Contactors for Data Center PDU and UPS Systems: Selection Guide
AC-1 and AC-6a contactors for data center PDU and UPS systems: sizing, harmonic derating, coil selection, and endurance guidance for engineers. Shop at Stoklink.
- Part number
- 3RT2026-1AP00
In stock · 50+
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· From Türkiye
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- BIS
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- Marine
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Siemens 3RT2026-1AP00 SIRIUS 3-Pole 11kW AC 230V Coil 1NO+1NC Contactor
The Siemens 3RT2026-1AP00 is a 3-pole SIRIUS 3RT2 contactor rated 25 A (AC-3) / 11 kW at 400 V, 15 hp at 480 V, with a 230 V AC 50 Hz coil and 1 NO + 1 NC auxiliary contacts.
Description
About the 3RT2026-1AP00
About the 3RT2026-1AP00
The Siemens 3RT2026-1AP00 is a SIRIUS series 3-pole AC contactor rated at 11 kW with a 230 V AC coil and integrated 1NO+1NC auxiliary contact combination. Designed for motor switching in three-phase circuits, it fits standard DIN rail or screw-mounting installations and targets the load ratings common in machine tool and pump applications.
Applications & Use Cases
The 3RT2026-1AP00 targets three-phase motor loads up to 11 kW — a range covering conveyor drives, centrifugal pumps, compressors, and HVAC fans. The 230 V AC coil voltage matches single-phase control circuits common in European panel designs, eliminating the need for a separate control-voltage transformer in many installations. The factory-integrated 1NO+1NC auxiliary contact block covers the feedback and interlock wiring without adding a clip-on module, keeping panel assembly straightforward.
Specification
Full specification
General 4
| Series | SIRIUS 3RT2 |
|---|---|
| Contactor size / frame | S0 |
| Number of poles | 3 |
| Main contact configuration | 3 NO |
Electrical 8
| Rated operational current Ie, AC-3, 400 V | 25 A |
|---|---|
| Rated motor power, AC-3, 400 V | 11 kW |
| Rated operational current, AC-1 (60 °C) | 35 A |
| Rated operational current, AC-1 (40 °C) | 40 A |
| Rated operational current, AC-4, 400 V | 15.5 A |
| Max. rated operational voltage Ue | 690 V |
| Rated insulation voltage Ui | 690 V |
| Rated impulse withstand voltage Uimp | 6 kV |
Control circuit 5
| Rated control supply voltage Uc | 230 V |
|---|---|
| Coil type | AC |
| Coil frequency | 50 Hz |
| Coil technology | Conventional |
| Coil holding power | 9.8 W | VA |
Show all 53 specifications ↓ Show less ↑36 more values in Identification, Auxiliary contacts, Mechanical, Dimensions and weight, Environmental, North American ratings (UL/CSA), Certifications and standards, Logistics. 125 more as published by Siemens are shown on request.
Identification 14
| Part number | 3RT2026-1AP00 |
|---|---|
| Model code | S0 |
| Brand | Siemens |
| Series | SIRIUS 3RT2 |
| Family | Contactors |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4011209790148 |
| ETIM class | EC000066 |
| eCl@ss | 27371003 |
| UPC | 662643913736 |
| UNSPSC | 39121529 |
Auxiliary contacts 4
| Built-in auxiliary contacts, NO | 1 |
|---|---|
| Built-in auxiliary contacts, NC | 1 |
| Auxiliary contacts | 1 NO + 1 NC |
| Mirror contact (IEC 60947-4-1 Annex F) | Yes |
Mechanical 2
| Main circuit connection | Screw terminal |
|---|---|
| Mounting | 35 mm DIN rail, Panel (screw) mounting |
Dimensions and weight 4
| Width | 45 mm |
|---|---|
| Height | 85 mm |
| Depth | 97 mm |
| Net weight | 0.395 kg |
Environmental 4
| Ambient operating temperature | -25 … 60 °C |
|---|---|
| Degree of protection | IP20 |
| Mechanical durability | 10000000 cycles |
| Max. operating frequency, AC-3 | 750 cycles/h |
North American ratings (UL/CSA) 2
| Motor rating (UL/CSA) | 5 hp @ 200/208 V · 7.5 hp @ 220/230 V · 15 hp @ 460/480 V · 20 hp @ 575/600 V · 2 hp @ 110/120 V (1-ph) · 3 hp @ 230 V (1-ph) |
|---|---|
| Full-load amps @ 480 V | 21 A |
Certifications and standards 1
| Certifications | BIS, CCC, CQC, Marine, UL |
|---|
Logistics 5
| Package dimensions (L × W × H) | 106 × 88 × 55 mm |
|---|---|
| Shipping weight | 0.415 kg |
| Ships from | Türkiye |
| Dispatch | 12 Nov |
| Stock | In stock |
Additional manufacturer data 125 125 more values as published by Siemens, shown on request.
