 60947-4-1	Yes
Product function positively driven operation according to IEC 60947-5-1	No
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

Shipping & customs (3)

Weight	0,625 kg
Customs tariff number	85364190
Country of origin	Germany

Product benefits

Proven SIRIUS 3RT range from Siemens – available worldwide and maintained over decades
Consistent modular system: auxiliary switches, surge suppressors and link modules fit across sizes
Screw or spring-loaded terminals – spring-loaded saves assembly time and is vibration-proof
Versions with electronic operating mechanism reduce holding power and work over a wide voltage range
Approvals to IEC and UL/CSA, so the same plant can be operated in Europe and North America

Your advantages when buying from us

Worldwide shipping of all switching and control devices
Large stock levels for many products – just ask us for current delivery times
Accessories, spare parts and matching modules are available as well
Fast delivery from stock by UPS (parcel) or DSV (pallet), express shipping on request
Extensive application know-how from many years of practice
Personal advice on choosing the right component
Dealers receive volume-based trade discounts on request – talk to us directly
Large companies, authorities and public bodies can order on account – please enquire via our contact form

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