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
- 3RT2327-1AP00
- Model no
- 3RT23
In stock · 33
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· From Türkiye
0
Siemens 3RT2327-1AP00 3RT2 50A 4P 400V Contactor
Other ratings in Siemens 3RT2
All 9 ratings ↓
| Motor power kW | Rated current In (A) | Part number | Stock | Price |
|---|---|---|---|---|
| 35 | 3RT2325-1AP00 | In stock | $54.80 | |
| 40 | 3RT2326-1AP00 | In stock | $77.23 | |
| 50 | 3RT2327-1AP00This part | In stock | $120.46 | |
| 60 | 3RT2336-1AP00 | In stock | $149.22 | |
| 110 | 3RT2337-1AP00 | Low stock | $205.44 |
Description
About the 3RT23
About the 3RT23
The Siemens 3RT2327-1AP00 is a contactor from the SENTRON/SIRIUS 3RT2 series. Contactor AC-1, 50 A, 400 V / 40 °C, 4-pole, 230 V AC, 50 Hz, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S0. Supplied by Stoklink for industrial and commercial low-voltage applications.
Certifications & Standards
- EN 60715
Applications & Use Cases
The Siemens 3RT2327-1AP00 is used in industrial control panels, distribution boards and automation systems. As part of the Siemens 3RT2 range it integrates with compatible SENTRON/SIRIUS components for a coordinated low-voltage installation. Genuine Siemens product supplied by Stoklink with fast dispatch from Türkiye.
Specification
Full specification
General 3
| product brand name | SIRIUS |
|---|---|
| product designation | Contactor |
| product type designation | 3RT23 |
General technical data 16
| 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 | 12 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 main circuit with degree of pollution 3 rated value | 690 V |
| insulation voltage: of the auxiliary and control 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 |
| 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 contactor typical | 10 000 000 |
| 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 |
| Substance Prohibitance (day/month/year) | 10/01/2009 |
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 % |
Show all 167 specifications ↓ Show less ↑143 more values in Identification, Main circuit, Control circuit/ Control, Auxiliary circuit, UL/CSA ratings, Short-circuit protection, Installation/ mounting/ dimensions, Connections/ Terminals, Safety related data, Electrical Safety, Communication/ Protocol, Approvals Certificates, Logistics.
Identification 10
| Part number | 3RT2327-1AP00 |
|---|---|
| Type designation | 3RT23 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4011209834774 |
| ETIM class | EC000066 |
| eCl@ss | 27371003 |
Main circuit 43
| number of poles for main current circuit | 4 |
|---|---|
| number of NO contacts for main contacts | 4 |
| type of voltage for main current circuit | AC |
| operational current: at AC-1 at 400 V at ambient temperature 40 °C rated value | 50 A |
| at AC-1: up to 690 V at ambient temperature 40 °C rated value | 50 A |
| at AC-1: up to 690 V at ambient temperature 60 °C rated value | 42 A |
| at AC-3: at 400 V rated value | 15.5 A |
| at AC-3: at AC-4 at 400 V rated value | 15.5 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 | 42 A |
| at 1 current path at DC-1: at 60 V rated value | 20 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 | 42 A |
| with 2 current paths in series at DC-1: at 60 V rated value | 42 A |
| with 2 current paths in series at DC-1: at 110 V rated value | 42 A |
| with 2 current paths in series at DC-1: at 220 V rated value | 1 A |
| with 2 current paths in series at DC-1: at 440 V rated value | 1 A |
| with 3 current paths in series at DC-1: at 24 V rated value | 42 A |
| with 3 current paths in series at DC-1: at 60 V rated value | 42 A |
| with 3 current paths in series at DC-1: at 110 V rated value | 42 A |
| with 3 current paths in series at DC-1: at 220 V rated value | 42 A |
| with 3 current paths in series at DC-1: at 440 V rated value | 2.9 A |
| at 1 current path at DC-3 at DC-5: at 24 V rated value | 20 A |
| at 1 current path at DC-3 at DC-5: at 60 V rated value | 5 A |
| at 1 current path at DC-3 at DC-5: at 110 V rated value | 2.5 A |
| at 1 current path at DC-3 at DC-5: at 220 V rated value | 1 A |
| at 1 current path at DC-3 at DC-5: at 440 V rated value | 0.09 A |
| with 2 current paths in series at DC-3 at DC-5: at 24 V rated value | 42 A |
| with 2 current paths in series at DC-3 at DC-5: at 60 V rated value | 42 A |
| with 2 current paths in series at DC-3 at DC-5: at 110 V rated value | 15 A |
| with 2 current paths in series at DC-3 at DC-5: at 220 V rated value | 3 A |
| with 2 current paths in series at DC-3 at DC-5: at 440 V rated value | 0.27 A |
| with 3 current paths in series at DC-3 at DC-5: at 24 V rated value | 42 A |
| with 3 current paths in series at DC-3 at DC-5: at 60 V rated value | 42 A |