Additional manufacturer data 125
| product brand name | SIRIUS |
|---|---|
| product designation | Power contactor |
| 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 | 5.7 W |
| power loss [W] for rated value of the current · without load current share typical | 2.5 W |
| type of calculation of power loss current-dependent | quadratic |
| insulation voltage · of auxiliary circuit with degree of pollution 3 rated value | 690 V |
| 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 AC | 8,3 g / 5 ms, 5,3 g / 10 ms |
| shock resistance with sine pulse · at AC | 13,5 g / 5 ms, 8,3 g / 10 ms |
| mechanical service life (operating cycles) · of the contactor with added electronically optimized auxiliary switch block typical | 5 000 000 |
| reference code according to IEC 81346-2 | Q |
| Substance Prohibitance (day/month/year) | 10/01/2009 |
| installation altitude at height above sea level maximum | 2 000 m |
| ambient temperature · during storage | -55 ... +80 °C |
| relative humidity minimum | 10 % |
| relative humidity at 55 °C according to IEC 60068-2-30 | 95 % |
| number of NC contacts for main contacts | 0 |
| operating voltage · at AC-3e rated value maximum | 690 V |
| operational current · at AC-1 · up to 690 V at ambient temperature 40 °C rated value | 40 A |
| operational current · at AC-3 · at 500 V rated value | 18 A |
| operational current · at AC-3 · at 690 V rated value | 13 A |
| operational current · at AC-3e · at 400 V rated value | 25 A |
| operational current · at AC-3e · at 500 V rated value | 18 A |
| operational current · at AC-3e · at 690 V rated value | 13 A |
| operational current · at AC-5a up to 690 V rated value | 35.2 A |
| operational current · at AC-5b up to 400 V rated value | 20.7 A |
| operational current · at AC-6a · up to 230 V for current peak value n=20 rated value | 20.2 A |
| operational current · at AC-6a · up to 400 V for current peak value n=20 rated value | 20.2 A |
| operational current · at AC-6a · up to 500 V for current peak value n=20 rated value | 20.2 A |
| operational current · at AC-6a · up to 690 V for current peak value n=20 rated value | 12.9 A |
| minimum cross-section in main circuit at maximum AC-1 rated value | 10 mm2 |
| operational current for approx. 200000 operating cycles at AC-4 · at 400 V rated value | 9 A |
| operational current · at 1 current path at DC-1 · at 24 V rated value | 35 A |
| operational current · at 1 current path at DC-1 · at 60 V rated value | 20 A |
| operational current · at 1 current path at DC-1 · at 110 V rated value | 4.5 A |
| operational current · at 1 current path at DC-1 · at 220 V rated value | 1 A |
| operational current · at 1 current path at DC-1 · at 440 V rated value | 0.4 A |
| operational current · at 1 current path at DC-1 · at 600 V rated value | 0.25 A |
| operational current · with 2 current paths in series at DC-1 · at 24 V rated value | 35 A |
| operational current · with 3 current paths in series at DC-1 · at 24 V rated value | 35 A |
| operating frequency · at AC-1 maximum | 1 000 1/h |
| operating frequency · at AC-2 maximum | 750 1/h |
| operating frequency · at AC-3e · maximum | 750 1/h |
| operating frequency · at AC-4 maximum | 250 1/h |
| operating range factor control supply voltage rated value of magnet coil at AC · at 50 Hz | 0.8 ... 1.1 |
| apparent pick-up power of magnet coil at AC · at 50 Hz | 77 V-A |
| inductive power factor with closing power of the coil · at 50 Hz | 0.82 |
| inductive power factor with the holding power of the coil · at 50 Hz | 0.25 |
