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.
The Siemens 3RT1487-6AP36 is a contactor from the SENTRON/SIRIUS 3RT1 series. Power contactor AC-1 2650 A / 690 V / 40 °C 3-pole, Uc: 100-240 V AC(50-60 Hz) / 100-220 V DC, drive: conventional auxiliary contacts 2 NO + 2 NC main circuit: busbar control and auxiliary circuit: screw terminal. Supplied by Stoklink for industrial and commercial low-voltage applications.
The Siemens 3RT1487-6AP36 is used in industrial control panels, distribution boards and automation systems. As part of the Siemens 3RT1 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.
| product brand name | SIRIUS |
|---|---|
| product designation | Contactor |
| product type designation | 3RT14 |
| 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 | 1 050 W |
| power loss [W] for rated value of the current: without load current share typical | 11 W |
| type of calculation of power loss current-dependent | quadratic |
| insulation voltage: of main circuit with degree of pollution 3 rated value | 1 000 V |
| insulation voltage: of auxiliary circuit with degree of pollution 3 rated value | 600 V |
| surge voltage resistance: of main circuit rated value | 8 kV |
| surge voltage resistance: of auxiliary circuit rated value | 6 kV |
| shock resistance with sine pulse: at AC | 5 g / 11 ms |
| shock resistance with sine pulse: at DC | 5 g / 11 ms |
| mechanical service life (operating cycles): of contactor typical | 300 000 |
| Substance Prohibitance (day/month/year) | 05/15/2019 |
| SVHC substance name | Lead CAS-No. 7439-92-1 |
| installation altitude at height above sea level maximum | 2 000 m |
|---|---|
| ambient temperature: during operation | -25 ... +55 °C |
| ambient temperature: during storage | -40 ... +80 °C |
| relative humidity minimum | 10 % |
| relative humidity at 55 °C according to IEC 60068-2-30 maximum | 95 % |
| Part number | 3RT1487-6AP36 |
|---|---|
| Type designation | 3RT14 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4047621054780 |
| ETIM class | EC000066 |
| eCl@ss | 27371003 |
| number of poles for main current circuit | 3 |
|---|---|
| number of NO contacts for main contacts | 3 |
| number of NC contacts for main contacts | 0 |
| type of voltage for main current circuit | AC |
| at AC-1: up to 690 V at ambient temperature 40 °C rated value | 2 650 A |
| at AC-1: up to 690 V at ambient temperature 55 °C rated value | 2 650 A |
| at AC-1: up to 1000 V at ambient temperature 40 °C rated value | 2 650 A |
| at AC-1: up to 1000 V at ambient temperature 55 °C rated value | 2 650 A |
| minimum cross-section in main circuit at maximum AC-1 rated value | 3 000 mm2 |
| no-load switching frequency: at AC | 300 1/h |
| no-load switching frequency: at DC | 300 1/h |
| operating frequency: at AC-1 maximum | 120 1/h |
| type of voltage of the control supply voltage | AC/DC |
|---|---|
| control supply voltage at AC: at 50 Hz rated value | 100 ... 240 V |
| control supply voltage at AC: at 60 Hz rated value | 100 ... 240 V |
| control supply voltage at DC rated value | 100 ... 220 V |
| operating range factor control supply voltage rated value of magnet coil at DC: initial value | 0.85 |
| design of the surge suppressor | with varistor |
| apparent pick-up power of magnet coil at AC: at 50 Hz | 1 800 V·A |
| apparent pick-up power of magnet coil at AC: at 60 Hz | 1 800 V·A |
| apparent holding power of magnet coil at AC: at 50 Hz | 33 V·A |
| apparent holding power of magnet coil at AC: at 60 Hz | 33 V·A |
| closing power of magnet coil at DC | 2 800 W |
| holding power of magnet coil at DC | 11 W |
| closing delay: at AC | 80 ms |
| closing delay: at DC | 80 ms |
| opening delay: at AC | 70 ms |
| opening delay: at DC | 70 ms |
| control version of the switch operating mechanism | Standard A1 - A2 |
| number of NC contacts for auxiliary contacts | 2 |
|---|---|
| attachable | 4 |
| instantaneous contact | 2 |
| number of NO contacts for auxiliary contacts | 2 |
| operational current at AC-12 maximum | 16 A |
| operational current at AC-15: at 230 V rated value | 3 A |
| operational current at AC-15: at 400 V rated value | 1.5 A |
| operational current at AC-15: at 500 V rated value | 1.4 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 | 0.55 A |
| operational current at DC-13: at 220 V rated value | 0.27 A |
| operational current at DC-13: at 600 V rated value | 0.1 A |
| for short-circuit protection of the main circuit: with type of coordination 2 required | aR: 2800 A (1000 V, 50 kA) |
|---|---|
| for short-circuit protection of the main circuit: for short-circuit protection of the auxiliary switch required | gG: 16 A (600 V, 1 kA) |
| mounting position | +/-30° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 30° on vertical mounting surface |
|---|---|
| fastening method side-by-side mounting | No |
| fastening method | screw fixing |
| height | 403 mm |
| width | 431 mm |
| depth | 246 mm |
| for grounded parts: forwards | 245 mm |
| for grounded parts: at the side | 215 mm |
| type of electrical connection: for main current circuit | busbar connection |
|---|---|
| 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 |
| width of connection bar | 103 mm |
| thickness of connection bar | 20 mm |
| diameter of holes | 13 mm |
| connectable conductor cross-section for auxiliary contacts: solid or stranded | 1 ... 2.5 mm2 |
| connectable conductor cross-section for auxiliary contacts: finely stranded with core end processing | 1 ... 2.5 mm2 |
| for auxiliary contacts: solid | 2x (1 ... 2,5 mm2) |
| for auxiliary contacts: solid or stranded | 2x (1 ... 2.5 mm2) |
| for auxiliary contacts: finely stranded with core end processing | 2x (1 ... 2,5 mm2) |
| for auxiliary contacts: for AWG cables for auxiliary contacts | 2x (16 ... 14) |
| AWG number as coded connectable conductor cross section for auxiliary contacts | 16 ... 14 |
| protection class IP on the front according to IEC 60529 | IP00 |
|---|
| Net weight | 53.12 kg |
|---|---|
| Package dimensions | 500 × 450 × 300 mm |
| Country of origin | Republic of Korea |
| Shipping weight | 58.12 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 29 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of 3RT14 is 2650 A.
The rated operational voltage of 3RT14 is 690 V AC.
The EAN (GTIN) of 3RT14 is 4047621054780.
3RT14 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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