| with 3 current paths in series at DC-3 at DC-5: at 110 V rated value | 42 A |
| with 3 current paths in series at DC-3 at DC-5: at 220 V rated value | 10 A |
| with 3 current paths in series at DC-3 at DC-5: at 440 V rated value | 0.6 A |
| operating power: at AC-3 at 400 V rated value | 7.5 kW |
| operating power: at AC-4 at 400 V rated value | 7.5 kW |
| no-load switching frequency: at AC | 5 000 1/h |
| operating frequency: at AC-1 maximum | 1 000 1/h |
Control circuit/ Control 12
| type of voltage | AC |
|---|---|
| type of voltage of the control supply voltage | AC |
| control supply voltage at AC: at 50 Hz rated value | 230 V |
| 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 |
| apparent holding power of magnet coil at AC: at 50 Hz | 9.8 V·A |
| 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 |
Auxiliary circuit 23
| number of NC contacts for auxiliary contacts | 1 |
|---|---|
| attachable | 2 |
| instantaneous contact | 1 |
| number of NO contacts for auxiliary contacts | 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 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 2
| contact rating of auxiliary contacts according to UL | A600 / Q600 |
|---|---|
| UL File Number (CCN) | E31519 (NLDX, NLDX7) |
Short-circuit protection 3
| 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: for short-circuit protection of the auxiliary switch required | gG: 10 A (690 V, 1 kA) |
Installation/ mounting/ dimensions 18
| 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 60715 |
| height | 85 mm |
| width | 60 mm |
| depth | 97 mm |
| with side-by-side mounting: forwards | 10 mm |
| with side-by-side mounting: upwards | 10 mm |
| with side-by-side mounting: downwards | 10 mm |
| with side-by-side mounting: at the side | 0 mm |
| for grounded parts: forwards | 10 mm |
| for grounded parts: upwards | 10 mm |
| for grounded parts: at the side | 6 mm |
| for grounded parts: downwards | 10 mm |
| for live parts: forwards | 10 mm |
| for live parts: upwards | 10 mm |
| for live parts: downwards | 10 mm |
| for live parts: at the side | 6 mm |
Connections/ Terminals 19
| 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) |
| connectable conductor cross-section for main contacts: solid | 1 ... 10 mm2 |
| connectable conductor cross-section for main contacts: solid or stranded | 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 | 0.5 ... 2.5 mm2 |
| connectable conductor cross-section for auxiliary contacts: finely stranded with core end processing | 0.5 ... 2.5 mm2 |
| 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 |
Electrical Safety 2
| 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 |
Communication/ Protocol 1
| product function bus communication | No |
|---|
Approvals Certificates 1
| Environmental Product Declaration: global warming potential [CO2 eq] / during manufacturing | 2.26 kg |
|---|
Logistics 7
| Net weight | 0.451 kg |
|---|---|
| Package dimensions | 93 × 77 × 130 mm |
| Country of origin | DE |
| Shipping weight | 0.951 kg |
| Ships from | Türkiye |
| Dispatch | 12 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 29 Oct 2026
Documents
Documents for 3RT2327-1AP00
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Other ratings
All 9 ratings in Siemens 3RT2
Siemens Siemens 3RT2 series page →
| Motor power | Rated current | Part number | Model no | Stock | Dispatch | Price | Add to cart |
|---|---|---|---|---|---|---|---|
| 18 A | 3RT2316-1AP00 | 3RT2 | In stock | $31.22 | |||
| 22 A | 3RT2317-1AP00 | 3RT2 | In stock | $34.78 | |||
| 35 A | 3RT2325-1AP00 | 3RT2 | In stock | $54.80 | |||
| 40 A | 3RT2326-1AP00 | 3RT2 | In stock | $77.23 | |||
| 50 A | 3RT2327-1AP00 This part | 3RT2 | In stock | $120.46 | |||
| 60 A | 3RT2336-1AP00 | 3RT2 | In stock | $149.22 | |||
| 110 A | 3RT2337-1AP00 | 3RT2 | Low stock | $205.44 | |||
| 140 A | 3RT2346-1AP00 | 3RT2 | Low stock | $389.62 | |||
| 160 A | 3RT2348-1AP00 | 3RT2 | Low stock | $453.36 |
Certifications
Certifications and standards
- EN 60715
Quick answers
Questions about the 3RT23
What is the rated current of 3RT23?
The rated current of 3RT23 is 50 A.
Which supply voltage is 3RT23 rated for?
The rated operational voltage of 3RT23 is 400 V AC.
What is the EAN of 3RT23?
The EAN (GTIN) of 3RT23 is 4011209834774.
Where does 3RT23 ship from, and how fast?
3RT23 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
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NEMA vs IEC Contactor Standards: Key Differences and Size Comparison
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How to Select the Right Contactor for Your Application: Complete Checklist
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Series
Siemens Siemens 3RT2
- Brand
- Siemens
- Series
- Siemens 3RT2
- Rated current
- 18–160 A
- Supply voltage
- 400 V AC
- Ratings listed
- 9