| closing delay · at AC | 8 ... 40 ms |
| opening delay · at AC | 4 ... 16 ms |
| arcing time | 10 ms |
| control version of the switch operating mechanism | Standard A1 - A2 |
| 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 | 0.3 A |
| operational current at DC-13 · at 220 V rated value | 0.3 A |
| operational current at DC-13 · at 600 V rated value | 0.3 A |
| contact reliability of auxiliary contacts | 1 faulty switching per 100 million (17 V, 1 mA) |
| full-load current (FLA) for 3-phase AC motor · at 600 V rated value | 22 A |
| yielded mechanical performance [hp] · for single-phase AC motor · at 110/120 V rated value | 2 hp |
| yielded mechanical performance [hp] · for 3-phase AC motor · at 200/208 V rated value | 5 hp |
| yielded mechanical performance [hp] · for 3-phase AC motor · at 220/230 V rated value | 7.5 hp |
| yielded mechanical performance [hp] · for 3-phase AC motor · at 460/480 V rated value | 15 hp |
| yielded mechanical performance [hp] · for 3-phase AC motor · at 575/600 V rated value | 20 hp |
| contact rating of auxiliary contacts according to UL | A600 / P600 |
| 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 |
| design of the fuse link · for short-circuit protection of the main circuit · with type of coordination 1 required | gG: 100 A (690 V, 100 kA), aM: 50 A (690 V, 100 kA), BS88: 100 A (415 V, 80 kA) |
| 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 |
| required spacing · with side-by-side mounting · forwards | 10 mm |
| required spacing · with side-by-side mounting · upwards | 10 mm |
| required spacing · with side-by-side mounting · downwards | 10 mm |
| required spacing · with side-by-side mounting · at the side | 0 mm |
| required spacing · for grounded parts · forwards | 10 mm |
| required spacing · for grounded parts · upwards | 10 mm |
| required spacing · for grounded parts · at the side | 6 mm |
| required spacing · for grounded parts · downwards | 10 mm |
| required spacing · for live parts · forwards | 10 mm |
| required spacing · for live parts · upwards | 10 mm |
| required spacing · for live parts · downwards | 10 mm |
| required spacing · for live parts · at the side | 6 mm |
| 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 |
| type of connectable conductor cross-sections · for main contacts · solid | 2x (1 ... 2.5 mm2), 2x (2.5 ... 10 mm2) |
| type of connectable conductor cross-sections · for AWG cables for main contacts | 2x (16 ... 12), 2x (14 ... 8) |
| connectable conductor cross-section for main contacts · solid | 1 ... 10 mm2 |
| connectable conductor cross-section for main contacts · stranded | 1 ... 10 mm2 |
| connectable conductor cross-section for main contacts · finely stranded with core end processing | 1 ... 10 mm2 |
| connectable conductor cross-section for auxiliary contacts • solid or stranded • finely stranded with core end processing | 0.5 ... 2.5 mm2 0.5 ... 2.5 mm2 |
| type of connectable conductor cross-sections • for auxiliary contacts — solid or stranded — finely stranded with core end processing • for AWG cables for auxiliary contacts | 2x (0.5 ... 1.5 mm2), 2x (0.75 ... 2.5 mm2) 2x (0.5 ... 1.5 mm2), 2x (0.75 ... 2.5 mm2) 2x (20 ... 16), 2x (18 ... 14) |
| AWG number as coded connectable conductor cross section for main contacts | 16 ... 8 |
| product function • mirror contact according to IEC 60947-4-1 • positively driven operation according to IEC 60947-5-1 • suitable for safety function | Yes No Yes |
| suitability for use safety-related switching OFF | Yes |
| service life maximum | 20 a |
| test wear-related service life necessary | Yes |
| proportion of dangerous failures • with low demand rate according to SN 31920 • with high demand rate according to SN 31920 | 40 % 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 |
| device type according to ISO 13849-1 | 3 |
| overdimensioning according to ISO 13849-2 necessary | Yes |
| safety device type according to IEC 61508-2 | Type A |
| touch protection on the front according to IEC 60529 | finger-safe, for vertical contact from the front |
| Environmental Product Declaration · global warming potential [CO2 eq] / during manufacturing • global warming potential [CO2 eq] / during operation • global warming potential [CO2 eq] / after end of life • global warming potential [CO2 eq] / total | 1.9 kg 72.4 kg -0.117 kg 74.2 kg |
| Environment | General Product Approval |
| Test Certificates | Maritime application |
| other | Railway |
| Miscellaneous Confirmation Confirmation Miscellaneous | Special Test Certific- ate |
Source: manufacturer data · Last verified: 28 Oct 2026
Documents
Documents for 3RT2026-1AP00 8
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Datasheet
ProductDownload PDF: Product data sheet 3RT2026-1AP00 (TED)
Product data sheet 3RT2026-1AP00 (TED)
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Certificate
ProductDownload PDF: CCC Certificate 2024010304648792
CCC Certificate 2024010304648792
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Certificate
ProductDownload PDF: CCC Certificate 2024010304673110
CCC Certificate 2024010304673110
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Certificate
ProductDownload PDF: Electrical Equipment Quality Control Order Scheme-X L-4100288693
Electrical Equipment Quality Control Order Scheme-X L-4100288693
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Certificate
ProductDownload PDF: Type Approval Certificate LR26258107TA
Type Approval Certificate LR26258107TA
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Certificate
ProductDownload PDF: Type Test Certificate ( according Product-Standards ) TC0045
Type Test Certificate ( according Product-Standards ) TC0045
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Certificate
ProductDownload PDF: cURus Certificate of Compliance - A2L - UL 60335-2-40 Annex JJ E14900
cURus Certificate of Compliance - A2L - UL 60335-2-40 Annex JJ E14900
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Application note
ProductDownload PDF: Safety characteristics - standard B10 values/failure rates of electromechanical SIRIUS and SENTRON products
Safety characteristics - standard B10 values/failure rates of electromechanical SIRIUS and SENTRON products
Certifications
Certifications and standards
- BIS
- CCC
- CQC
- Marine
- UL
Quick answers
Questions about the 3RT2026-1AP00
What is the rated current of 3RT2026-1AP00?
The rated current of 3RT2026-1AP00 is 25 A (AC-3, 400 V).
Which supply voltage is 3RT2026-1AP00 rated for?
The rated operational voltage of 3RT2026-1AP00 is 690 V AC.
What motor power is 3RT2026-1AP00 rated for?
The rated motor power of 3RT2026-1AP00 is 11 kW (AC-3, 400 V).
Which control voltage does 3RT2026-1AP00 need?
The control voltage range of 3RT2026-1AP00 is 230 V AC.
What is the EAN of 3RT2026-1AP00?
The EAN (GTIN) of 3RT2026-1AP00 is 4011209790148.
Where does 3RT2026-1AP00 ship from, and how fast?
3RT2026-1AP00 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1 business day.
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Series
Siemens SIRIUS 3RT2
- Brand
- Siemens
- Series
- SIRIUS 3RT2
